Karna Wijaya

Year	Citations
2026	322
2025	649
2024	571
2023	370
2022	383
2021	222
2020	165
2019	154
2018	139
2017	110
2016	93
2015	78
2014	76
2013	63
2012	60
2011	59
2010	27
2009	25
2008	23
2007	14
2006	8
2005	15
2004	15
2003	13
2002	14
2001	11

#	Article Details	Year
1	Pt-promoted sulfated zirconia as catalyst for hydrocracking of LDPE plastic waste into liquid fuels Google Scholar 👨‍🔬 M Utami, K Wijaya, W Trisunaryanti 📚 Materials Chemistry and Physics 213, 548-555, 2018	2018
2	Sintesis TiO2/zeolit sebagai fotokatalis pada pengolahan limbah cair industri tapioka secara adsorpsi-fotodegradasi Google Scholar 👨‍🔬 I Fatimah, K Wijaya 📚 Teknoin 10 (4), 2005	2005
3	The synthesis of SO4/ZrO2 and Zr/CaO catalysts via hydrothermal treatment and their application for conversion of low-grade coconut oil into biodiesel Google Scholar 👨‍🔬 MS La Ore, K Wijaya, W Trisunaryanti, WD Saputri, E Heraldy, ... 📚 Journal of Environmental Chemical Engineering 8 (5), 104205, 2020	2020
4	Esterification of palm fatty acid distillate with high amount of free fatty acids using coconut shell char based catalyst Google Scholar 👨‍🔬 A Hidayat, K Wijaya, A Nurdiawati, W Kurniawan, H Hinode, K Yoshikawa, ... 📚 Energy Procedia 75, 969-974, 2015	2015
5	DNA binding of iron (II) complexes with 1, 10-phenanthroline and 4, 7-diphenyl-1, 10-phenanthroline: salt effect, ligand substituent effect, base pair specificity and binding … Google Scholar 👨‍🔬 K Wijaya, N Yoshioka, H Inoue 📚 Journal of inorganic biochemistry 94 (3), 263-271, 2003	2003
6	Effect of pyrolisis temperature and distillation on character of coconut shell liquid smoke Google Scholar 👨‍🔬 JZ Lombok, B Setiaji, W Trisunaryanti, K Wijaya 📚 Asian Journal of Science and Technology 5 (6), 320-325, 2014	2014
7	Synthesis of nickel catalyst supported on ZrO2/SO4 pillared bentonite and its application for conversion of coconut oil into gasoline via hydrocracking process Google Scholar 👨‍🔬 K Wijaya, MA Kurniawan, WD Saputri, W Trisunaryanti, M Mirzan, ... 📚 Journal of Environmental Chemical Engineering 9 (4), 105399, 2021	2021
8	Hydrothermal treatment of SO4/TiO2 and TiO2/CaO as heterogeneous catalysts for the conversion of Jatropha oil into biodiesel Google Scholar 👨‍🔬 RA Pratika, K Wijaya, W Trisunaryanti 📚 Journal of Environmental Chemical Engineering 9 (6), 106547, 2021	2021
9	Oxidation of remazol brilliant blue r (RB. 19) with in situ electro-generated active chlorine using Ti/PbO2 electrode Google Scholar 👨‍🔬 A Mukimin, K Wijaya, A Kuncaka 📚 Separation and purification technology 95, 1-9, 2012	2012
10	A comprehensive review of experimental parameters in bio-oil upgrading from pyrolysis of biomass to biofuel through catalytic hydrodeoxygenation Google Scholar 👨‍🔬 S Gea, YA Hutapea, AFR Piliang, AN Pulungan, R Rahayu, J Layla, ... 📚 BioEnergy Research 16 (1), 325-347, 2023	2023
11	Composites of TiO2-aluminum pillared montmorillonite: synthesis, characterization and photocatalytic degradation of methylene blue Google Scholar 👨‍🔬 I Fatimah, S Wang, K Wijaya 📚 Applied clay science 50 (4), 588-593, 2010	2010
12	Recent progress on sulfated nanozirconia as a solid acid catalyst in the hydrocracking reaction Google Scholar 👨‍🔬 SJ Sekewael, RA Pratika, L Hauli, AK Amin, M Utami, K Wijaya 📚 Catalysts 12 (2), 191, 2022	2022
13	Hydrothermal preparation of a platinum-loaded sulphated nanozirconia catalyst for the effective conversion of waste low density polyethylene into gasoline-range hydrocarbons Google Scholar 👨‍🔬 M Utami, W Trisunaryanti, K Shida, M Tsushida, H Kawakita, K Ohto, ... 📚 RSC advances 9 (71), 41392-41401, 2019	2019
14	Base-specific and enantioselective studies for the DNA binding of iron (II) mixed-ligand complexes containing 1, 10-phenanthroline and dipyrido [3, 2-a: 2′, 3′-c] phenazine Google Scholar 👨‍🔬 K Wijaya, ET Wahyuni, H Inoue, N Yoshioka 📚 Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 66 (1 …, 2007	2007
15	Titanium oxide dispersed on natural zeolite (TiO 2/Zeolite) and its application for congo red photodegradation Google Scholar 👨‍🔬 I Fatimah, E Sugiharto, K Wijaya, I Tahir, K Kamalia 📚 Indonesian Journal of Chemistry 6 (1), 38-42, 2010	2010
16	Recent advances and latest technologies in energy storage applications based on 2D MXene Google Scholar 👨‍🔬 L Kabir, J Qi, K Wijaya, S Sagadevan, CM Yoon, K Ullah, WC Oh 📚 Journal of Energy Storage 80, 110335, 2024	2024
17	Photocatalytic degradation of naphthol blue from Batik wastewater using functionalized TiO2-based composites Google Scholar 👨‍🔬 M Utami, S Wang, MM Musawwa, M Fitri, K Wijaya, D Johnravindar, ... 📚 Chemosphere 337, 139224, 2023	2023
18	Green synthesis of hierarchical porous carbon prepared from coconut lumber sawdust as Ni-based catalyst support for hydrotreating Callophyllum inophyllum oil Google Scholar 👨‍🔬 W Trisunaryanti, K Wijaya, T Triyono, AR Adriani, S Larasati 📚 Results in Engineering 11, 100258, 2021	2021
19	Preparation and characterization of sulfated zirconia from a commercial zirconia nanopowder Google Scholar 👨‍🔬 L Hauli, K Wijaya, R Armunanto 📚 Oriental Journal of Chemistry 34 (3), 1559, 2018	2018
20	Preparation and Characterization of TiO2-Zeolite and Its Application to Degrade Textille Wastewater by Photocatalytic Method Google Scholar 👨‍🔬 Y Utubira, K Wijaya, T Triyono, E Sugiharto 📚 Indonesian Journal of Chemistry 6 (3), 231-237, 2006	2006
21	Catalytic hydrocracking of fresh and waste frying oil over Ni-and Mo-based catalysts supported on sulfated silica for biogasoline production Google Scholar 👨‍🔬 K Wijaya, A Nadia, A Dinana, AF Pratiwi, AD Tikoalu, AC Wibowo 📚 Catalysts 11 (10), 1150, 2021	2021
22	Hydrocracking of LDPE Plastic Waste into Liquid Fuel over Sulfated Zirconia from a Commercial Zirconia Nanopowder. Google Scholar 👨‍🔬 L Hauli, K Wijaya, A Syoufian 📚 Oriental Journal of Chemistry 35 (1), 2019	2019
23	Effect of Aluminium Content in Aluminium Pillared Montmorillonite on Its Surface Acidity Properties. Google Scholar 👨‍🔬 IS Fatimah, K Wijaya 📚 ITB Journal of Science, 2011	2011
24	Synthesis and characterization of sulfated zirconia mesopore and its application on lauric acid esterification Google Scholar 👨‍🔬 A Rachmat, W Trisunaryanti, Sutarno, K Wijaya 📚 Materials for Renewable and Sustainable Energy 6 (3), 13, 2017	2017
25	Terapan analisis hansch untuk aktivitas antioksidan senyawa turunan flavon/flavonol Google Scholar 👨‍🔬 I Tahir, K Wijaya, D Widianingsih 📚 Makalah Seminar Khemometri 25, 2003	2003
26	Hydrocracking optimization of palm oil to bio-gasoline and bio-aviation fuels using molybdenum nitride-bentonite catalyst Google Scholar 👨‍🔬 H Hasanudin, WR Asri, M Said, PT Hidayati, W Purwaningrum, N Novia, ... 📚 RSC advances 12 (26), 16431-16443, 2022	2022
27	Silica-Based Solid Acid Catalyst with Different Concentration of H2SO4 and Calcination Temperature: Preparation and Characterization Google Scholar 👨‍🔬 A Aneu, K Wijaya, A Syoufian 📚 Silicon 13 (7), 2265-2270, 2021	2021
28	Anionic and cationic dyes removal from aqueous solutions by adsorption onto synthetic Mg/Al hydrotalcite-like compound Google Scholar 👨‍🔬 E Heraldy, SJ Santosa, T Triyono, K Wijaya 📚 Indonesian Journal of Chemistry 15 (3), 234-241, 2015	2015
29	Characteristics of coconut shell-based activated carbon as Ni and Pt catalyst supports for hydrotreating Calophyllum inophyllum oil into hydrocarbon-based biofuel Google Scholar 👨‍🔬 W Trisunaryanti, K Wijaya, T Triyono, N Wahyuningtyas, SP Utami, ... 📚 Journal of Environmental Chemical Engineering 10 (5), 108209, 2022	2022
30	Synthesis, characterizations and catalysis of sulfated silica and nickel modified silica catalysts for diethyl ether (DEE) production from ethanol towards renewable energy … Google Scholar 👨‍🔬 K Wijaya, ML Lammaduma Malau, M Utami, S Mulijani, A Patah, ... 📚 Catalysts 11 (12), 1511, 2021	2021
31	The Catalytic Performance of ZrO2-SO4 and Ni/ZrO2-SO4 Prepared from Commercial ZrO2 in Hydrocracking of LDPE Plastic Waste into Liquid Fuels. Google Scholar 👨‍🔬 AK Amin, K Wijaya, W Trisunaryanti 📚 Oriental Journal of Chemistry 34 (6), 2018	2018
32	Effect of sulfuric acid treatment and calcination on commercial zirconia nanopowder Google Scholar 👨‍🔬 M Utami, K Wijaya, W Trisunaryanti 📚 Key Engineering Materials 757, 131-137, 2017	2017
33	Environmental impacts and the food vs. fuel debate: A critical review of palm oil as biodiesel Google Scholar 👨‍🔬 I Purnama, A Mutamima, M Aziz, K Wijaya, ID Maulida, J Junaidi, K Sari, ... 📚 GCB Bioenergy 17 (6), e70043, 2025	2025
34	Mesoporous silica preparation using sodium bicarbonate as template and application of the silica for hydrocracking of used cooking oil into biofuel Google Scholar 👨‍🔬 K Wijaya, WD Saputri, ITA Aziz, Wangsa, E Heraldy, L Hakim, A Suseno, ... 📚 Silicon 14 (4), 1583-1591, 2022	2022
35	Antimicrobial Imperata cylindrica paper coated with anionic nanocellulose crosslinked with cationic ions Google Scholar 👨‍🔬 D Zulfiana, A Karimah, SH Anita, N Masruchin, K Wijaya, L Suryanegara, ... 📚 International journal of biological macromolecules 164, 892-901, 2020	2020
36	Lithium (I) in liquid ammonia: A quantum mechanical charge field (QMCF) molecular dynamics simulation study Google Scholar 👨‍🔬 N Prasetyo, LR Canaval, K Wijaya, R Armunanto 📚 Chemical Physics Letters 619, 158-162, 2015	2015
37	The potency of hydrothermally prepared sulfated silica (SO4/SiO2) as a heterogeneous acid catalyst for ethanol dehydration into diethyl ether Google Scholar 👨‍🔬 RA Pratika, K Wijaya, M Utami, S Mulijani, A Patah, S Alarifi, RR Mani, ... 📚 Chemosphere 341, 139822, 2023	2023
38	Ekstraksi kalium dari abu tandan kosong sawit sebagai katalis pada reaksi transesterifikasi minyak sawit Google Scholar 👨‍🔬 M Imaduddin, Y Yoeswono, K Wijaya, I Tahir 📚 Bulletin of Chemical Reaction Engineering & Catalysis 3 (1-3), 14-20, 2008	2008
39	Effect of palm empty bunch ash on transesterification of palm oil into biodiesel Google Scholar 👨‍🔬 J Sibarani, S Khairi, Y Yoeswono, K Wijaya, I Tahir 📚 Indo J. Chem 7 (3), 314-319, 2007	2007
40	Optimization of thiamine chitosan nanoemulsion production using sonication treatment Google Scholar 👨‍🔬 I Tahir, J Millevania, K Wijaya, RA Wahab, W Kurniawati 📚 Results in Engineering 17, 100919, 2023	2023
41	Porous silica modification with sulfuric acids and potassium fluorides as catalysts for biodiesel conversion from waste cooking oils Google Scholar 👨‍🔬 A Aneu, K Wijaya, A Syoufian 📚 Journal of Porous Materials 29 (5), 1321-1335, 2022	2022
42	Esterification of free fatty acid on palm fatty acid distillate using activated carbon catalysts generated from coconut shell Google Scholar 👨‍🔬 A Hidayat, K Wijaya, A Budiman 📚 Procedia Chemistry 16, 365-371, 2015	2015
43	Alkaline leaching-carbon from sugarcane solid waste for screen-printed carbon electrode Google Scholar 👨‍🔬 F Rahmawati, KR Heliani, AT Wijayanta, R Zainul, K Wijaya, T Miyazaki, ... 📚 Chemical Papers 77 (6), 3399-3411, 2023	2023
44	Effectively Synthesizing SO4/TiO2 Catalyst and Its Performance for Converting Ethanol into Diethyl Ether (DEE) Google Scholar 👨‍🔬 K Wijaya, AR Putri, S Sudiono, S Mulijani, A Patah, AC Wibowo, ... 📚 Catalysts 11 (12), 1492, 2021	2021
45	Fuel production from LDPE-based plastic waste over chromium supported on sulfated zirconia Google Scholar 👨‍🔬 L Hauli, K Wijaya, A Syoufian 📚 Indonesian Journal of Chemistry 20 (2), 422-429, 2020	2020
46	Multi‐pathways for sustainable fuel production from biomass using zirconium‐based catalysts: A comprehensive review Google Scholar 👨‍🔬 I Purnama, W Trisunaryanti, K Wijaya, A Mutamima, WC Oh, ... 📚 Energy Technology 12 (2), 2300901, 2024	2024
47	Self-regeneration of Monodisperse Hierarchical Porous NiMo/Silica Catalyst Induced by NaHCO3 for Biofuel Production Google Scholar 👨‍🔬 A Nadia, K Wijaya, II Falah, S Sudiono, A Budiman 📚 Waste and Biomass Valorization 13 (4), 2335-2347, 2022	2022
48	Microwave assisted preparation of TiO2/Al-pillared saponite for photocatalytic phenol photo-oxidation in aqueous solution Google Scholar 👨‍🔬 I Fatimah, K Wijaya 📚 Arabian Journal of Chemistry 8 (2), 228-232, 2015	2015
49	Hydroconversion of used palm cooking oil into bio-jet fuel over phosphoric acid-modified nano-zirconia catalyst Google Scholar 👨‍🔬 AJ Saviola, K Wijaya, A Syoufian, WD Saputri, DA Saputra, ITA Aziz, ... 📚 Case Studies in Chemical and Environmental Engineering 9, 100653, 2024	2024
50	Bio-oil hydrodeoxygenation over acid activated-zeolite with different Si/Al ratio Google Scholar 👨‍🔬 S Gea, I Irvan, K Wijaya, A Nadia, AN Pulungan, JL Sihombing, R Rahayu 📚 Biofuel Research Journal 9 (2), 1630-1639, 2022	2022
51	The effective combination of zirconia superacid and zirconia-impregnated CaO in biodiesel manufacturing: Utilization of used coconut cooking oil (UCCO) Google Scholar 👨‍🔬 EP Sari, K Wijaya, W Trisunaryanti, A Syoufian, H Hasanudin, WD Saputri 📚 International Journal of Energy and Environmental Engineering 13 (3), 967-978, 2022	2022
52	Kinetic model of crude palm oil hydrocracking over Ni/Mo ZrO2–pillared bentonite catalyst Google Scholar 👨‍🔬 H Hasanudin, A Rachmat, M Said, K Wijaya 📚 Periodica Polytechnica Chemical Engineering 64 (2), 238-247, 2020	2020
53	Reaction kinetics of free fatty acids esterification in palm fatty acid distillate using coconut shell biochar sulfonated catalyst Google Scholar 👨‍🔬 A Hidayat, Rochmadi, K Wijaya, A Budiman 📚 AIP Conference Proceedings 1699 (1), 050005, 2015	2015
54	Comparison of activated carbons prepared from Indonesian forest and agricultural residues. Google Scholar 👨‍🔬 A Hidayat, RO ROchmadi, K Wijaya, H Hinode, A Budiman	2012
55	Salt-dependent binding of iron (II) mixed-ligand complexes containing 1, 10-phenanthroline and dipyrido [3, 2-a: 2′, 3′-c] phenazine to calf thymus DNA Google Scholar 👨‍🔬 K Wijaya, ET Wahyuni, N Yoshioka, H Inoue 📚 Biophysical chemistry 121 (1), 44-50, 2006	2006
56	Nickel-modified sulfated zirconia catalyst: synthesis and application for transforming waste cooking oil into biogasoline via a hydrocracking process Google Scholar 👨‍🔬 K Wijaya, M Utami, AK Damayanti, I Tahir, AD Tikoalu, R Rajagopal, ... 📚 Fuel 322, 124152, 2022	2022
57	Synthesis ZrO2-montmorillonite and application as catalyst in catalytic cracking of heavy fraction of crude oil Google Scholar 👨‍🔬 I Fatimah, K Wijaya, KH Setyawan 📚 Bulletin of Chemical Reaction Engineering & Catalysis 3 (1-3), 9-13, 2008	2008
58	Recycling of nickel metal from spent nickel-manganese-cobalt (NMC) cathode batteries using H3PO4–H2C2O4 solution combination as an efficient leaching agent Google Scholar 👨‍🔬 A Bhagaskara, DA Saputra, AJ Saviola, K Wijaya, WC Oh, S Rahayu, ... 📚 Case Studies in Chemical and Environmental Engineering 10, 100844, 2024	2024
59	Microwave-assisted green synthesis of nitrobenzene using sulfated natural zeolite as a potential solid acid catalyst Google Scholar 👨‍🔬 AJ Saviola, K Wijaya, WD Saputri, L Hauli, AK Amin, H Ismail, ... 📚 Applied Nanoscience 13 (9), 6575-6589, 2023	2023
60	Synthesis and characterization of ZrO2-pillared bentonites Google Scholar 👨‍🔬 A Suseno, K Wijaya, W Trisunaryanti, M Shidiq 📚 Asian Journal of Chemistry 27 (7), 2619-2623, 2015	2015
61	Hydrocracking of palm oil into biogasoline catalyzed by Cr/natural zeolite. Google Scholar 👨‍🔬 K Wijaya, G Baobalabuana, W Trisunaryanti, A Syoufian	2013
62	Hydrocracking of oil residue from palm oil mill effluent to biofuel Google Scholar 👨‍🔬 H Hasanudin, MH Said, M Faizal, MH Dahlan, K Wijaya 📚 Sustainable Environment Research 22 (6), 395-400, 2012	2012
63	Application of Mesoporous NiMo/Silica (NiMo/SiO2) as a Catalyst in the Hydrocracking of Used Cooking Oil into Jet Fuel Google Scholar 👨‍🔬 RH Agharadatu, K Wijaya, Prastyo, Wangsa, L Hauli, WC Oh 📚 Silicon 16 (1), 331-343, 2024	2024
64	High effectiveness self-cleaning activity on TiO2/rGO nanocomposite synthesized by mangosteen (Garcinia mangostana L.) peel extract Google Scholar 👨‍🔬 M Utami, LS Rahmadhani, K Wijaya, B Ravindran, MW Alam, L Hauli, ... 📚 Results in Engineering 24, 103593, 2024	2024
65	Preparation of Mo-impregnated mordenite catalysts for the conversion of refined kernel palm oil into bioavtur Google Scholar 👨‍🔬 W Trisunaryanti, K Wijaya, I Kartini, S Purwono, A Mara, A Budiyansah 📚 Communications in Science and Technology 8 (2), 226-234, 2023	2023
66	Synthesis of biodiesel from castor oil catalyzed by sodium hydroxide dispersed on bentonite Google Scholar 👨‍🔬 M Utami, P Setiawan, II Falah, M Shidiq, K Wijaya, T Jarin, ... 📚 Sustainable Energy Technologies and Assessments 53, 102526, 2022	2022
67	Synthesis of iron oxide-montmorillonite composite and study of its structural stability againts sulfuric acid Google Scholar 👨‍🔬 K Wijaya, E Sugiharto, M Mudasir, I Tahir, I Liawati 📚 Indonesian Journal of Chemistry 4 (1), 33-42, 2010	2010
68	Fotodegradasi Zat Warna Methyl Orange Menggunakan Fe2O3-Montmorillonit dan Sinar Ultraviolet Google Scholar 👨‍🔬 Y Dhamayanti, K Wijaya, I Tahir 📚 Proseding Seminar Nasional DIES ke 50 FMIPA UGM, 22-29, 2005	2005
69	DNA-Binding Properties of Iron (II) Mixed-Ligand Complexes Containing 1, 10-Phenanthroline and Dipyrido [3, 2-a: 2’, 3’-c] phenazine Google Scholar 👨‍🔬 Mudasir, K Wijaya, DH Tjahjono, N Yoshioka, H Inoue 📚 Zeitschrift für Naturforschung B 59 (3), 310-318, 2004	2004
70	Atmospheric hydrotreatment of used palm cooking oil over nickel-dispersed phosphated zirconia as highly stable nano-catalyst for bio-jet fuel production Google Scholar 👨‍🔬 AJ Saviola, A Syoufian, WC Oh, K Wijaya 📚 Inorganic Chemistry Communications 173, 113790, 2025	2025
71	Enhanced catalytic conversion of palm oil into biofuels by Cr-incorporated sulphated zirconia Google Scholar 👨‍🔬 M Utami, R Safitri, MF Pradipta, K Wijaya, SW Chang, B Ravindran, D Ovi, ... 📚 Materials Letters 309, 131472, 2022	2022
72	Unveiling the potency of graphene-based materials for water remediation: A brief review Google Scholar 👨‍🔬 DY Lestari, K Wijaya, A Syoufian, PL Hariani, M Utami, AJ Saviola, ... 📚 Journal of Molecular Structure 1335, 142018, 2025	2025
73	Dehydration Isopropyl Alcohol to Diisopropyl Ether over Molybdenum Phosphide Pillared Bentonite. Google Scholar 👨‍🔬 H Hasanudin, WR Asri, K Tampubolon, F Riyanti, W Purwaningrum, ... 📚 Pertanika Journal of Science & Technology 30 (2), 2022	2022
74	Dealuminated and Desilicated Natural Zeolite as a Catalyst for Hydrocracking of Used Cooking Oil into Biogasoline Google Scholar 👨‍🔬 SE Purba, K Wijaya, W Trisunaryanti, RA Pratika 📚 Mediterranean Journal of Chemistry 11 (1), 75-83, 2021	2021
75	The Synthesis OF Cr2O3-Pillared Monmorillonite (CrPM) and Its Usage for Host Material of p-Nitroaniline Google Scholar 👨‍🔬 K Wijaya, I Tahir, A Baikuni 📚 Indo. J. Chem 2 (1), 12-21, 2002	2002
76	Preparasi dan karakterisasi lempung montmorillonit teraktivasi asam terpilar TiO2 Google Scholar 👨‍🔬 IN SIMPEN 📚 Universitas Gadjah Mada, 2001	2001
77	1, 4, 7, 10-Tetraoxacyclododecane–acetone thiosemicarbazone (1/2) Google Scholar 👨‍🔬 O Moers, K Wijaya, PG Jones, A Blaschette 📚 Crystal Structure Communications 55 (9), 1542-1545, 1999	1999
78	2D MXene-polymer based composites for biomedical applications Google Scholar 👨‍🔬 L Kabir, K Wijaya, S Sagadevan, J Unruangsri, K Ullah, WC Oh 📚 Journal of Alloys and Compounds 1031, 181068, 2025	2025
79	Effect of sulfuric acid treatment and calcination on natural zeolites of Indonesia Google Scholar 👨‍🔬 A Mara, K Wijaya, WT Mudasir 📚 Asian Journal of Chemistry 28 (1), 11, 2016	2016
80	Hydrocracking of used cooking oil into biofuel catalyzed by nickel-bentonite. Google Scholar 👨‍🔬 K Wijaya, A Syoufian, SD Ariantika	2014
81	Kamalia, 2006, Titan Dioksida Terdispersi Pada Zeolit Alam (Tio2/Zeolit) Dan Aplikasinya Untuk Fotodegradasi Congo Red Google Scholar 👨‍🔬 I Fatimah, E Sugiharto, K Wijaya, I Tahir 📚 Indonesian Journal of Chemistry 69 (1), 38-42, 2006	2006
82	Fotodegradasi metilen biru menggunakan katalis TiO2-montmorilonit dan sinar UV Google Scholar 👨‍🔬 IK Sumerta, K Wijaya, I Tahir 📚 Paper dipresentasikan pada Seminar Nasional Pendidikan Kimia, Yogyakarta …, 2002	2002
83	Representative modeling of biocompatible MXene nanocomposites for next-generation biomedical technologies and healthcare Google Scholar 👨‍🔬 S Srikrajang, L Kabir, S Sagadevan, K Wijaya, WC Oh 📚 Journal of Materials Chemistry B 13 (9), 2912-2951, 2025	2025
84	Preparation of Ni/ZSM-5 and Mo/ZSM-5 catalysts for hydrotreating palm oil into biojet fuel Google Scholar 👨‍🔬 W Trisunaryanti, K Wijaya, AM Tazkia 📚 Communications in Science and Technology 9 (1), 161-169, 2024	2024
85	Facile Synthesis of Various ZrO2 Phases and ZrO2-MO2 (M = Ti, Hf) by Thermal Decomposition of a Single UiO-66 Precursor for Photodegradation of Methyl … Google Scholar 👨‍🔬 INA Jannah, HF Sekarsari, S Mulijani, K Wijaya, AC Wibowo, A Patah 📚 Catalysts 12 (6), 609, 2022	2022
86	Performance of Ni-Mo sulfated nanozirconia catalyst for conversion of waste cooking oil into biofuel via hydrocracking process Google Scholar 👨‍🔬 A Hanifa, A Nadia, WD Saputri, A Syoufian, K Wijaya 📚 Materials Science Forum 1045, 79-89, 2021	2021
87	Synthesis of Co, Mo, Co-Mo and Mo-Co catalysts, supported on mesoporous silica-alumina for hydrocracking of α-cellulose pyrolysis oil Google Scholar 👨‍🔬 MF Marsuki, W Trisunaryanti, II Falah, K Wijaya 📚 Orient J Chem 34 (2), 955-962, 2018	2018
88	Synthesis and characterization of Ni-Cu doped zirconia-pillared bentonite Google Scholar 👨‍🔬 A Suseno, K Wijaya, W Trisunaryanti 📚 Oriental Journal of Chemistry 34 (3), 1427, 2018	2018
89	Seminar on Chemometrics-Chemistry Dept Gadjah Mada University Google Scholar 👨‍🔬 I Tahir, K Wijaya, D Widianingsih 📚 Terapan Analisis Hansch Untuk Aktivitas Antioksidan senyawa Turunan Flavon …, 2003	2003
90	I., Liawati, I.(2004) Sintesis komposit oksida besi montmorillonit dan uji stabilitas strukturnya terhadap asam sulfat Google Scholar 👨‍🔬 K Wijaya, E Sugiharto, IT Mudasir 📚 Indonesian Journal of Chemistry 4, 33-42, 0
91	Hydrodeoxygenation of refined palm kernel oil (RPKO) into bio-jet fuel using Mo/H-ZSM-5 catalysts Google Scholar 👨‍🔬 W Trisunaryanti, K Wijaya, I Kartini, S Purwono, Rodiansono, A Mara, ... 📚 Reaction Kinetics, Mechanisms and Catalysis 137 (2), 843-878, 2024	2024
92	Performance of hydrothermally prepared NiMo dispersed on sulfated zirconia nano-catalyst in the conversion of used palm cooking oil into jet fuel range bio-hydrocarbons Google Scholar 👨‍🔬 K Wijaya, AJ Saviola, AK Amin, MF Vebryana, A Bhagaskara, HA Ekawati, ... 📚 Bulletin of Chemical Reaction Engineering & Catalysis 19 (2), 361-371, 2024	2024
93	Recent trends and application of nanomaterial based on carbon paste electrodes: a short review Google Scholar 👨‍🔬 K Wijaya, RA Pratika, A Nadia, F Rahmawati, R Zainul, WC Oh, ... 📚 Transdisciplinary Research and Education Center for Green Technologies …, 2023	2023
94	Bio-oil hydrodeoxygenation over zeolite-based catalyst: the effect of zeolite activation and nickel loading on product characteristics Google Scholar 👨‍🔬 S Gea, Irvan, K Wijaya, A Nadia, AN Pulungan, JL Sihombing, Rahayu 📚 International Journal of Energy and Environmental Engineering 13 (2), 541-553, 2022	2022
95	Kalium hydroxide/zirconia pillared bentonite for palm oil transesterification Google Scholar 👨‍🔬 Y Utubira, K Wijaya, ES Kunarti 📚 Oriental Journal of Chemistry 34 (3), 1484, 2018	2018
96	Effect of koh as stabilizer on mechanical and chemical properties of liquid rubber compound Google Scholar 👨‍🔬 TD Sutanto, B Setiaji, K Wijaya, TE Suharto 📚 Asian Journal of Chemistry 26 (24), 8371, 2014	2014
97	Nanomaterial Berlapis dan Berpori: Sintesis, Karakterisasi dan Perannya sebagai Material Multi Fungsi Google Scholar 👨‍🔬 K Wijaya 📚 Universitas Gajah Mada, Fakultas Matematika dan Ilmu Pengetahuan Alam …, 2010	2010
98	PHOTODEGRADATION OF ALIZARIN S DYE USING TiO 2-ZEOLITE AND UV RADIATION Google Scholar 👨‍🔬 K Wijaya, E Sugiharto, I Fatimah, I Tahir, R Rudatiningsih 📚 Indonesian Journal of Chemistry 6 (1), 32-37, 2010	2010
99	Pengaruh Metode Preparasi Terhadap Karakter Fisikokimiawi Montmorillonit Termodifikasi ZrO2 Google Scholar 👨‍🔬 I Fatimah, K Wijaya 📚 Akta Kimindo 1 (2), 87-92, 2006	2006
100	Polysulfonylamines. CIX. 1, 2, 4-Triazolium di (methanesulfonyl) amidate Google Scholar 👨‍🔬 O Moers, K Wijaya, PG Jones, A Blaschette 📚 Crystal Structure Communications 55 (5), 754-756, 1999	1999
101	Polysulfonylamines. CI. 1, 4, 7, 10-Tetraoxacyclododecane–Di (benzenesulfonyl) amine (1/2) Google Scholar 👨‍🔬 K Wijaya, O Moers, PG Jones, A Blaschette 📚 Crystal Structure Communications 54 (6), 818-820, 1998	1998
102	Triyono, & Sugiharto, E.(2006). Preparasi dan Karakterisasi TiO2-Zeolit Serta Pengujiannya pada Degradasi Limbah Industri Tekstil secara Fotokatalitik, Indo Google Scholar 👨‍🔬 Y Utubira, K Wijaya 📚 J. Chem 6 (3), 231-237, 0
103	Conversion of Used Cooking Oil into Biodiesel by Utilizing Zirconia Catalyst as Acid Catalyst (SO4/ZrO2) and Base Catalyst (ZrO2/CaO) Google Scholar 👨‍🔬 RA Pratika, Z Nafisah, Y Yuliana, S Syarpin, RM Iqbal, Y Ysrafil, K Wijaya 📚 Arabian Journal for Science and Engineering 50 (9), 6595-6608, 2025	2025
104	Progressive MXene-based photocatalytic and electrocatalytic sustainable reduction of CO 2 to chemicals: comprehensive review and future directions Google Scholar 👨‍🔬 L Kabir, K Wijaya, WC Oh 📚 Sustainable Energy & Fuels 8 (12), 2535-2569, 2024	2024
105	Production of levulinic acid from glucose using nickel phosphate-silica catalyst Google Scholar 👨‍🔬 QU Putri, H Hasanudin, WR Asri, A Mara, R Maryana, S Gea, K Wijaya 📚 Reaction Kinetics, Mechanisms and Catalysis 136 (1), 287-309, 2023	2023
106	Synthesis of Nickel-loaded sulfated zirconia catalyst and its application for converting used palm cooking oil to gasoline via hydrocracking process Google Scholar 👨‍🔬 ITA Aziz, WD Saputri, W Trisunaryanti, S Sudiono, A Syoufian, A Budiman, ... 📚 Periodica Polytechnica Chemical Engineering 66 (1), 101-113, 2022	2022
107	Effect of promoters and calcination temperature on surface and acidity of modified zirconia Google Scholar 👨‍🔬 AK Amin, W Trisunaryanti, K Wijaya 📚 Journal of Nano Research 57, 31-39, 2019	2019
108	Removal of free fatty acid in Palm Fatty Acid Distillate using sulfonated carbon catalyst derived from biomass wastefor biodiesel production Google Scholar 👨‍🔬 A Hidayat, Rochmadi, K Wijaya, A Budiman 📚 IOP Conference Series: Materials Science and Engineering 105 (1), 012026, 2016	2016
109	Biodiesel Dari Minyak Goreng Bekas Google Scholar 👨‍🔬 K Wijaya 📚 Diakses dari http://www. pse. ugm. ac. id, 2011	2011
110	Study of Thermal and Acid Stability of Bentonite Clay Google Scholar 👨‍🔬 K Wijaya, AS Pratiwi, S Sudiono, E Nurahmi 📚 Indonesian Journal of Chemistry 2 (1), 22-29, 2010	2010
111	Electro-degradation of reactive blue dyes using cylinder modified electrode: Ti/β-PbO 2 as dimensionally stable anode Google Scholar 👨‍🔬 A Mukimin, K Wijaya, A Kuncaka 📚 Indonesian Journal of Chemistry 10 (3), 285-289, 2010	2010
112	A comparative study on aluminium pillared smectite synthesis from synthetic saponite and Indonesian montmorillonite Google Scholar 👨‍🔬 I Fatimah, S Wang, K Wijaya, A NARSITO 📚 Asean J. Chem. Eng 8 (1), 69-77, 2008	2008
113	Synthesis Of Fe 2 O 3-Montmorillonite And Its Application As A Photocatalyst For Degradation Of Congo Red Dye Google Scholar 👨‍🔬 K Wijaya, I Tahir, N Haryanti 📚 Indonesian Journal of Chemistry 5 (1), 41-47, 2005	2005
114	Sintesis Fe2O3-Monmorillonite dan Aplikasinya sebagai Fotokatalis untuk Degradasi Zat Pewarna Congo Red Google Scholar 👨‍🔬 K Wijaya, I Tahir, N Haryanti 📚 Indonesian Journal of Chemistry 5 (1), 41-47, 2005	2005
115	Polysulfonylamines, CLIII. Weak hydrogen bonding with activated methyl donors: Crystal structures of cholinium, betainium and dimethyl [2-(dimethylamino) ethyl] ammonium … Google Scholar 👨‍🔬 D Henschel, O Moers, K Wijaya, A Wirth, A Blaschette, PG Jones 📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 57 (5 …, 2002	2002
116	Synthesis of cobalt-dispersed sulfated zirconia nanocatalyst for the hydroconversion of used palm cooking oil into bio-jet fuel Google Scholar 👨‍🔬 RA Fitria, N Prasetyo, AJ Saviola, W Trisunaryanti, A Syoufian, AK Amin, ... 📚 Case Studies in Chemical and Environmental Engineering 11, 101052, 2025	2025
117	Utilization of laboratory glove waste for fuel production through pyrolysis-hydrocracking consecutive process catalyzed by sulfated Indonesian natural zeolite Google Scholar 👨‍🔬 W Wangsa, AJ Saviola, K Wijaya, A Bhagaskara, L Hauli, DA Saputra 📚 Reaction Kinetics, Mechanisms and Catalysis 137 (3), 1495-1514, 2024	2024
118	Bandgap energy controlling and electrochemical performances of quaternary metal oxide combined graphene-TiO2 nanocomposite and its photocatalytic hydrogen evolution Google Scholar 👨‍🔬 K Ullah, KS Cho, K Wijaya, WC Oh 📚 Inorganic Chemistry Communications 167, 112541, 2024	2024
119	Effect of arrangements in an atmospheric hydrotreating reactor of cobalt and/or molybdenum dispersed on activated carbon catalysts toward bio-jet fuel production from refined … Google Scholar 👨‍🔬 A Yulianto, W Trisunaryanti, T Triyono, AJ Saviola, K Wijaya, I Kartini, ... 📚 Case Studies in Chemical and Environmental Engineering 10, 100894, 2024	2024
120	A review for MXene-based hybrid nanocomposites toward electro-/photocatalytic hydrogen evolution reactions Google Scholar 👨‍🔬 L Kabir, K Wijaya, J Li, J Unruangsri, WC Oh 📚 Journal of Environmental Chemical Engineering 12 (6), 114483, 2024	2024
121	Silica-based catalysts for biodiesel production: a brief review Google Scholar 👨‍🔬 A Aneu, RA Pratika, Hasanudin, S Gea, K Wijaya, WC Oh 📚 Silicon 15 (12), 5037-5047, 2023	2023
122	Montmorillonite-zirconium phosphate catalysts for methanol dehydration Google Scholar 👨‍🔬 H Hasanudin, WR Asri, QU Putri, Z Fanani, D Bahrin, TE Agustina, ... 📚 Iranian Journal of Catalysis 12 (3), 2022	2022
123	QSAR modeling for predicting the antifungal activities of gemini imidazolium surfactants against Candida albicans using GA-MLR methods Google Scholar 👨‍🔬 E Setiawan, K Wijaya, M Mudasir 📚 Journal of Applied Pharmaceutical Science 11 (4), 022-027, 2021	2021
124	Preparation of Cr metal supported on sulfated zirconia catalyst Google Scholar 👨‍🔬 L Hauli, K Wijaya, RIA Armunanto 📚 Materials Science Forum 948, 221-227, 2019	2019
125	The Jahn-Teller effect in mixed aqueous solution: the solvation of Cu2+ in 18.6% aqueous ammonia obtained from ab initio quantum mechanical charge field … Google Scholar 👨‍🔬 WD Saputri, K Wijaya, HD Pranowo, TS Hofer 📚 Pure and Applied Chemistry 91 (10), 1553-1565, 2019	2019
126	Synthesis and Characteristics of the Magnetic Properties of Fe3O4-(CTAB-montmorillonite) Composites, based on Variation in Fe3+/Fe2+ Concentrations. Google Scholar 👨‍🔬 SH Siregar, K Wijaya, ES Kunarti, A Syoufian 📚 Oriental journal of chemistry 34 (2), 2018	2018
127	Synthesis of Cr/Al2O3- Bentonite Nanocomposite as the Hydrocracking Catalyst of Castor Oil Google Scholar 👨‍🔬 K Wijaya, AD Ariyanti, I Tahir, A Syoufian, A Rachmat, H Hasanudin 📚 Nano Hybrids and Composites 19, 46-54, 2018	2018
128	Penggunaan metode semiempirik AM1 untuk pemilihan monomer fungsional efektif pada prasintesis polimer tercetak diazinon Google Scholar 👨‍🔬 A Saputra 📚 Jurnal Kimia Valensi, 2017	2017
129	EFFECT of scandium on hidrogen dissociation energy at magnesium surface: Ab initio dft study Google Scholar 👨‍🔬 IW Sutapa, R Armunanto, K Wijaya 📚 Indonesian Journal of Chemistry 10 (2), 184-188, 2010	2010
130	Preparation of TiO2/Alumunium Pillared Montmorillonite and its Aplication for methylene Blue Photodegradation under UV Illumination Google Scholar 👨‍🔬 I Fatimah, K Wijaya, N Narsito, S Wang 📚 World journal of Chemistry 4 (1), 21-26, 2009	2009
131	Polysulfonylamine, CLXX [1]. Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Drei Strukturen mit NH2-substituierten 1,3,5-Triazinium-Kationen (einschließlich … Google Scholar 👨‍🔬 K Wijaya, O Moers, D Henschel, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung B 59 (7), 747-756, 2004	2004
132	Polysulfonylamine, XCVI [1]. Homokonjugate aus Di (organosulfonyl) aminen und ihren konjugierten Anionen: Vier Kristallstrukturen mit asymmetrischen [N-H··· N … Google Scholar 👨‍🔬 K Wijaya, D Henschel, O Moers, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung B 52 (10), 1219-1228, 1997	1997
133	Facile green synthesis of silver nanoparticles decorated on sulfonated graphene oxide by rambutan (Nephelium lappaceum) leaf extract and application as a catalyst for … Google Scholar 👨‍🔬 DY Lestari, A Syoufian, PL Hariani, AJ Saviola, WC Oh, AK Amin, ... 📚 Results in Engineering 25, 104321, 2025	2025
134	Sonochemically modified lapindo mud using sulfuric acid for efficient adsorption of phenol in aqueous media and real wastewater samples Google Scholar 👨‍🔬 K Wijaya, A Bhagaskara, MFM Sani, MF Vebryana, FA Pratama, ... 📚 Bulletin of Chemical Reaction Engineering & Catalysis 19 (4), 635-648, 2024	2024
135	Investigation of the preferential solvation and dynamical properties of Cu+ in 18.6% aqueous ammonia solution using ab initio quantum mechanical charge field (QMCF) molecular … Google Scholar 👨‍🔬 WD Saputri, Y Hidayat, K Wijaya, HD Pranowo, TS Hofer 📚 Journal of Molecular Liquids 275, 859-866, 2019	2019
136	Pengaruh Pemanasan Terhadap Kristalinitas Dan Parameter Kisi Nanokomposit Silika-Zirkonia Montmorillonit K10 Dan Silika-Besi Oksida Montmorillonit K10 Google Scholar 👨‍🔬 S Sekewael 📚 Indo. J. Chem. Res., 2018	2018
137	Preparation and characterization of montmorillonite-cetyl trimethylammonium bromide Google Scholar 👨‍🔬 SH Siregar, K Wijaya, ES Kunarti, A Syoufian 📚 Asian Journal of Chemistry 30 (1), 25-28, 2017	2017
138	Mg/Al hydrotalcite-like synthesized from brine water for eosin yellow removal Google Scholar 👨‍🔬 E Heraldy, T Triyono, K Wijaya, SJ Santosa 📚 Indonesian Journal of Chemistry 11 (2), 117-123, 2011	2011
139	Synthesis of Mg/Al Hydrotalcite-like from Brine Water and Its Application for Methyl Orange Removal: A Preliminary Study Google Scholar 👨‍🔬 E Heraldy, T Triyono 📚 Makara Journal of Science 15 (1), 17, 2011	2011
140	Terapan Analisis Hansch Untuk Aktivitas Antioksidan senyawa Turunan Flavon Google Scholar 👨‍🔬 I Tahir, K Wijaya, D Wdianingsih, B Purwono 📚 Flavonol. Jogjakarta. Makalah Seminar Khemometri. Jurusan Kimia FMIPA UGM, 2003	2003
141	Sintesis lempung terpilar Cr2O3 dan pemanfaatannya sebagai inang senyawa p-nitroanalin Google Scholar 👨‍🔬 K Wijaya, I Tahir, A Bakuni 📚 Indonesia Jurnal of Chemistry 2 (1), 12-21, 2002	2002
142	Lempung Terpilar (Pillared Clay) sebagai Material Multiguna Google Scholar 👨‍🔬 K Wijaya 📚 Jurnal Ilmu Kimia, FMIPA UIII, Yogyakarta 1, 1-10, 2000	2000
143	Polysulfonylamines, CXXVI-Hydrogen bonding in crystalline onium dimesylamides: A robust eight-membered ring synthon in coexistence with a third hydrogen bonding motif … Google Scholar 👨‍🔬 O Moers, K Wijaya, I Lange, A Blaschette, PG Jones 📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 55 (8 …, 2000	2000
144	Exploring non-conventional techniques in biodiesel production: A brief review Google Scholar 👨‍🔬 D Krisdiyanto, K Wijaya, A Syoufian, AJ Saviola, RA Fitria, ... 📚 Molecular Catalysis 584, 115289, 2025	2025
145	Modification of TiO2 as SO4/TiO2 Acid and CaO/TiO2 Base Catalysts and Their Applications in Conversion of Waste Frying Oil (WFO) into Biodiesel Google Scholar 👨‍🔬 K Wijaya, RA Pratika, W Trisunaryanti, AD Tikoalu 📚 Advances in Catalysts Research, 377-414, 2024	2024
146	MgO/γ-Alumina and CaO/γ-Alumina Catalysts for The Transesterification of Castor Oil (Ricinus Communis) into Biodiesel Google Scholar 👨‍🔬 DA Saputra, AK Amin, K Wijaya, T Triyono, W Trisunaryanti, ... 📚 Iranian Journal of Chemistry and Chemical Engineering 43 (4), 1622-1634, 2024	2024
147	Optimizing nitrobenzene synthesis catalyzed by sulfated silica (SO4/SiO2) through response surface methodological approach Google Scholar 👨‍🔬 A Sabilladin, AJ Saviola, K Wijaya, AS Hutama, MF Pradipta, WD Saputri, ... 📚 Korean Journal of Materials Research 34 (7), 341-354, 2024	2024
148	Efficient conversion of used palm cooking oil into biogasoline over hydrothermally prepared sulfated mesoporous silica loaded with NiMo catalyst Google Scholar 👨‍🔬 K Wijaya, S Ramadhani, AJ Saviola, N Prasetyo, S Gea, L Hauli, AK Amin, ... 📚 Results in Engineering 24, 103185, 2024	2024
149	Synthesis of SO4/ZrO2 catalyst and its application in the conversion of ethanol to diethyl ether Google Scholar 👨‍🔬 R Septiyaningrum, AK Amin, W Trisunaryanti, K Wijaya 📚 IRANIAN JOURNAL OF CATALYSIS 12 (4), 439-450, 2022	2022
150	Synthesis and application of Na2O/ZrO2 nanocomposite for microwave-assisted transesterification of castor oil Google Scholar 👨‍🔬 D Hidayat, A Syoufian, M Utami, K Wijaya 📚 ICS Physical Chemistry 1 (1), 26-26, 2021	2021
151	Chemical modification of montmorillonite K10 and its catalytic activity Google Scholar 👨‍🔬 S Sekewael 📚 Asian Journal of Chemistry, 2020	2020
152	Catalytic Synthesis of Diethanolamide Surfactant from Used Cooking Oil Google Scholar 👨‍🔬 M Utami, K Wijaya, A Syoufian, SH Wicaksono 📚 EKSAKTA: Journal of Sciences and Data Analysis, 133-138, 2020	2020
153	Pilarisasi dan karakterisasi montmorillonit Google Scholar 👨‍🔬 Y Istinia, K Wijaya, I Tahir, M Mudasir 📚 Jurnal Sains Materi Indonesia 4 (3), 1-7, 2018	2018
154	Determination of effective functional monomer and solvent for R (+)-cathinone imprinted polymer using density functional theory and molecular dynamics simulation approaches Google Scholar 👨‍🔬 A Saputra, K Wijaya, R Armunanto, L Tania, I Tahir 📚 Indonesian Journal of Chemistry 17 (3), 516-522, 2017	2017
155	Nanomaterial: Aplikasinya dalam Pembuatan Biofuel Google Scholar 👨‍🔬 K Wijaya, K Hadi, AT Herlina, Idra, Kurnia 📚 Gadjah Mada University Press 1, 225, 2016	2016
156	Biofuel di Indonesia: Prospek, Perspektif dan Strategi Pengembangannya Google Scholar 👨‍🔬 K Wijaya 📚 Yogyakarta: Universitas Gadjah Mada, 2012	2012
157	Polysulfonylamines. CXXXII. Google Scholar 👨‍🔬 K Wijaya, O Moers, PG Jones, A Blaschette 📚 Crystal Structure Communications 57 (2), 167-169, 2001	2001
158	I. & Asean, F.(2003). Inklusi Senyawa P-Nitroanilin ke dalam Pori-pori Montmorillionit Terpilar TiO2 Google Scholar 👨‍🔬 K Wijaya, T Mudasir 📚 Jurnal Kimia 2 (6), 84-94, 0
159	Advances in electrochemical technologies for sustainable wastewater treatment and chemical synthesis: mechanisms, challenges, and prospects Google Scholar 👨‍🔬 R Zainul, R Chaya, K Wijaya, F Rahmawati, IA Laghari, D Rahmadiawan, ... 📚 Journal of Medicinal and Pharmaceutical Chemistry Research 6 (2), 140-156, 2024	2024
160	Highly Active Mesoporous Zirconium Nitride Immobilized on SiO2 Synthesized by Complex-Assisted Method with EDTA and KHP for Catalytic Hydroconversion of … Google Scholar 👨‍🔬 WR Asri, H Hasanudin, K Wijaya 📚 Catalysis Surveys from Asia 28 (1), 74-87, 2024	2024
161	Preparation and catalytic evaluation of phosphated zirconia nanopowder for ethanol dehydration into diethyl ether Google Scholar 👨‍🔬 A Alifi, AJ Saviola, K Wijaya, A Syoufian, N Prasetyo, P Wahyuningsih, ... 📚 Journal of the Indian Chemical Society 101 (8), 101204, 2024	2024
162	Synthesis of SO42–/ZrO2 solid acid and Na2O/ZrO2 solid base catalysts using hydrothermal method for biodiesel production from low-grade crude palm oil Google Scholar 👨‍🔬 S Setyaningsih, M Utami, A Syoufian, E Heraldy, NW Yuwono, K Wijaya 📚 Indonesian Journal of Chemistry 22 (1), 17-34, 2022	2022
163	Simultaneous Extraction and In-Situ Transesterification of Chlorella vulgaris Using Microwave-Assisted Method for Biodiesel Production Google Scholar 👨‍🔬 R Adhiputra, M Utami, EA Suyono, A Budiman, PL Hariani, A Setyopratiwi, ... 📚 Korean Journal of Materials Research 31 (4), 181-187, 2021	2021
164	Optimizations of microwave-assisted extraction and transesterification of bio-crude oil from spirulina (Arthrospira platensis) Google Scholar 👨‍🔬 A Purnama, K Wijaya, I Tahir, EA Suyono, A Budiman 📚 Korean Journal of Chemical Engineering 37 (3), 466-474, 2020	2020
165	Chrom/Nanocomposite ZrO2- Pillared Bentonite Catalyst for Castor Oil (Ricinus communis) Hydrocracking Google Scholar 👨‍🔬 K Wijaya, A Syoufian, A Fitroturokhmah, W Trisunaryanti, D Adi Saputra, ... 📚 Nano Hybrids and Composites 27, 31-37, 2019	2019
166	Investigation of the structural and dynamical properties of Cu+ in liquid ammonia: a quantum mechanical charge field (QMCF) molecular dynamics study Google Scholar 👨‍🔬 WD Saputri, K Wijaya, R Armunanto 📚 Indonesian Journal of Chemistry 17 (3), 531-537, 2017	2017
167	Kunarti, Microwave assisted preparation of zirconiapillared bentonite Google Scholar 👨‍🔬 Y Utubira, K Wijaya, ES Triyono 📚 Int. J. ChemTech Res 9, 475-482, 2016	2016
168	Microwave Assisted Preparation and Physico-Chemical Properties of Mixed Oxides Silica-Zirconia Montmorillonite K10 Nanocomposite Google Scholar 👨‍🔬 SJ Sekewael, K Wijaya, A Budiman 📚 Asian Journal of Chemistry 28 (10), 2325, 2016	2016
169	Synthesis and Application of Alumina Pillared Bentonite Catalyst for Esterification of Acetic Acid with Different Alcohols. Google Scholar 👨‍🔬 P Wahyuningsih, K Wijaya, W Trisunaryanti, A Mara 📚 Asian Journal of Chemistry 27 (4), 2015	2015
170	Synthesis of Biogasoline from Used Palm Cooking Oil Through Catalytic Hydrocracking by Using Cr-Activated Natural Zeolite as Catalyst. Google Scholar 👨‍🔬 K Wijaya, M Shidiq, M Fahrurrozi 📚 Asian Journal of Chemistry 26 (16), 2014	2014
171	Preparasi komposit Krom Oksida-Montmorillonit dan aplikasinya untuk sorpsi Benzena Google Scholar 👨‍🔬 I NEGARA 📚 Universitas Gadjah Mada, 2005	2005
172	Polysulfonylamines, CLXVII [1]. Hydrogen bonding in crystalline onium dimesylamides: A robust three-point pattern integrated into a 2D, a twofold interwoven 2D, or a 3D … Google Scholar 👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones 📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 59 (1 …, 2004	2004
173	Multifunction Of Layered And Porous Materials= Bahan Berlapis dan Berpori Sebagai Bahan Multifungsi Google Scholar 👨‍🔬 K Wijaya 📚 Indonesian Journal of Chemistry 2 (2002), 2002	2002
174	Polysulfonylamines. CX. Hydroxylammonium di (methanesulfonyl) amidate 1, 4, 7, 10, 13, 16-hexaoxacyclooctadecane (1/1/1) and 2-aminopyridinium di (methanesulfonyl) amidate 1, 4 … Google Scholar 👨‍🔬 D Henschel, K Wijaya, PG Jones, A Blaschette 📚 Crystal Structure Communications 55 (4), 664-668, 1999	1999
175	Biogenic synthesis of silver nanoparticles/reduced graphene oxide (AgNPs/rGO) mediated Nephelium lappaceum leaf extract as an effective solid acid catalyst for liquid-phase … Google Scholar 👨‍🔬 DY Lestari, A Syoufian, PL Hariani, AK Amin, WC Oh, AJ Saviola, ... 📚 Results in Chemistry 13, 102014, 2025	2025
176	Microwave radiation-assisted chitin deacetylation: Optimization by response surface methodology (RSM) Google Scholar 👨‍🔬 I Tahir, K Wijaya, D Krismayanti, AJ Saviola, RA Wahab, AK Amin, ... 📚 Korean Journal of Materials Research 34 (2), 85-94, 2024	2024
177	Porous Al2O3-pillared bentonite synthesized by sonochemistry and its performance as a catalyst in diethyl ether production via ethanol dehydration Google Scholar 👨‍🔬 P Wahyuningsih, AJ Saviola, K Wijaya, AS Hutama, WC Oh, L Hauli 📚 Reaction Kinetics, Mechanisms and Catalysis 137 (4), 2231-2252, 2024	2024
178	Fixing cobalt metal onto mordenite through spray impregnation and its evaluation as a catalyst in transforming used coconut cooking oil into bio-jet fuel Google Scholar 👨‍🔬 AJ Saviola, K Wijaya, A Syoufian, MF Vebryana, W Anggraeni, K Rozana, ... 📚 Communications in Science and Technology 9 (2), 356-365, 2024	2024
179	Sulfuric acid-activated silica gel as a potential solid acid catalyst Google Scholar 👨‍🔬 W Wangsa, RA Pratika, TS Ningrum, K Wijaya 📚 Key Engineering Materials 920, 159-165, 2022	2022
180	QSPR Models for Predicting Critical Micelle Concentration of Gemini Cationic Surfactants Combining Machine-Learning Methods and Molecular Descriptors Google Scholar 👨‍🔬 E Setiawan, M Mudasir, K Wijaya 📚 ChemRxiv 2020 (0124), 2020	2020
181	Physico-chemical properties of nickel promoted sulfated zirconia powder prepared using different procedures Google Scholar 👨‍🔬 AK Amin, W Trisunaryanti, K Wijaya 📚 Asian Journal of Chemistry 32 (3), 555-560, 2020	2020
182	Conversion of bioethanol to diethyl ether catalyzed by sulfuric acid and zeolite Google Scholar 👨‍🔬 WF Winata, K Wijaya, A Mara, W Kurniawati 📚 J. Idn. Chem. Soc 3, 151-157, 2020	2020
183	Synthesis of H/Bentonite and Ni/Al2O3-bentonite and its application to produce biogasoline from nyamplung seed (Calophyllum inophillum Linn) oil by catalytic hydrocracking Google Scholar 👨‍🔬 AT Marini, K Wijaya, NA Sasongko 📚 IOP Conference Series: Earth and Environmental Science 124 (1), 012009, 2018	2018
184	Chrome impregnated on Bentonite (Cr-Bentonite) as hydrocracking catalyst of used cooking oil Google Scholar 👨‍🔬 R Mandey, K Wijaya, A Syoufian 📚 Asian Journal of Chemistry 28 (2), 282, 2016	2016
185	Karakterisasi dan aplikasi katalis nikel-molibdenum teremban pada zeolit alam aktif untuk hidrorengkah tir batubara Google Scholar 👨‍🔬 DJ Sugianto, K Wijaya, I Tahir 📚 Jurnal Natur Indonesia 16 (1), 10-22, 2014	2014
186	Interaction of iron (ii) mixed-ligand complexes with DNA: Base-pair specificity and thermal denaturation studies Google Scholar 👨‍🔬 M Mudasir, K Wijaya, ET Wahyuni, H Inoue 📚 Indonesian Journal of Chemistry 4 (3), 174-179, 2010	2010
187	Hubungan kuantitatif struktur-aktivitas antiradikal senyawa turunan flavon/flavonol berdasarkan pendekatan Free-Wilson Google Scholar 👨‍🔬 I Tahir, K Wijaya, D Widianingsih 📚 Pros. Semin. Nas. Kim. Fis. III, 2003	2003
188	Quantitative relationships between molecular structure and melting point of several organic compounds Google Scholar 👨‍🔬 I Tahir, K Wijaya, MU Yahya, M Yapin 📚 Indonesian J. Chem 2 (2), 83-90, 2002	2002
189	Multifuction of Layered and Porous Material Google Scholar 👨‍🔬 K Wijaya 📚 Indonesian Journal of Chemistry 2 (3), 142-154, 2002	2002
190	Polysulfonylamine, CXLIII [1], Rolle schwacher Wasserstoffbrücken (C-H··· O) in den Kristallstrukturen von 2, 6-Dimethylpyridinium-, 1-Hydroxypyridinium-und Imidazolium … Google Scholar 👨‍🔬 O Moers, K Wijaya, T Hamann, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung B 56 (10), 1052-1062, 2001	2001
191	Polysulfonylamine, CXIX Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Ein antidromes Achtringmuster als robustes supramolekulares Synthon-Drei prototypische … Google Scholar 👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung B 54 (11), 1441-1449, 1999	1999
192	Polysulfonylamines. CVI. 1, 4, 7, 10, 13, 16-Hexaoxacyclooctadecane–Dimethyl Sulfoxide–Bis (4-fluorophenylsulfonyl) amine (1/2/2) Google Scholar 👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones 📚 Crystal Structure Communications 54 (11), 1707-1710, 1998	1998
193	Performance comparison of molybdenum-impregnated sulfated mesoporous silica catalysts by spray and wet impregnation in transforming used palm cooking oil into bio-jet fuel Google Scholar 👨‍🔬 AJ Saviola, MF Vebryana, W Wangsa, P Prastyo, A Syoufian, DA Saputra, ... 📚 Chemistry Africa 8 (4), 1539-1556, 2025	2025
194	Unlocking the potential of converting non-edible oils into sustainable jet fuel-range hydrocarbons using simply prepared nickel-or molybdenum-promoted zirconia catalysts Google Scholar 👨‍🔬 AJ Saviola, K Wijaya, RA Fitria, SW Chang, B Ravindran, AK Amin, ... 📚 Sustainable Chemistry for Climate Action, 100126, 2025	2025
195	Upcycling secondary nickel from spent nickel-manganese-cobalt (NMC) batteries as a nanocatalyst on sulfated natural zeolite for converting LDPE plastic waste into jet-fuel … Google Scholar 👨‍🔬 A Bhagaskara, K Wijaya, W Trisunaryanti, DA Saputra, A Agustanhakri, ... 📚 Next Materials 9, 101107, 2025	2025
196	Representative modeling of MXene-based hybrid nanocomposites for catalytic hydrogen evolution reactions: a comprehensive review Google Scholar 👨‍🔬 L Kabir, K Wijaya, J Li, J Unruangsri, WC Oh 📚 Sustainable Energy & Fuels 8 (24), 5672-5710, 2024	2024
197	Sulfuric acid-activated Indonesian natural bentonite as solid acid catalysts in microwave-protocol nitrobenzene synthesis Google Scholar 👨‍🔬 ZL Ardelia, AJ Saviola, K Wijaya, MF Pradipta, H Ismail, B Budhijanto, ... 📚 Iranian Journal of Catalysis 14 (4), 1-9, 2024	2024
198	Dual metal NiMo dispersed on silica derived from rice husk ash as a catalyst for hydrocracking of used palm cooking oil into liquid biofuels Google Scholar 👨‍🔬 K Wijaya, RDP Setyono, RA Pratika, E Heraldy, A Suseno, L Hakim, ... 📚 Communications in Science and Technology 9 (2), 219-226, 2024	2024
199	Activity and Selectivity of Mesoporous Silica Catalyst for Hydrocracking Process of Used Palm Oil into Biogasoline Google Scholar 👨‍🔬 A Suseno, K Wijaya, E Heraldy, L Hakim, WD Saputri, G Gunawan, ... 📚 Indonesian Journal of Chemistry 23 (2), 285-297, 2023	2023
200	Nanosulfated Silica as a Potential Heterogeneous Catalyst for the Synthesis of Nitrobenzene Google Scholar 👨‍🔬 K Amri, A Sabilladin, RA Pratika, A Sudarmanto, H Ismail, MF Lestari, ... 📚 Korean Journal of Materials Research 33 (7), 265-272, 2023	2023
201	Effect of sulfation on physicochemical properties of ZrO2 and TiO2 nanoparticles Google Scholar 👨‍🔬 K Wijaya, RA Pratika, ER Fitri, PF Prabani, Y Candrasasi, WD Saputri, ... 📚 Korean Journal of Materials Research 32 (3), 125-131, 2022	2022
202	Application of Quantitative Structure-Property Relationship (QSPR) Models for the Predictions of Critical Micelle Concentration of Gemini Imidazolium Surfactants Google Scholar 👨‍🔬 E Setiawan, Mudasir, K Wijaya 📚 IOP Conference Series: Materials Science and Engineering 742 (1), 012022, 2020	2020
203	Kinetics adsorption of heavy oil spills in rivers on magnetite-(CTAB-montmorillonite) adsorbent Google Scholar 👨‍🔬 S Hilma Siregar, K Wijaya, E Sri Kunarti, A Syoufian, Suyanta 📚 IOP Conference Series: Materials Science and Engineering 509 (1), 012136, 2019	2019
204	Konversi Gliserol menjadi Polihidroksibutirat dengan Menggunakan Bakteri Eschericia coli Google Scholar 👨‍🔬 EF Rahayu, W Trisunaryanti, K Wijaya 📚 Indonesian Journal of Chemical Science 6 (3), 287-293, 2017	2017
205	Theoretical study of adsorption and dissociation of NH3 on pentanuclear Fe(111) surface Google Scholar 👨‍🔬 G Purwiandono, Triyono, K Wijaya 📚 IOP Conference Series: Materials Science and Engineering 107 (1), 012068, 2016	2016
206	Effect of sulfuric acid concentration of bentonite and calcination time of pillared bentonite Google Scholar 👨‍🔬 A Mara, K Wijaya, W Trisunaryati, Mudasir 📚 AIP Conference Proceedings 1725 (1), 020042, 2016	2016
207	Computer aided design of molecular imprinted polymer for selective recognition of capsaicin Google Scholar 👨‍🔬 I Tahir, K Wijaya, S Islam, MN Ahmad 📚 Indonesian Journal of Chemistry 14 (1), 85-93, 2014	2014
208	Hubungan Kuantitatif Struktur Elektronik dan Aktivitas Anti Tumor Senyawa Turunan Amino Pirimido Isokuinolin Kuinon Dengan Pendekatan Regresi Komponen Utama Google Scholar 👨‍🔬 A Saputra, K Wijaya, I Tahir 📚 Chemistry Progress 6 (1), 10-17, 2013	2013
209	QSAR study of flavone/flavonol analogues as the antiradical compounds based on Hansch analysis Google Scholar 👨‍🔬 I Tahir, K Wijaya, B Purwono, D Widianingsih 📚 Indonesian Journal of Chemistry 3 (1), 48-54, 2010	2010
210	Preparation and Catalytic Activity for Isopropyl Benzene Cracking Of Co, Mo And Co/Mo-Al 2 O 3-Pillared Montmorillonite Catalysts Google Scholar 👨‍🔬 H Hasanudin, K Wijaya, B Santoso 📚 Indonesian Journal of Chemistry 9 (2), 189-194, 2009	2009
211	Analisis Spektra Transisi Elektronik Senyawa Tabir Surya Maa's-gly pada Konfigurasi Dimer dan Konfigurasi Solut-etanol Google Scholar 👨‍🔬 I Tahir, K Wijaya, R Roto, A Ahmadi 📚 Berkala Ilmiah MIPA 17 (2), 242831, 2007	2007
212	Polysulfonylamine, CLIX [1]. A variety of supramolecular synthons in two molecular complexes of di (4-halobenzenesulfonyl) amines with oxygen bases Google Scholar 👨‍🔬 T Hamann, K Wijaya, O Moers, A Blaschette, PG Jones 📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 57 …, 2002	2002
213	Polysulfonylamines, CXXVII-Hydrogen bonding in crystalline onium dimesylamides: A robust eight-membered ring synthon as a component in three-dimensional hydrogen bonding patterns Google Scholar 👨‍🔬 K Wijaya, O Moers, D Henschel, A Blaschette, PG Jones 📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 55 (8 …, 2000	2000
214	Polysulfonylamine, CXII. Neues aus der Festkörperchemie der 2-Pyridone: Isolierung und Röntgenstrukturen von Bis (2-pyridon) hydrogen (I)-und Bis (6-methyl-2-pyridon) hydrogen … Google Scholar 👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung B 54 (5), 643-648, 1999	1999
215	Polysulfonylamine, CXVII Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Sechs systematisch variierte sek.-Ammonium-dimesylamide mit sechs verschiedenen null-, ein-oder … Google Scholar 👨‍🔬 O Moers, K Wijaya, D Henschel, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung B 54 (11), 1420-1430, 1999	1999
216	Investigation of Reaction Mechanism in Selective Citric Acid Leaching of Ni and Co from NMC Cathodes via Real Time Raman Spectroscopy and RSM Optimization Google Scholar 👨‍🔬 A Bhagaskara, DA Saputra, W Trisunaryanti, K Wijaya, K Rozana, ... 📚 Journal of the Indian Chemical Society, 102410, 2026	2026
217	Valence State-Dependent Catalytic Behavior of Ni and Co in NiCo/Activated Carbon Derived from Spent Li-ion Batteries for Biojet Fuel Production Google Scholar 👨‍🔬 A Bhagaskara, W Trisunaryanti, K Wijaya, AM Tazkia, DA Saputra, ... 📚 Journal of the Indian Chemical Society, 102413, 2026	2026
218	Modification of mesoporous zirconia using phosphoric acid and calcium oxide as a bifunctional nano-catalyst for one-pot conversion of used palm cooking oil into biodiesel Google Scholar 👨‍🔬 EC Sambara, AJ Saviola, A Syoufian, RA Fitria, A Mumtaziyah, K Rozana, ... 📚 Next Materials 9, 101147, 2025	2025
219	Fixing silicotungstic acid onto activated bentonite assisted by ultrasonic waves and its application as a solid acid catalyst for levulinic acid esterification into butyl … Google Scholar 👨‍🔬 B Wiyantoko, AJ Saviola, AS Hutama, I Fatimah, L Hauli, WC Oh, ... 📚 Inorganic Chemistry Communications, 115721, 2025	2025
220	Hydroconversion of Crude Palm Oil Over Highly Dispersed Porous Silica Modified Zirconium Nitride: Effect of EDTA and KHF Template Google Scholar 👨‍🔬 WR Asri, H Hasanudin, K Wijaya 📚 Silicon 16 (1), 83-97, 2024	2024
221	Hydrodeoxygenation of refined palm kernel oil into bioavtur using spray-dry impregnated activated carbon supported-Mo catalysts Google Scholar 👨‍🔬 W Trisunaryanti, K Wijaya, I Kartini, S Purwono, A Mara 📚 Transdisciplinary Research and Education Center for Green Technologies …, 2024	2024
222	Toward Advanced QM/MM MD Simulations of Solid–Liquid Interfaces–Adsorption and Proton Transfer of Multilayer Water on R-TiO2(001) Google Scholar 👨‍🔬 M Saleh, H Hi Djumat, K Wijaya, TS Hofer 📚 The Journal of Physical Chemistry C 128 (23), 9766-9775, 2024	2024
223	Modification of nanozirconia with sulfuric acid and calcium oxide as heterogeneous catalysts for biodiesel production from used coconut cooking oil Google Scholar 👨‍🔬 AI Agipa, WD Saputri, A Syoufian, S Sudiono, A Budiman, MF Lestari, ... 📚 Moroccan Journal of Chemistry 11 (3), J. Chem. 11 N° 3 (2023) 854-870, 2023	2023
224	Comparative study of low-grade crude coconut oil esterification over SO4/ZrO2 and SO4/TiO2 catalysts Google Scholar 👨‍🔬 K Wijaya, L Hauli, PF Prabani, Y Candrasasi, ER Fitriand 📚 AIP Conference Proceedings 2958 (1), 030001, 2023	2023
225	Magnetic and ultrasonic integrated photocatalytic hydrogen evolution effects with Nanosize CoOCu2OZnO and TiO2 decorated on reduced graphene oxide Google Scholar 👨‍🔬 Y Areerob, Z Meng, K Ullah, K Wijaya, Z Otgonbayar, WC Oh 📚 Materials Research Bulletin 168, 112483, 2023	2023
226	Synthesis of Coconut Oil-based Sodium Methyl Ester Sulfonate for the Application of Enhanced Oil Recovery Google Scholar 👨‍🔬 KW Feda Virgin Alfauziah, Fairuz Jannah Mardhiyah, Asma Nadia 📚 J.Idn.Chem.Soc 3 (1), 68-72, 2020	2020
227	Indonesian Modified Clay for Dye Waste Treatment Google Scholar 👨‍🔬 I Sumarlan, I Fatimah, K Wijaya 📚 Acta Chimica Asiana 3 (1), 122-126, 2020	2020
228	Synthesis and Characterization of Natural Ca (OH) 2/KF Superbase Catalyst for Biodiesel Production from Palm Oil Google Scholar 👨‍🔬 IF Nurcahyo, K Wijaya, A Budiman, YH Taufiq-Yap 📚 Oriental Journal of Chemistry 34 (2), 750, 2018	2018
229	Bioetanol sekala UMKM dan Home Insudtri Google Scholar 👨‍🔬 K Wijaya 📚 Pusat Energi Universitas Gajah Mada. diakseh dari https://pse. ugm. ac. id …, 2018	2018
230	Sintesis Dan Karakterisasi Fotokatalis Tio2 Montmorilonit Terpilar Alumina Google Scholar 👨‍🔬 I Sumarlan, I Fatimah, K Wijaya 📚 Jurnal Pijar Mipa 11 (2), 2016	2016
231	Electrodeposition of PbO2 on Ti substrate in alkaline solution: Influence of fluoride Ions Addition Google Scholar 👨‍🔬 A Mukimin, K Wijaya, A Kuncaka 📚 Asian Journal of Chemistry 25 (7), 3961, 2013	2013
232	Preparation of Biodiesel from Nyamplung Oil (Calophyllum Inophyllum Linn Oil) Using H-Zeolite and NaOH as the Catalyst Google Scholar 👨‍🔬 K Wijaya, A Syoufian, M Ainuri 📚 2nd International Conference on Chemical Sciences Proceeding, Yogyakarta, 2010	2010
233	Pemanfaatan Katalis Ni/Zeolit Pada Hidrogenasi Katalitik Etil Palmitat Menjadi Setil Alkohol Google Scholar 👨‍🔬 D Kartika, T Triyono, K Wijaya, DSPHDS PH 📚 Molekul 5 (2), 83-88, 2010	2010
234	Hydrotalcite-Like Synthesis Using Magnesium from Brine Water Google Scholar 👨‍🔬 E HERALDY, SRIJS TRIYONO, K WIJAYA, D PRASASTI, G SAVITRI, ... 📚 Proceedings of the 2009 International Conference on Chemical, Biological and …, 2009	2009
235	Prediksi Tipe Aktivitas Senyawa Tabir Surya Homosalat Berdasarkan Analisis Spektra Transisi Elektronik Pada Konfigurasi Bentuk Dimer dan Solut-Solven Google Scholar 👨‍🔬 I Tahir, K Wijaya, A Ahmadi 📚 Seminar Nasional Kimia XVIII, Yogyakarta 10, 2008	2008
236	Analisis In Silico Senyawa Tabir Surya Alkil Sinamat Berdasarkan Perhitungan Transisi Elektronik dengan Metoda ZINDO/s Google Scholar 👨‍🔬 I Tahir, K Wijaya, T Subarni, TD Wahyuningsih 📚 Jurnal Farmasi Sains dan Komunitas 2, 230-240, 2004	2004
237	Pemodelan Molekul Senyawa Mycosporine-Like Amino Acids (MAAs-LIKE) sebagai Senyawa Penyerap Sinar UV Google Scholar 👨‍🔬 I Tahir, K Wijaya, II Falah, R Damayanti 📚 Prosiding Seminar Nasional Hasil Penelitian MIPA, Fakultas MIPA Universitas …, 2004	2004
238	Hubungan Kuantitatif Antar Struktur Molekul dan Titik Leleh dari Berbagai Senyawa Organik Google Scholar 👨‍🔬 I Tahir, K Wijaya, MU Yahya 📚 Indonesia Journal of Chemistry 2 (2), 83-90, 2002	2002
239	Polysulfonylamine, CLI [1]. Starke und schwache Wasserstoffbrücken in den Kristallstrukturen von 8-Hydroxychinolinium-und 8-Aminochinolinium-dimesylamid/Polysulfonylamines, CLI … Google Scholar 👨‍🔬 D Henschel, O Moers, K Wijaya, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung B 57 (5), 524-533, 2002	2002
240	Zr–Hf separation of zirconium oxychloride products using Tributyl Phosphate (TBP) in kerosene Google Scholar 👨‍🔬 K Rozana, AK Dewi, H Poernomo, SA Ningtyas, K Wijaya 📚 Journal of the Indian Chemical Society 102 (4), 101627, 2025	2025
241	Pillared Bentonite Materials as Potential Solid Acid Catalyst for Diethyl Ether Synthesis: A Brief Review Google Scholar 👨‍🔬 P Wahyuningsih, K Wijaya, AS Hutama, AJ Saviola, I Purnama, WC Oh, ... 📚 Korean Journal of Materials Research 34 (5), 223-234, 2024	2024
242	Microwave assisted palm oil biodiesel production using KOH/ZrO2-Bentonite as catalyst Google Scholar 👨‍🔬 Y Utubira, K Wijaya, Triyono, ES Kunarti 📚 AIP Conference Proceedings 2642 (1), 050001, 2023	2023
243	Component, Formulation and Regulatory of Sunscreen Materials: A Brief Review Google Scholar 👨‍🔬 FO Hariani, MA Jerusalem, I Tahir, M Utami, WC Oh, K Wijaya 📚 Korean Journal of Materials Research 33 (3), 87-94, 2023	2023
244	Synthesis and Catalytic Performance of Ni/Silica Pillared Clay on HDPE Plastic Hydrocracking to Produce Liquid Hydrocarbons as Fuel Google Scholar 👨‍🔬 D Darwanta, W Trisunaryanti, K Wijaya, S Purwono 📚 Iranian Journal of Catalysis 13 (2), 2023	2023
245	Lump Kinetic Method in Solving Kinetic Problems and Cracking Reaction Mechanism: A Review Google Scholar 👨‍🔬 H Hasanudin, WR Asri, K Wijaya 📚 IRANIAN JOURNAL OF CATALYSIS 12 (2), 115-125, 2022	2022
246	Nanocatalysts of sulfated zirconia and calcium oxide/zirconia for microwave-assisted biodiesel synthesis from castor oil Google Scholar 👨‍🔬 RZ Andiena, K Wijaya, A Syoufian 📚 Materials Science Forum 1067, 167-176, 2022	2022
247	Synthesis of titanium oxide catalyst with gold nanoparticle as a dopant for ethanol dehydration application Google Scholar 👨‍🔬 S Mulijani, R Ismail, K Wijaya, A Patah, AC Wibowo 📚 International Journal of Renewable Energy Research 12 (4), 1831-1836, 2022	2022
248	QSAR-based design of potent betulinic acid derivatives as HIV maturation inhibitors. CMUJ Google Scholar 👨‍🔬 I Arief, HD Pranowo, M Mudasir, K Wijaya 📚 Nat. Sci 20 (1), e2021010, 2021	2021
249	Synthesis and application of nanolayered and nanoporous materials Google Scholar 👨‍🔬 K Wijaya, E Heraldy, L Hakim, A Suseno, PL Hariani, M Utami, ... 📚 ICS Physical Chemistry 1 (1), 1-1, 2021	2021
250	Kimia Kuantum Untuk Perekayasa Nanomaterial Google Scholar 👨‍🔬 K Wijaya, A Syoufian, I Tahir, AS Hutama 📚 UGM PRESS, 2021	2021
251	Preparation of Calcium Oxide/Zeolite Nanocomposite and its Application to Improve the Quality of Patchouli Oil Google Scholar 👨‍🔬 LH KARNA WIJAYA, MAISARI UTAMI, AKHMAD SYOUFIAN 📚 Key Engineering Material 849 (-), 119-124, 2020	2020
252	Synthesis and Characterization of Diethanolamide (Surfactant) from Cao/Zeolite-Catalysed Used Cooking Oil Google Scholar 👨‍🔬 W Lusiana, A Nadia, S Sudiartono, PL Hariani, A Setyopratiwi, K Wijaya 📚 Journal of the Indonesian Chemical Society 3 (2), 81, 2020	2020
253	Physico-Chemical Properties of Nano ZrO2-Pillared Bentonite with Nickel as Supporting Metal Google Scholar 👨‍🔬 M Mirzan, A Syoufian, K Wijaya 📚 Nano Hybrids and Composites 30, 9-17, 2020	2020
254	Synthesis and characterization of Ni-promoted zirconia pillared bentonite Google Scholar 👨‍🔬 M Mirzan, K Wijaya, II Falah, W Trisunaryanti 📚 Journal of Physics: Conference Series 1242 (1), 012013, 2019	2019
255	Studi teoritis senyawa turunan kalkon hidroksi sebagai sensor kimia berbagai anion Google Scholar 👨‍🔬 F Perdana, K Wijaya, R Armunanto 📚 Jurnal Kimia Riset 3, 95-101, 2018	2018
256	Perengkahan Katalitik terhadap Minyak Hasil Pirolisis Plastik Ldpe (Low Density Polyehtylene) Menggunakan Katalis Cr-Zeolit Google Scholar 👨‍🔬 M Anshori 📚 Skripsi, 2017	2017
257	Study of the acidic properties of ZrO2-pillared bentonite Google Scholar 👨‍🔬 A Suseno, Priyono, K Wijaya, W Trisunaryanti 📚 IOP Conference Series: Materials Science and Engineering 107 (1), 012040, 2016	2016
258	Pembuatan dan Karakterisasi Kompon Karet Cair Berbasis Lateks Pekat dan Asap Cair Tempurung Kelapa Google Scholar 👨‍🔬 TD Sutanto, M DRS 📚 Universitas Gadjah Mada, 2015	2015
259	Identification of Antibacterial Compound from Extract Coconut Shell Liquid Smoke Google Scholar 👨‍🔬 J Lombok, B Setiaji, W Trisunaryanti, K Wijaya 📚 International Journal of Applied Chemistry 10 (2), 141-151, 2014	2014
260	Synthesis of Zn (II)/silica by sol-gel method as an antibacterial material against Escherichia coli and Staphylococcus aureus Google Scholar 👨‍🔬 D Anggraini, K Wijaya 📚 Berkala Ilmiah MIPA 23 (2), 241230, 2014	2014
261	Pengaruh Perlakuan Temperatur pada Sintesis Bentonit Terpilar Al2O3 terhadap Karakternya dan Aplikasinya Sebagai Katalis dalam Reaksi Esterifikasi Google Scholar 👨‍🔬 P Wahyuningsih, K Wijaya, W Trisunaryanti 📚 JURUTERA-Jurnal Umum Teknik Terapan 1 (02), 24-28, 2014	2014
262	Karakterisasi dan Uji Aktivitas Katalis Mordenit dan Zeolit-Y Pada Hidrorengkah Ban Bekas menjadi Fraksi Bahan Bakar Google Scholar 👨‍🔬 W Trisunaryanti, KW Triyono, AB Majid, Y Priastomo, E Febriyanti, ... 📚 Prosiding Seminar Nasional Kimia Unesa, 2012	2012
263	bio fuel dari Biomassa Google Scholar 👨‍🔬 K Wijaya 📚 Pusat Studi Energi Universitas Gajah Mada, 2011	2011
264	Synthesis and characterization of modified Ti/[alpha]-Pb [O. sub. 2] nanoporous electrode as an active material on positive electrode Google Scholar 👨‍🔬 A Mukimin, K Wijaya, A Kuncaka 📚 International Journal of Applied Chemistry 7 (3), 245-259, 2011	2011
265	Determination of many-body effect of [Co (NH 3) n] 2+(n= 1–6) complexes base on abinitio calculations [J] Google Scholar 👨‍🔬 HD Pranowo, K Wijaya, B Setiaji, RS Janu 📚 Indonesian Journal of Chemistry 2 (1), 1-7, 2010	2010
266	Controlling Factor In Alumina Pillared Saponite and Alumina Pillared Montmorillonite Synthesis Google Scholar 👨‍🔬 I Fatimah, N Narsito, K Wijaya 📚 Indonesian Journal of Chemistry 9 (1), 5-12, 2010	2010
267	Asam Padat Berbasis Montmorilonit sebagai Katalis dalam Proses Pembuatan Biodiesel dari Minyak Jelantah Google Scholar 👨‍🔬 K Wijaya 📚 Workshop advanced material, Fakultas MIPA Universitas Gajah Mada, 2009	2009
268	Kajian Pengaruh Temperatur Dan Kecepatan Pengadukan Terhadap Konversi Biodiesel dari Minyak Sawit menggunakan Abu Tandan Kosong Sawit sebagai Katalis Google Scholar 👨‍🔬 A Luthfiyati 📚 Makalah Seminar Nasional Kimia XVIII. Yogyakarta, 2008	2008
269	Pemodelan Molekul Senyawa Berpotensi Sunscreen Berbasis Struktur Molekul Mycosporine-Like Amino Acids-Glycine Google Scholar 👨‍🔬 I Tahir, K Wijaya, R Damayanti 📚 Austrian Indonesian Centre for Computational Chemistry (AIC), FMIPA …, 2007	2007
270	MODIFIKASI PORI ZEOLIT ALAM WONOSARI MENGGUNAKAN MOLEKUL PENGARAH STRUKTUR DAN APLIKASINYA SEBAGAI PADATAN PENDUKUNG IMOBILISASI SEL KHAMIR Phaffia rhodozyma PENGHASIL … Google Scholar 👨‍🔬 A Suseno, E Kusdiyantini, M Mudasir, K Wijaya 📚 UNIVERSITAS DIPONEGORO, 2005	2005
271	Aplikasi Pemisahan Data secara Acak pada Analisis Hubungan Kuantitatif Struktur Elektronik dan Aktivitas Senyawa Indolialkilamina Google Scholar 👨‍🔬 I Tahir, K Wijaya, ESY Putri 📚 Seminar Nasional Hasil Penelitian Farmasi, 190-200, 2004	2004
272	Sintesis Katalis Mesopori Lempung Terpilar Sol Silika Berpengemban Ni dan Ti dari Lempung Alam Boyolali untuk Hidrorengkah Fraksi Berat Minyak Bumi Minas Google Scholar 👨‍🔬 A Darmawan, S SRIATUN, Y ARRYANTO, K WIJAYA 📚 UNIVERSITAS DIPONEGORO, 2004	2004
273	STUDY OF DOUBLE PROTONS MIGRATION MECHANISM IN SUPRAMOLECULAR STRUCTURES OF ACETIC ACID-WATER AND ACETIC ACID-AMMONIA BY AB INITIO METHOD Google Scholar 👨‍🔬 K Wijaya, I Tahir, H Harnowo 📚 Indonesian Journal of Chemistry 3 (2003), 2003	2003
274	Sintesis lempung Montmorillonit terpilar Fe2O3 dan kajian sifat-sifat fisiknya Google Scholar 👨‍🔬 IAG Widihati 📚 Universitas Gadjah Mada, 2002	2002
275	Polysulfonylamine, CLXI. Ein neuartiges 1, 2-Dihydroimidazochinolinylium-Kation: Zufällige Isolierung und Kristallstruktur des entsprechenden Dimesylamids Polysulfonylamines … Google Scholar 👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung B 57 (11), 1277-1281, 2002	2002
276	Sintesis Lempung Monmorilonit Terpilar Berbahan Baku Bentonit Alam Indonesia dan Aplikasinya Sebagai Katalis, Bahan Foto-Fungsional dan Adsorben Google Scholar 👨‍🔬 K Wijaya 📚 Universitas Gadjah Mada, Yogyakarta, 2000	2000
277	Polysulfonylamine, CXXV [1]. Neue Komplexe von Disulfonylaminen mit Kronenethern-im voraus entworfen oder zufällig entdeckt/Polysulfonylamines, CXXV [1]. New Complexes of … Google Scholar 👨‍🔬 D Henschel, K Wijaya, O Moers, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung B 55 (3-4), 299-316, 2000	2000
278	Polysulfonylamine, CXXVII [1] Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Ein robustes Achtring-Synthon als Bestandteil dreidimensionaler Wasserstoffbrückenmuster … Google Scholar 👨‍🔬 K Wijaya, O Moers, D Henschel, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung B 55 (8), 753-762, 2000	2000
279	Polysulfonylamines, CXII. A Novel Solid-State Aspect of 2-Pyridones: Isolation and X-Ray-, Structures of Bis (2-pyridone) hydrogen (I) and Bis (6-methyl-2-pyridone) hydrogen (I … Google Scholar 👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones 📚 ZEITSCHRIFT FUR NATURFORSCHUNG B 54, 643-648, 1999	1999
280	Polysulfonylamine, XCVII [1] Di (organosulfonyl) amine und ihre konjugierten Anionen als simultane Baugruppen in zwei supramolekularen Strukturen/Polysulfonylamines, XCVII [1 … Google Scholar 👨‍🔬 D Henschel, K Wijaya, O Moers, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung B 52 (10), 1229-1236, 1997	1997
281	Triyono 2010 Studi Pendahuluan Pemanfaatan Limbah Desalinasi Untuk Pembuatan Mg/Al Hydrotalcite-Like J Google Scholar 👨‍🔬 E Heraldy, D Prasasti, K Wijaya, SJ Santosa 📚 Bumi Lestari 12, 16-23, 0
282	L., dan Tahir, l., 2008. Ekstraksi kalium dari abu tandan kosong sawit sebagai katalis pada reaksi transesterifikasi minyak sawit Google Scholar 👨‍🔬 MI Yoeswono, W Karna 📚 Bulletin of Chemical Reaction Engineering and Catalyst 3, 14-20, 0
283	The effect of sulfur doping on the ZrTiO4 (111) surface toward the CO2RR to chemically valuable products: a density functional theory study. Google Scholar 👨‍🔬 S Aziz, LA Marlina, WD Hilmy, NPS Bila, P Chandra, K Wijaya, ... 📚 Physical Chemistry Chemical Physics: PCCP 28 (8), 5455-5467, 2026	2026
284	Effect of Nickel Incorporation on Nitrogen-Doped Titania/Zirconia Nanocomposites for Enhanced Visible-Light Photocatalytic Degradation of Phenol Google Scholar 👨‍🔬 A Syoufian, AJ Saviola, RR Janah, R Afifah, K Wijaya, R Kurniawan, ... 📚 Bulletin of Chemical Reaction Engineering & Catalysis 21 (2), 349-361, 2026	2026
285	Distribution and Habitat Characterization of Non-Edible Plants with Potential as Biodiesel Feedstock on Java Island, Indonesia Google Scholar 👨‍🔬 S Sunarta, IN FITRIANI, R FITRIANI, CK YOGA, M UTAMI, WC OH, ... 📚 Journal of the Korean Wood Science and Technology 53 (4), 389-400, 2025	2025
286	A Green and Sustainable Approach for Converting Laboratory Latex Glove Waste into Liquid Fuel via Microwave-assisted Pyrolysis Google Scholar 👨‍🔬 W Wangsa, AJ Saviola, L Hauli, W Trisunaryanti, P Chandra, RA Fitria, ... 📚 Bulletin of Chemical Reaction Engineering & Catalysis 20 (3), 493-504, 2025	2025
287	biomedical applications of novel MXene nanocomposites Google Scholar 👨‍🔬 AA Gawai, SP Jain, P Nuengmatcha, MV Le, L Kabir, S Srikrajang, ... 📚 Journal of Materials Science, 1-34, 2025	2025
288	Eco-friendly CaO catalyst from waste blood cockle shells activated by citric acid for efficient biodiesel production from used palm oil Google Scholar 👨‍🔬 PN Mahayuwati, W Trisunaryanti, K Wijaya, FP Normayanti 📚 Environmental Science and Pollution Research 32 (57), 30930-30943, 2025	2025
289	Facile synthesis of g-C3N4/Fe3O4/PANI ternary nanocomposite for supercapacitor and photocatalytic applications Google Scholar 👨‍🔬 L Zhixuan, MA Ashwini, D Susanti, S Sagadevan, B Ninwong, ... 📚 Diamond and Related Materials, 113277, 2025	2025
290	Biodiesel production with DES (deep eutectic solvent) catalyst using used cooking oil feedstock through two-stage transesterification process Google Scholar 👨‍🔬 F Hadiah, NKD Lestari, MA Putri, B Santoso, R Rahmawati 📚 Jurnal Teknik Kimia 30 (1), 24-33, 2024	2024
291	Sains Material: Struktur, Sifat, Sintesis dan Aplikasinya Google Scholar 👨‍🔬 K Wijaya, L Hauli, AK Amin, MUA Nadia 📚 Deepublish, 2024	2024
292	Separation of Zirconium and Hafnium from Zirconium Oxychloride (ZOC) Synthesis of Kalimantan Zircon Sand Concentrate Using Extraction Method with tributyl phosphate (TBP … Google Scholar 👨‍🔬 K Rozana, AK Dewi, H Poernomo, WC Oh, K Wijaya 📚 Korean Journal of Materials Research 34 (5), 247-253, 2024	2024
293	Atmospheric Degradation Mechanism of Isoamyl Acetate Initiated by OH Radicals and Cl Atoms Revealed by Quantum Chemical Calculations and Kinetic Modeling Google Scholar 👨‍🔬 AS Hutama, LA Marlina, MB Akram, K Wijaya, RM Sari, WD Saputri 📚 The Journal of Physical Chemistry A 128 (39), 8483-8500, 2024	2024
294	Biofuel production from palm oil via catalytic hydrocracking over modified-zirconia catalysts Google Scholar 👨‍🔬 M Utami, R Safitri, MF Pradipta, K Wijaya 📚 3rd INTERNATIONAL SEMINAR ON SCIENCE AND TECHNOLOGY (ISSTEC) 2021: Science …, 2023	2023
295	Recent Progress on Sulfated Nanozirconia as a Solid Acid Catalyst in the Hydrocracking Reaction. Catalysts 2022, 12, 191 Google Scholar 👨‍🔬 SJ Sekewael, RA Pratika, L Hauli, AK Amin, M Utami, K Wijaya 📚 Contemporary Solutions for Advanced Catalytic Materials with a High Impact …, 2022	2022
296	Theoretical studies on structure and dynamics of anatase TiO2 (101)/H2SO4/H2O interface in the early stage of titania sulfation Google Scholar 👨‍🔬 DN Afifah, LA Marlina, AS Hutama, K Wijaya 📚 Structural Chemistry 33 (4), 1341-1354, 2022	2022
297	Aluminosilicate Based Solid Acid Catalyst: Effect of Calcination Time, OH/Al Ratio and Keggin Ion Concentration on its Preparation Google Scholar 👨‍🔬 A Mara, RA Pratika, K Wijaya, W Trisunaryanti, M Mudasir, H Ismail, ... 📚 Advances in Science and Technology 115, 1-8, 2022	2022
298	The Effect of HNO3 and/or NaOH Treatments on Characteristics of Mordenite Google Scholar 👨‍🔬 W Trisunaryanti, K Wijaya, D Suryani, U Chasanah 📚 Advances in Geopolymer-Zeolite Composites-Synthesis and Characterization, 2021	2021
299	Solid State Mixing Preparation of CaO/Bentonite Nanocomposite and its Application to Improve the Quality of Patchouli Oil Google Scholar 👨‍🔬 K Wijaya, M Utami, A Syoufian, AI Murifal 📚 Advanced Materials Research 1162, 21-26, 2021	2021
300	In Silico Prediction of Betulinic Acid Derivatives’ Cytotoxicity: Relationship between Topological Descriptors and CC50 Value Google Scholar 👨‍🔬 I Arief, HD Pranowo, M Mudasir, K Wijaya 📚 Key Engineering Materials 884, 282-289, 2021	2021
301	Generic QSPR study for predicting critical micelle concentration of gemini cationic surfactants using the online chemical modeling environment (OCHEM) Google Scholar 👨‍🔬 E Setiawan, K Wijaya, M Mudasir 📚 AIP Conference Proceedings 2349 (1), 020027, 2021	2021
302	QSAR-based design of the more potent betulinic acid derivatives as HIV maturation inhibitor. Google Scholar 👨‍🔬 I Arief, HD Pranowo, M Mudasir, K Wijaya 📚 CHIANG MAI UNIVERSITY JOURNAL 20 (1), 2020	2020
303	Peran Riset Biofuel Sebagai Energi Baru Dan Terbarukan Untuk Penguatan Literasi Kimia Di Indonesia Google Scholar 👨‍🔬 K Wijaya 📚 UGM, 2017	2017
304	Viskositas Produk Hidrocracking Crude Oil Batubara Dengan Katalis Ni/Mo-Montmorillonit Terpilar TiO2 Google Scholar 👨‍🔬 H Hasanudin, K Wijaya, A Rahmad, W Trisunaryanti 📚 Jurnal Penelitian Sains 11 (2), 2017	2017
305	Sintesis Cu (II)/Silika dengan Metode Sol-Gel Sebagai Antibakteri Terhadap Escherichia coli dan Staphylococcus aureus Google Scholar 👨‍🔬 L Tania, K Wijaya, W Trisunaryanti 📚 Berkala Ilmiah MIPA 24 (2), 243018, 2016	2016
306	Effect of Immersion in Cu (II)-Natural Zeolite on Copper Sorption and Colour Stability of Acrylic Resins. Google Scholar 👨‍🔬 D Irnawati, W Widjijono, K Wijaya, W Asmara 📚 Asian Journal of Chemistry 27 (9), 2015	2015
307	APLIKASI METODE DFT DAN SIMULASI DINAMIKA MOLEKULER PADA KAJIAN INTERAKSI MONOMER FUNGSIONAL UNTUK DESAIN POLIMER TERCETAK R (+)-KATINON Google Scholar 👨‍🔬 A Saputra 📚 Universitas Gadjah Mada, 2014	2014
308	Zirconia-intercalated bentonite as catalyst candidate I: Preparation and characterization of [Zr4 (OH) 14 (H2O) 10] 2+ intercalated bentonite Google Scholar 👨‍🔬 K Wijaya, I Prayogo 📚 International Journal of Applied Chemistry 9 (3), 243-252, 2013	2013
309	Preparasi dan Karakterisasi Komposit Kromium Oksida-Montmorillonit Google Scholar 👨‍🔬 IMS Negara, K Wijaya, E Sugiharto 📚 Jurnal Kimia 2 (2), 93, 2008	2008
310	Polysulfonylamine, CLXVII [1]. Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Ein robustes Dreipunktmuster als Bestandteil eines 2D-, eines zweifach verwobenen 2D-und … Google Scholar 👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung B 59 (1), 17-26, 2004	2004
311	Polysulfonylamines, CXLIII. Role of Weak Hydrogen Bonds (CH… O) in the Crystal Structures of 2, 6-Dimethylpyridinium, 1-Hydroxypyridinium and Imidazolium Dimesylamide Google Scholar 👨‍🔬 O Moers, K Wijaya, T Hamann, A Blaschette, PG Jones 📚 ZEITSCHRIFT FUR NATURFORSCHUNG B 56 (10), 1052-1062, 2001	2001
312	Polysulfonylamines, CXVII [1]-Hydrogen bonding in crystalline onium dimesylamides: Six systematically varied sec-ammonium dimesylamides exhibiting six different zero-, one-, or … Google Scholar 👨‍🔬 O Moers, K Wijaya, D Henschel, A Blaschette, PG Jones 📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 54 …, 1999	1999
313	Polysulfonylamines, CXVIII-Hydrogen bonding in crystalline onium dimesylamides: Three prim.-ammonium dimesylamides exhibiting two-or three-dimensional hydrogen bond patterns Google Scholar 👨‍🔬 D Henschel, O Moers, K Wijaya, A Blaschette, PG Jones 📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 54 …, 1999	1999
314	BENZO-18-KRONE-6: ACETONITRIL (1 Google Scholar 👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung. B, A journal of chemical sciences 53 (12 …, 1998	1998
315	Polysulfonylamine, XC [1] Carbonsäure-Dimere, Wasser-Dimere und 18-Krone-6-Moleküle als Baugruppen eines supramolekularen Kettenpolymers: Darstellung und Struktur von (CH2CH2O)6 • 4H2O • 2HN(SO2C6H4-4-COOH)2 / Polysulfonylamines, XC [1 … Google Scholar 👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung B 52 (8), 997-1002, 1997	1997
316	PEMBUATAN DAN UJI FOTOAKTIVITAS KOMPOSIT Ti02-BENTONIT UNTUK DEGRADASI SENYAWA PEWARNA METILEN BIRU Google Scholar 👨‍🔬 I Tahir, K Wijaya
317	Hydrogen generation from coconut shell bio-oil via steam reforming incorporating energy–exergy analysis Google Scholar 👨‍🔬 RA Syahputra, B Wirjosentono, K Wijaya, H Susilo, DH Sinaga, S Gea
318	The Effect of Sulfur Doping on the ZrTiO₄ (111) Surface toward CO₂RR into Chemically Valuable Products: A Density Functional Theory Study Google Scholar 👨‍🔬 S Aziz, LA Marlina, NPS Bila, P Chandra, K Wijaya, AS Hutama 📚 Physical Chemistry Chemical Physics, 2026	2026
319	Controllable and tunable conductive polymer/MXene hybrid composites for biosensor applications: Recent advances, properties, and future directions Google Scholar 👨‍🔬 JD Na, S Sagadevan, R Hsu, S Srikrajang, L Kabir, K Wijaya, K Ullah, ... 📚 Materials Horizons, 2026	2026
320	Keseimbangan Kimia: Konsep dan Aplikasi Google Scholar 👨‍🔬 WT Sunaryanti, K Wijaya, A Setyopratiwi, I Tahir, S Sudiono, F Pradipta, ... 📚 Deepublish, 2026	2026
321	Sustainable ibuprofen degradation using eco-friendly CQDs/TiO2 nanocomposites from banana peels waste Google Scholar 👨‍🔬 M Utami, I Sholidhyawati, MM Musawwa, K Wijaya, SS Kim, ... 📚 Carbon Letters 36 (2), 823-839, 2026	2026
322	Hydration structure and energetic signatures of hemidirected-and holodirected-like Motifs in aqueous Pb2+: A SCAN–QMCF–MD and DLPNO–CCSD (T) study Google Scholar 👨‍🔬 N Prasetyo, K Wijaya, R Zainul, AR Wijaya, NA Siddiq 📚 Journal of Molecular Graphics and Modelling, 109353, 2026	2026
323	Biochar-Based Catalysts in Hydrogen Production: Mechanisms, Activation, and Efficiency Google Scholar 👨‍🔬 RA Syahputra, M Irvan, A Andriayani, B Wirjosentono, K Wijaya, S Sarker, ... 📚 Trends in Sciences 23 (6), 13289-13289, 2026	2026
324	Pyrolytic wood vinegar from industrial crop residues as a bio-based fungicide for Fusarium control in banana cultivation Google Scholar 👨‍🔬 I Purnama, NB Saidi, A Mutamima, NA Baharum, D Anggrayni, ... 📚 Industrial Crops and Products 242, 122909, 2026	2026
325	NaHCO₃-Assisted Synthesis of Ni-Promoted Sulfated Mesoporous Silica for the Hydrocracking of Used Cooking Oil into Biogasoline Google Scholar 👨‍🔬 K Wijaya, MF Vebryana, N Prasetyo, AJ Saviola, WD Saputri, AK Amin, ... 📚 Bulletin of Chemical Reaction Engineering & Catalysis 21 (1), 149-167, 2026	2026
326	Novel Tailoring of Ternary ZnS‐MXene‐TiO2 Nanocomposite Heterojunction and Its Tunable Electrochemical Properties With Enhanced Photocatalytic Degradation Google Scholar 👨‍🔬 L Kabir, D Kim, M Song, JD Na, YJ Joo, KY Cho, K Wijaya, WC Oh 📚 Advanced Engineering Materials 28 (11), e202502772, 2026	2026
327	Catalytic performance of sulfated SiO2, ZrO2, and TiO2 in the treatment of free fatty acids from waste cooking oil and coconut oil Google Scholar 👨‍🔬 RA Pratika, Z Nafisah, D Hermayantiningsih, SY Kalalinggi, M Irmawan, ... 📚 Reaction Kinetics, Mechanisms and Catalysis, 1-25, 2026	2026
328	Enhanced photocatalytic activity of CuO/TiO2 nanocomposites prepared via chemical and green synthesis for wastewater treatment Google Scholar 👨‍🔬 P Pamitha, KK Veni, R Kavitha, S Suresh, K Wijaya, LC Nehru 📚 Materials Chemistry and Physics 358, 132450, 2026	2026
329	Recent advances in MXene-based composite electrodes and solid-state electrolytes for enhanced mechanical, physical, and electrochemical properties for energy storage devices Google Scholar 👨‍🔬 JD Na, S Sagadevan, L Kabir, K Wijaya, K Ullah, WC Oh 📚 Journal of Energy Storage 171, 122939, 2026	2026
330	Preparation of biochar catalyst from coconut shell impregnated with nickel metal as a heterogeneous catalyst Google Scholar 👨‍🔬 RA SYAHPUTRA, B WIRJOSENTONO, K WIJAYA, A SUTIANI, ...	2025
331	EFFECT OF SOAKING AND HYDROLYSIS TIME VARIATIONS ON GELATIN CHARACTERISTICS FROM COW BONES Google Scholar 👨‍🔬 PM Pattiasina, W Trisunaryanti, K Wijaya 📚 Molluca Journal of Chemistry Education (MJoCE) 15 (1), 27-33, 2025	2025
332	Chitin and Chitosan Whisker-Reinforced Thermoplastic Biocomposites Google Scholar 👨‍🔬 FA Tanjung, I Tahir, MYR Siahaan, RA Siregar, Y Arifin, K Wijaya 📚 Biotechnological Advances in Chitin and Chitosan based Biocomposites, 151-172, 2025	2025
333	Enhanced selective Cu (II) detection using a high-performance EDTA/PVA/MWCNT-modified carbon paste electrode Google Scholar 👨‍🔬 YA Perangin Angin, K Wijaya, W Trisunaryanti, RM Sari, L Destiarti, ... 📚 Carbon Letters, 1-16, 2025	2025
334	Introducing molybdenum onto activated Lapindo mud as a reusable green catalyst for sustainable bio-jet fuel production Google Scholar 👨‍🔬 AJ Saviola, P Chandra, A Syoufian, S Sagadevan, WC Oh, WD Saputri, ... 📚 Materials Letters, 139323, 2025	2025
335	Solid Acid Catalyst Mesoporous Sulfated Zirconia with Metal Oxide Promoter and Its Application on Hydrolysis of Cellulose into Fermentable Glucose Google Scholar 👨‍🔬 A Rachmat, N Hidayati, ZA Putri, Z Fanani, K Wijaya 📚 International Journal of Renewable Energy Research (IJRER) 15 (3), 441-448, 2025	2025
336	Oxidative desulfurization of dibenzothiophene in model fuel using spray impregnated-biogenic silica-supported molybdenum oxide catalyst Google Scholar 👨‍🔬 K Wijaya, D Ariningtyas, AJ Saviola, S Sudiono, MAU Absor, WC Oh, ... 📚 Vacuum, 114736, 2025	2025
337	Leveraging nanocomposites of cobalt-nitrogen co-doped-titania immobilized on zirconia as a visible-light active photocatalyst for malachite green and phenol photodegradation Google Scholar 👨‍🔬 A Syoufian, R Afifah, IN Astuti, AJ Saviola, RA Fitria, ES Kunarti, ... 📚 Vacuum, 114823, 2025	2025
338	Synthesis and Application of Modified Waste Acropora Coral Skeletons for Pb (II) Adsorption: A Bead Adsorbent Perspective Google Scholar 👨‍🔬 AR Wijaya, R Zainul, K Wijaya, N Prasetyo, NA Siddiq 📚 South African Journal of Chemical Engineering, 2025	2025
339	Development of sulfuric acid-modified alumina-pillared bentonite for enhanced catalytic conversion of ethanol into diethyl ether Google Scholar 👨‍🔬 P Wahyuningsih, AS Hutama, AJ Saviola, WC Oh, S Sagadevan, L Hauli, ... 📚 Vacuum, 114965, 2025	2025
340	Toward Efficient Bio-jet Fuel Production via Atmospheric Hydrotreating: Insight into the Effect of Co/HZSM-5, Mo/HZSM-5, and CoMo/HZSM-5 Catalyst Arrangements Google Scholar 👨‍🔬 D Asnawati, AJ Saviola, K Wijaya, I Kartini, S Purwono, R Rodiansono, ... 📚 Arabian Journal for Science and Engineering 50 (24), 21123-21144, 2025	2025
341	First-Principles Investigation on Ethanol Oxidation Reaction over PdCu Alloy Surfaces for Direct Ethanol Fuel Cell Applications Google Scholar 👨‍🔬 P Chandra, MN Hidayah, K Wijaya, LA Marlina, AS Hutama 📚 Surface Science, 122907, 2025	2025
342	Variation in Soaking Time and Hydrolysis Time on the Extraction of Gelatin from Cow Bones Google Scholar 👨‍🔬 PM Pattiasina, W Trisunaryanti, K Wijaya 📚 ALKIMIA: Jurnal Ilmu Kimia dan Terapan 8 (2), 2024	2024
343	Supramolecular Modeling of Molecularly Imprinted Chitosan-Thiamin Using Density Functional Theory Google Scholar 👨‍🔬 I Tahir, E Yudha, MF Pradipta, AJ Saviola, RA Wahab 📚 Materials and Technologies: Computational Materials Science, Silicon-based …, 2024	2024
344	Supramolecular Modeling of Molecularly Imprinted Chitosan-Resveratrol Using Density Functional Theory Google Scholar 👨‍🔬 I Tahir, E Yudha, MF Pradipta, K Wijaya, M Mudasir, MF Vebryana, ... 📚 Key Engineering Materials 990, 103-116, 2024	2024
345	Conversion Single Reagent of n-Propanol to 1, 1-Dipropoxypropane Using Cr/Activated Carbon Catalyst Google Scholar 👨‍🔬 II Falah, K Wijaya, MF Vebryana, AJ Saviola 📚 Solid State Phenomena 365, 55-62, 2024	2024
346	Nickel Oxide-Impregnated Phosphated Silica Catalyst: Synthesis and Application for Ethanol Dehydration into Diethyl Ether (DEE) Google Scholar 👨‍🔬 MM Fatwa, AJ Saviola, MF Pradipta, RA Fitria, N Prasetyo, K Wijaya 📚 Solid State Phenomena 365, 87-97, 2024	2024
347	Nanomaterials for the Development of Electrodes Google Scholar 👨‍🔬 K Wijaya, AK Amin, L Hauli, WD Saputri, DY Lestari, AJ Saviola, RA Fitria, ... 📚 Advanced Hybrid Nanomaterials for Energy Storage, 143-174, 2024	2024
348	Latest Technologies in Solid-State Electrolytes Related to Energy Storage Applications Based on 2D MXenes Google Scholar 👨‍🔬 L Kabir, K Wijaya, WC Oh 📚 Advanced Hybrid Nanomaterials for Energy Storage, 1-41, 2024	2024
349	An Effective Synthesis of Phosphated Silica (PO4/SiO2) Catalyst and its Performance for Converting Ethanol into Diethyl Ether (DEE) Google Scholar 👨‍🔬 K Wijaya	2024
350	Non-edible Vegetable Oils: A Viable Alternative for Biodiesel Production Google Scholar 👨‍🔬 P SANTOSA 📚 Developments in Biodiesel: Feedstock, Production, and Properties 84, 60, 2024	2024
351	Preparation of Zirconium Nitride supported on SiO2 Catalyst for Vegetable Oil Conversion Google Scholar 👨‍🔬 WR Asri, H Hasanudin, K Wijaya 📚 IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) 8 (2), 98-104, 2023	2023
352	Hydrocracking of Palm Oil Into Biofuel Over Ni-Al2O3-bentonite (Aluminosilicate) Nanocatalyst Google Scholar 👨‍🔬 K Wijaya, RN Annisa, A Setyopratiwi, A Syoufian, H Hasanudin, M Utami 📚 Sustainability Engineering, 61-81, 2023	2023
353	Gasoline-range hydrocarbon production from hydrocracking of LDPE plastic waste utilizing nickel-promoted sulfated nanozirconia catalyst Google Scholar 👨‍🔬 AK Amin, W Trisunaryanti, K Wijaya 📚 AIP Conference Proceedings 2958 (1), 030002, 2023	2023
354	Preface: International Conference on Physical Chemistry Google Scholar 👨‍🔬 L Hakim, N Matubayasi, P Surawatanawong 📚 AIP Conference Proceedings 2958 (1), 010001, 2023	2023
355	Entrepreneurship Training on Product Manufacturing, Branding, and Marketing of Hand Soap Products for The Community in the Special Region of Yogyakarta Google Scholar 👨‍🔬 A Setyopratiwi, K Wijaya, W Trisunaryanti, II Falah, I Tahir, S Sudiono, ... 📚 AIJR Proceedings, 48-53, 2023	2023
356	Development of Clove Oil Processing Installation to Comply with Indonesian Nasional Standard (SNI) in Gerbosari Village Google Scholar 👨‍🔬 N Prasetyo, K Wijaya, W Trisunaryanti, II Falah, I Tahir, A Setyopratiwi, ... 📚 AIJR Proceedings, 250-255, 2023	2023
357	Diversification of Used Cooking Oil into Biodiesel as an Attempt to Increase BumDes Mangesti Sejahtera’s Revenue in Gentan Village, Baki District, Sukoharjo Regency Google Scholar 👨‍🔬 K Wijaya, W Trisunaryanti, I Tahir, NW Yuwono, D Haryono, U Fransiska, ... 📚 AIJR Proceedings, 159-167, 2023	2023
358	Oxide-Based Nanomaterials for Drug Preparation and Delivery Google Scholar 👨‍🔬 K Wijaya, WD Saputri, AK Amin, L Hauli, H Ismail, B Budhijanto, ... 📚 Bionanomaterials for Biosensors, Drug Delivery, and Medical Applications …, 2023	2023
359	5 Oxide-Based Google Scholar 👨‍🔬 K Wijaya, WD Saputri, AK Amin, L Hauli, H Ismail, B Budhijanto, ... 📚 Bionanomaterials for Biosensors, Drug Delivery, and Medical Applications, 116, 2023	2023
360	Improvement of Catalyst Activity in Methanol-to-Olefin Conversion via Metal (Sr/La) Impregnation over ZSM-5 Catalyst Google Scholar 👨‍🔬 B Budhijanto 📚 International Journal of Technology: IJ Tech, 2023	2023
361	Development of Chromium-Impregnated Sulfated Silica as a Mesoporous Catalyst in the Production of Biogasoline from Used Cooking Oil via a Hydrocracking Process Google Scholar 👨‍🔬 TS Ningrum, AJ Saviola, K Wijaya, N Prasetyo, ZL Ardelia, RA Fitria, ...	2023
362	Facile Synthesis of Various ZrO2 Phases and ZrO2-MO2 (M= Ti, Hf) by Thermal Decomposition of a Single UiO-66 Precursor for Photodegradation of Methyl Orange. Catalysts 2022, 12 … Google Scholar 👨‍🔬 INA Jannah, HF Sekarsari, S Mulijani, K Wijaya, AC Wibowo, A Patah 📚 s Note: MDPI stays neutral with regard to jurisdictional claims in published …, 2022	2022
363	Hydrocracking of LDPE Plastic Wastes into Liquid Fuel by Natural Zeolite Supported Nickel Metal Google Scholar 👨‍🔬 M Taufiqurrohaman, K Wijaya, A Nadia, SE Purba, A Syoufian 📚 Key Engineering Materials 927, 154-158, 2022	2022
364	Optimized diethanolamide surfactant production from waste cooking oil using K2CO3/zeolite catalyst Google Scholar 👨‍🔬 M Utami, SH Wicaksono, A Syoufian, K Wijaya 📚 AIP Conference Proceedings 2645 (1), 030016, 2022	2022
365	Nanoresearch sebagai Driving Force Kemajuan Sainstek di Indonesia Google Scholar 👨‍🔬 K Wijaya 📚 Menuju Indonesia Maju 2045 1, 275, 2021	2021
366	The Effect of HNO3 and/or NaOH Google Scholar 👨‍🔬 W Trisunaryanti, K Wijaya, D Suryani 📚 Advances in Geopolymer-Zeolite Composites: Synthesis and Characterization, 155, 2021	2021
367	Application of Energy-Saving Distiller for Standardized Patchouli Oil Production in Patchouli Oil SME in Kulon Progo Google Scholar 👨‍🔬 W Kurniawati 📚 Indonesian Journal of Community Engagement, 2020	2020
368	Application of biogasoline in a four-stroke motorcycle engine Google Scholar 👨‍🔬 S Sutrisna, W Karna 📚 ASEAN Journal on Science and Technology for Development 37 (2), 7, 2020	2020
369	Articles & Issues Google Scholar 👨‍🔬 A Purnama, K Wijaya, I Tahir, EA Suyono, A Budiman 📚 Korean Journal of Chemical Engineering 37 (3), 2020	2020
370	PLATINA/NANOZIRKONIA TERSULFATASI: PREPARASI, KARAKTERISASI DAN APLIKASINYA UNTUK KONVERSI LIMBAH PLASTIK LDPE MENJADI BAHAN BAKAR CAIR Google Scholar 👨‍🔬 M UTAMI 📚 Universitas Gadjah Mada, 2019	2019
371	PREPARASI KOMPOSIT CaO/ZEOLIT DAN APLIKASINYA UNTUK MENINGKATKAN MUTU MINYAK NILAM Google Scholar 👨‍🔬 L Hidayatullah 📚 Universitas Gadjah Mada, 2019	2019
372	STRUKTUR SOLVASI DAN SIFAT DINAMIKA ION Cu+ DAN Cu2+ DALAM PELARUT AMONIA CAIR DAN LARUTAN AMONIA: SIMULASI DINAMIKA MOLEKUL AB INITIO QUANTUM MECHANICAL CHARGE FIELD (QMCF) Google Scholar 👨‍🔬 WD SAPUTRI 📚 Universitas Gadjah Mada, 2019	2019
373	Studi Teoritis Senyawa Turunan Kalkon Hidroksi sebagai Chemosensor Anion Google Scholar 👨‍🔬 F Perdana, K Wijaya, R Armunanto 📚 Indonesian Journal of Chemical Science 8 (1), 47-52, 2019	2019
374	Computational Study of Hydroxy Chalcone Compound as Potential Chemosensor for Cyanide Anion Google Scholar 👨‍🔬 F Perdana, R Armunanto, K Wijaya 📚 Prosiding CELSciTech 4, 39-42, 2019	2019
375	PREPARASI KATALIS Ni/BENTONIT DAN APLIKASINYA UNTUK HIDRORENGKAH MINYAK HASIL PIROLISIS PLASTIK LDPE (LOW DENSITY POLYETHYLENE) Google Scholar 👨‍🔬 JA PUTRA 📚 Universitas Gadjah Mada, 2018	2018
376	SINTESIS KATALIS Cr/ZrO2-SO4 SECARA HIDROTERMAL DAN APLIKASINYA UNTUK HIDRORENGKAH MINYAK SAWIT MENJADI BIOFUEL Google Scholar 👨‍🔬 R SAFITRI 📚 Universitas Gadjah Mada, 2018	2018
377	SINTESIS, KARAKTERISASI DAN UJI AKTIVITAS KATALIS Ni/ZrO2-SO4 PADA REAKSI HIDRORENGKAH MINYAK KELAPA MENJADI BIOFUEL Google Scholar 👨‍🔬 NJ PUTERI 📚 Universitas Gadjah Mada, 2018	2018
378	SINTESIS SURFAKTAN NATRIUM METIL ESTER SULFONAT (Na-MES) DARI MINYAK KELAPA DENGAN OPTIMASI RASIO MOL DAN WAKTU SULFONASI Google Scholar 👨‍🔬 A Syoufian 📚 Universitas Gadjah Mada, 2017	2017
379	Sintesis dan Karakterisasi Surfaktan Dietanolamida dari Minyak Goreng Bekas Terkatalsis CaO/Zeolit Google Scholar 👨‍🔬 W Lusiana 📚 Universitas Gadjah Mada, 2017	2017
380	KATALIS HETEROGEN SO4/ZrO2 DAN Na2O/ZrO2: PREPARASI, KARAKTERISASI, DAN APLIKASINYA UNTUK KONVERSI LOW GRADE CRUDE PALM OIL MENJADI BIODIESEL Google Scholar 👨‍🔬 MF Lestari 📚 Universitas Gadjah Mada, 2017	2017
381	Material CuO/bentonit sebagai Antibakteri Escherichia coli Google Scholar 👨‍🔬 RY FATMAWATI 📚 Universitas Gadjah Mada, 2017	2017
382	PEMODELAN MOLEKUL DAN SINTESIS POLIMER TERCETAK MOLEKUL KOLESTEROL DENGAN MONOMER FUNGSIONAL ASAM ITAKONAT Google Scholar 👨‍🔬 M Karna Wijaya 📚 Universitas Gadjah Mada, 2016	2016
383	KATALIS Ni-Al2O3-BENTONIT UNTUK HIDRORENGKAH MINYAK SAWIT MENJADI BIOFUEL Google Scholar 👨‍🔬 RN ANNISA 📚 Universitas Gadjah Mada, 2016	2016
384	MATERIAL Ag2O/BENTONIT SEBAGAI ANTIBAKTERI Escherichia coli Google Scholar 👨‍🔬 ITA AZIZ 📚 Universitas Gadjah Mada, 2016	2016
385	SINTESIS KATALIS Cr-Al2O3-BENTONIT UNTUK PROSES HIDRORENGKAH MINYAK SAWIT Google Scholar 👨‍🔬 IKA SEPTIANA 📚 Universitas Gadjah Mada, 2016	2016
386	Modification of natural matrix lac-bagasse for matrix composite films Google Scholar 👨‍🔬 ND Nurhayati, K Widjaya, Triyono 📚 AIP Conference Proceedings 1710 (1), 030013, 2016	2016
387	PERAN RISET KIMIA PADA PENGEMBANGAN BAHAN BAKAR NABATI (BBN) DI INDONESIA BERBASIS NON EDIBLE BIOMASS Google Scholar 👨‍🔬 K Wijaya 📚 PROSIDING SEMINAR NASIONAL KIMIA, 2016	2016
388	SINTESIS 1, 1-DIPENTOKSIPENTANA DARI 1-PENTANOL MENGGUNAKAN KATALIS Ni/KARBON AKTIF Google Scholar 👨‍🔬 M Karna Wijaya, II Falah 📚 Universitas Gadjah Mada, 2015	2015
389	KONVERSI MINYAK KELAPA BEKAS MENJADI BIODIESEL TERKATALISIS H2SO4/BENTONIT DAN KOH/BENTONIT Google Scholar 👨‍🔬 TU Raharja 📚 Universitas Gadjah Mada, 2015	2015
390	SINTESIS BIODIESEL DARI MINYAK GORENG BEKAS DENGAN BANTUAN GELOMBANG MIKRO TERKATALISIS SO4/ZrO2 DAN KOH/ZrO2 Google Scholar 👨‍🔬 SYE LASSI 📚 Universitas Gadjah Mada, 2015	2015
391	Is Fatimah Google Scholar 👨‍🔬 SP Yudha, D Rubiyanto, K Wijaya, I Sahroni 📚 Universitas, 2015	2015
392	SINTESIS BIODIESEL DARI MINYAK GORENG BEKAS TERADIASI MICROWAVE DAN TERKATALISIS SO4/ZrO2 DAN Na2O/ZrO2 Google Scholar 👨‍🔬 NC Agustin 📚 Universitas Gadjah Mada, 2015	2015
393	SINTESIS BIODIESEL DARI FRAKSI MINYAK CPO (CRUDE PALM OIL) PARIT MELALUI ESTERIFIKASI DAN TRANSESTERIFIKASI TERKATALISIS ZrO2/SO3-H+ DAN KOH; BIODIESEL SYNTHESIS OF OIL … Google Scholar 👨‍🔬 I HERLINA 📚 Universitas Gadjah Mada, 2014	2014
394	Website: http://www. ijc. chemistry. ugm. ac. id Email: ijc@ ugm. ac. id or ijcugm@ yahoo. com Vice Editor in Chief Google Scholar 👨‍🔬 K Wijaya, I Tahir, R Armunanto, TJ Raharjo, NH Aprilita, HBM Rode, ... 📚 INDONESIAN JOURNAL OF CHEMISTRY 14 (3), 2014	2014
395	SINTESIS METIL ESTER MINYAK JARAK (Ricinus communis L) TERKATALISIS KOH/BENTONIT DENGAN VARIASI PENAMBAHAN KOH Google Scholar 👨‍🔬 N PUSPITASARI 📚 Universitas Gadjah Mada, 2013	2013
396	PENGGUNAAN KATALISATOR ZIRKONIA TERSULFATASI (SO4/ZrO2) dan KOH PADA PEMBUATAN BIODIESEL DARI MINYAK GORENG BEKAS; SULFATED ZIRCONIA (SO4/ZrO2) and KOH CATALYSTS ON PREPARATION … Google Scholar 👨‍🔬 E Wulandari 📚 Universitas Gadjah Mada, 2013	2013
397	SINTESIS Zn (II)/SILIKA DENGAN METODE SOL-GEL SEBAGAI BAHAN ANTIBAKTERI Esherichia coli DAN Staphylococcus aureus Google Scholar 👨‍🔬 D ANGGRAINI 📚 Universitas Gadjah Mada, 2013	2013
398	SINTESIS, KARAKTERISASI DAN APLIKASI ELEKTRODA Ti/PbO2 PADA ELEKTRODEGRADASI ZAT WARNA BIRU REAKTIF Google Scholar 👨‍🔬 A MUKIMIN 📚 Universitas Gadjah Mada, 2013	2013
399	Synthesis, Characterization and Aplication of TiO2 Alumina Pillared Montmorillonite Photocatalyst Google Scholar 👨‍🔬 I Sumarlan, I Fatimah, K Wijaya 📚 EKSAKTA: Journal of Sciences and Data Analysis, 22-32, 2013	2013
400	JURNAL DIALOG KEBIJAKAN PUBLIK" Menyoal Kebijakan Pengendalian Subsidi BBM" Google Scholar 👨‍🔬 K Publik	2012
401	Website: http://www. ijc. chemistry. ugm. ac. id Email: ijcugm@ yahoo. com Vice Editor in Chief Google Scholar 👨‍🔬 K Wijaya, MS Nuryono, R Armunanto, TJ Raharjo, NH Aprilita, HBM Rode, ... 📚 INDONESIAN JOURNAL OF CHEMISTRY 12 (3), 2012	2012
402	Preliminary study on the use of desalination waste for the manufacture of Mg/Al hydrotalcite-like methyl orange as an adsorbent. Google Scholar 👨‍🔬 E Heraldy, D Prasasti, K Wijaya, SJ Santosa, T Triyono	2012
403	PEMBERDAYAAN MASYARAKAT MENUJU DESAMANDIRI ENERGI MELALUI PENGOLAHAN SAMPAH BUAH JAMBU METE DAN UMBI-UMBIAN MENJADI BIOETANOL DI DESA KARANGMOJO, KECAMATAN KARANGMOJO … Google Scholar 👨‍🔬 K Wijaya 📚 JURNAL ILMU PENGETAHUANDAN TEKNOLOGI TEPATGUNA UNIVERSITAS GADJAH MA 1 (2011), 2011	2011
404	HIDRORENGKAH KATALITIK MINYAK SAWIT MENJADI FRAKSI BIOFUEL CAIR MENGGUNAKAN KATALIS Cr/ZEOLIT ALAM AKTIF Google Scholar 👨‍🔬 GB Balabuana 📚 Universitas Gadjah Mada, 2011	2011
405	PREPARATION OF ZIRCONIUM DISPERSED IN ALUMINIUM PILLARED MONTMORILLONITE AND ITS ACTIVITY IN PHENOL HYDROXYLATION Google Scholar 👨‍🔬 IS FATIMAH, NARSITO, K WIJAYA 📚 Chemical, Biological And Environmental Engineering, 133-137, 2010	2010
406	Nanomaterial Berlapis dan Berpori : Sintesis, Karakterisasi, dan Peranannya sebagai Material Multifungsi (Pidato Pengukuhan Guru Besar UGM) Google Scholar 👨‍🔬 K Wijaya	2010
407	MODELING OF ALKYL SALICYLATE COMPOUNDS AS UV ABSORBER BASED ON ELECTRONIC TRANSITION BY USING SEMIEMPIRICAL QUANTUM MECHANICS ZINDO/s CALCULATION Google Scholar 👨‍🔬 I Tahir, K Wijaya, T Subarni 📚 Indonesian Journal of Chemistry 2 (1), 64-72, 2010	2010
408	Konversi lemak itik menjadi biodiesel dengan katalis zeolit alam teraktivasi H2SO4 dan NaOH Google Scholar 👨‍🔬 AT KURNIA 📚 Universitas Gadjah Mada, 2009	2009
409	CONTROLLINGFACTORIN ALUMINA PilLARED SAPONITEAND ALUMINA PilLARED MONTMORillONITE SYNTHESIS Google Scholar 👨‍🔬 I Fatlmah, KW Narsito 📚 Indonesian Journal of Chemistry 9 (2009), 2008	2008
410	Modifikasi zeolit alam dengan TiO2 dan aplikasinya sebagai fotokatalis dalam reaksi degradasi untuk menurunkan angka COD limbah cair industri tekstil Google Scholar 👨‍🔬 Y UTUBIRA 📚 Universitas Gadjah Mada, 2006	2006
411	Zeolit termodifikasi TiO2 dan aplikasinya sebagai fotokatalis untuk menurunkan angka COD limbah cair industri tekstil Google Scholar 👨‍🔬 M MIRZAN 📚 Universitas Gadjah Mada, 2006	2006
412	Salt-dependent binding of iron (II) mixed-ligand complexes containing 1, 10-phenanthroline and dipyrido (3, 2-a:,-c) phenazine to calf thymus DNA Google Scholar 👨‍🔬 Mudasir, K Wijaya, E Tri Wahyuni, N Yoshioka, H Inoue 📚 Biophysical Chemistry 121 (1), 44-50, 2006	2006
413	Pengaruh Konsentrasi Logam Ti terhadap Karakter Fisikokimiawi TiO₂-Zeolit dan Pemanfaatan TiO₂-Zeolit untuk Fotodegradasi Metilen Biru Google Scholar 👨‍🔬 I Fatimah, K Wijaya 📚 Universitas Islam Indonesia, 2005	2005
414	Sintesis lempung montmorillonit terpilar Fe2O3 dan kajian sifat-sfat kimia fisiknya= Synthesis of Fe2O3 pillared montmorillonite clay and study of its physico-chemical properties Google Scholar 👨‍🔬 IAG Widihati, K Wijaya, MU Yahya 📚 Sains dan Sibernatika 17 (2004), 2004	2004
415	Preparasi komposit besi oksida-Montmorilonit dan aplikasinya sebagai adsorben senyawa benzena Google Scholar 👨‍🔬 SJ SEKEWAEL 📚 Universitas Gadjah Mada, 2004	2004
416	Original Communications-Polysulfonylamines, CLXVII. Hydrogen Bonding in Crystalline Onium Dimesylamides: A Robust Three-Point Pattern Integrated into a 2D, a Two-fold … Google Scholar 👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones 📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 59 (1), 17-26, 2004	2004
417	Original Communications-Polysulfonylamines, CLXX. Hydrogen Bonding in Crystalline Onium Dimesylamides: Three Structures Involving NH2-Substituted 1, 3, 5-Triazinium Cations … Google Scholar 👨‍🔬 K Wijaya, O Moers, D Henschel, A Blaschette, PG Jones 📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 59 (7), 747-756, 2004	2004
418	Polysulfonylamines, CLXX [1]. Hydrogen bonding in crystalline onium dimesylamides: Three structures involving NH2-substituted 1, 3, 5-triazinium cations (including melaminium) Google Scholar 👨‍🔬 K Wijaya, O Moers, D Henschel, A Blaschette, PG Jones 📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 59 (7 …, 2004	2004
419	PEMBUATAN KOMPLEKS MIXED-LIGAND BESI (II) SEBAGAI SENYAWA INTERKALATOR DNA Google Scholar 👨‍🔬 KW Mudasir, DH Tjahjono 📚 Lembaga Penelitian UGM, 2003	2003
420	SINTESIS PILLARED-BENTONITE DAN APLIKASINYA UNTUK PHOTO-FUNCTIONAL MATERIALS Google Scholar 👨‍🔬 K Wijaya 📚 text, 2003	2003
421	A ROBUST EIGHT–MEMBERED RING MOTIF IN THE HYDROGEN-BONDED STRUCTURE OF 2-(PHENYLAMINO) PYRIDINIUM-DI (METHANESULFONYL) AMIDATE Google Scholar 👨‍🔬 K Wijaya, I Tahir, A Blaschette, O Mours, PG Jones 📚 Indonesian Journal of Chemistry 2 (1), 73-78, 2002	2002
422	Determination Of Many-Body Effect Of [Co (NF13) â] 2(n= 1-6)= Penentuan Pengaruh Badan-Banyak Pada Kompleks [Co (NH,), J2(n= 1-6) Berdasarkan Perhitungan Ab Initio Google Scholar 👨‍🔬 HD Pranowo, K Wijaya, B Setiaji, RS Janu 📚 Indonesian Journal of Chemistry 2 (2002), 2002	2002
423	THE INTERACTION OF Co 2+-AMMONIA MODELLING: THE COMPARATIVE STUDY BETWEEN AB INITIO AND ELECTRON CORRELATION METHODS Google Scholar 👨‍🔬 HD Pranowo, F Foliatini, K Wijaya 📚 Indonesian Journal of Chemistry 2 (2), 2002	2002
424	Analisis regresi linear multivariabel:: Hubungan kuantitatif struktur molekul dan sifat fisika (Titik didih, titik leleh dan kerapatan) berbagai senyawa organik Google Scholar 👨‍🔬 M YAPIN 📚 Universitas Gadjah Mada, 2002	2002
425	Polysulfonylamines, CLI. Strong and weak hydrogen bonding in the crystal structures of 8-hydroxyquinolinium and 8-aminoquinolinium dimesylamide Google Scholar 👨‍🔬 D Henschel, O Moers, K Wijaya, A Blaschette, PG Jones 📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 57 (5 …, 2002	2002
426	Polysulfonylamine, CLIX [1]. Eine Vielfalt supramolekularer Synthone in zwei Molekülkomplexen von Di (4-halogenbenzolsulfonyl) aminen mit Sauerstoffbasen/Polysulfonylamines … Google Scholar 👨‍🔬 T Hamann, K Wijaya, O Moers, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung B 57 (10), 1152-1164, 2002	2002
427	Polysulfonylamines, CLXI. A novel 1, 2-dihydroimidazoquinolinylium cation: Serendipitous isolation and crystal structure of the corresponding dimesylamide Google Scholar 👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones 📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 57 …, 2002	2002
428	Original Communications-Polysulfonylamines, CXLIII. Role of Weak Hydrogen Bonds (CH... O) in the Crystal Structures of 2, 6-Dimethylpyridinium, 1-Hydroxypyridinium and … Google Scholar 👨‍🔬 O Moers, K Wijaya, T Hamann, A Blaschette, PG Jones 📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 56 (10), 1052-1062, 2001	2001
429	Original Communications-Polysulfonylamines, CXLII. A Supramolecular Monomer-Dimer Pair: Strong and Weak Hydrogen Bonding in the Crystal Structures of Pyridinium Dimesylamide and Google Scholar 👨‍🔬 O Moers, I Lange, K Wijaya, A Blaschette, PG Jones 📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 56 (10), 1041-1051, 2001	2001
430	Polysulfonylamines, CXLII. A supramolecular monomer-dimer pair: Strong and weak hydrogen bonding in the crystal structures of pyridinium dimesylamide and 4, 4'-bipyridinediium … Google Scholar 👨‍🔬 O Moers, I Lange, K Wijaya, A Blaschette, PG Jones 📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 56 …, 2001	2001
431	Original Communications-Polysulfonylamines, CXXV. New Complexes of Disulfonylamines with Crown Ethers-Preconceived or Discovered by Serendipity (In German) Google Scholar 👨‍🔬 D Henschel, K Wijaya, O Moers, A Blaschette, PG Jones 📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 55 (3-4), 299-316, 2000	2000
432	Original Communications-Polysulfonylamines, CXXVI. Hydrogen Bonding in Crystalline Onium Dimesylamides: A Robust Eight-Membered Ring Synthon in Coexistence with a Third … Google Scholar 👨‍🔬 O Moers, K Wijaya, I Lange, A Blaschette, PG Jones 📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 55 (8), 738-752, 2000	2000
433	Original Communications-Polysulfonylamines, CXXVII. Hydrogen Bonding in Crystalline Onium Dimesylamides: A Robust Eight-Membered Ring Synthon as a Component in Three … Google Scholar 👨‍🔬 K Wijaya, O Moers, D Henschel, A Blaschette, PG Jones 📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 55 (8), 753-762, 2000	2000
434	Polysulfonylamine, CXXVI [1] Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Ein robustes Achtring-Synthon in Koexistenz mit einem dritten Wasserstoffbrückenmotiv … Google Scholar 👨‍🔬 O Moers, K Wijaya, I Lange, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung B 55 (8), 738-752, 2000	2000
435	Original Communications-Polysulfonylamines, CXIX. Hydrogen Bonding in Crystalline Onium Dimesylamides: An Antidromic Eight-Membered Ring Pattern as a Robust Supramolecular … Google Scholar 👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones 📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 54 (11), 1441-1449, 1999	1999
436	Nichtkovalente Disulfonylamin-Derivate: Onium-Salze und Coronaplexe Google Scholar 👨‍🔬 K Wijaya 📚 na, 1999	1999
437	POLYSULFONYLAMINES, CXIX [1, 2]: HYDROGEN BONDING IN CRYSTALLINE ONIUM DIMESYLAMIDES: AN ANTIDROMIC EIGHT-MEMBERED RING PATTERN AS A ROBUST SUPRAMOLECULAR SYNTHON-THREE … Google Scholar 👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones 📚 ZEITSCHRIFT FUR NATURFORSCHUNG 54 (11), 1441-1449, 1999	1999
438	Original Communications-Polysulfonylamines, CXVIII. Hydrogen Bonding in Crystalline Onium Dimesylamides: Three prim-Ammonium Dimesylamides Exhibiting Two-or Three-Dimensional … Google Scholar 👨‍🔬 D Henschel, O Moers, K Wijaya, A Blaschette, PG Jones 📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 54 (11), 1431-1440, 1999	1999
439	Original Communications-Polysulfonylamines, CXII. A Novel Solid-State Aspect of 2-Pyridones: Isolation and X-Ray Structures of Bis (2-pyridone) hydrogen (l) and Bis (6-methyl-2 … Google Scholar 👨‍🔬 K Wijaya, O Moers, A Blaschette, RG Jones 📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 54 (5), 643-648, 1999	1999
440	Original Communications-Polysulfonylamines, CXVII. Hydrogen Bonding in Crystalline Onium Dimesylamides: Six Systematically Varied sec-Ammonium Dimesylamides Exhibiting Six … Google Scholar 👨‍🔬 O Moers, K Wijaya, D Henschel, A Blaschette, RG Jones 📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 54 (11), 1420-1430, 1999	1999
441	Polysulfonylamine, CXVIII Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Drei prim.-Ammonium-dimesylamide mit zwei-oder dreidimensionalen Wasserstoffbrückenmustern … Google Scholar 👨‍🔬 D Henschel, O Moers, K Wijaya, A Blaschette, PG Jones 📚 Zeitschrift für Naturforschung B 54 (11), 1431-1440, 1999	1999
442	Polysulfonylamines, XCVII. Di (organosulfonyl)-amines and their Conjugate Anions as Simultaneous Building Blocks in Two Supramolecular Structures (In German) Google Scholar 👨‍🔬 D Henschel, K Wijaya, O Moers, A Blaschette, PG Jones 📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 52 (10), 1229-1236, 1997	1997
443	Polysulfonylamines. 90. Carboxylic acid dimers, water dimers and 18-crown-6 molecules as building blocks in a supramolecular chain polymer: Synthesis and structure of (CH2CH2O … Google Scholar 👨‍🔬 K Wijaya, O Moers, A Blaschette, G Jones 📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 52 (8 …, 1997	1997
444	THE EFFECT OF TEMPERATURE ON BIODIESEL CONVERSION FROM CALLOPHYLUM INOPHYLUM L (NYAMPLUNG) OIL CATALYZED BY H-ZEOLITE AND NaOH Google Scholar 👨‍🔬 K Wijaya, A Syoufian, J Kusmasari 📚 fuel 3, 6, 0
445	KAJIAN TEORITIS SELEKTIVITAS THIACROWN ETHER 18S6 DAN 18-UT-6 TERHADAP SENYAWA LOGAM TRANSISI CF3COOAG DAN CDCL2 DENGAN METODE SEMIEMPIRIK ZINDO Google Scholar 👨‍🔬 S HAMDANI, K WIJAYA, I TAHIR 📚 Prosiding Seminar Nasional Kimia XV ISSN NO 1410, 8313, 0
446	BIODIESEL FROM CATFISH OIL (Clarias Gariepinus) Google Scholar 👨‍🔬 GB Balabuana, K Wijaya, W Trisunaryanti
447	SINTESIS BIODIESEL DARI LIMBAH MINYAK NABATI TERKATALISIS (SO4/ZrO2) DAN (KOH/ZrO2) Google Scholar 👨‍🔬 K Wijaya, E Wulandari
448	Quantitative Structure and Glass Transition Temperature Relationships Analysis of Polyethylene Analogues Google Scholar 👨‍🔬 I Tahir, K Wijaya, B Setiaji, Y Hidayat, BM Rode
449	PRELIMINARY STUDIES ON HYDROTALCITE-LIKE SYNTHESIS USING MAGNESIUM FROM DESALINATION WASTE Google Scholar 👨‍🔬 E Heraldy, SJ Triyono, K Wijaya, NB Alnavis, ES Rustina
450	Polysulfonylamine, CXVII [1] Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Sechs systematisch variierte s££.-Ammonium-dimesylamide mit sechs verschiedenen null-, ein … Google Scholar 👨‍🔬 CXV Polysulfonylamines, O Moers, K Wijaya, D Henschel, A Blaschette, ...
451	ANALYSIS OF HYDROGEN ADSORPTION AND DIFFUSION ON Mg (0001) SURFACE: AN AB INITIO DFT STUDY Google Scholar 👨‍🔬 IW Sutapa, R Armunanto, K Wijaya 📚 Jurnal Berkala Ilmiah Sains dan Terapan Kimia 4 (1), 23-28, 0
452	Drei prim.-Ammonium-dimesylamide mit zwei-oder dreidimensionalen Wasserstoffbrückenmustern Google Scholar 👨‍🔬 C Polysulfonylamines, D Henschel, O Moers, K Wijaya, A Blaschette, ...
453	Polysulfonylamine, XCVII [1] Di (organosulfonyl) amine und ihre konjugierten Anionen als simultane Baugruppen in zwei supramolekularen Strukturen Google Scholar 👨‍🔬 X Polysulfonylamines, D Henschel, K Wijaya, O Moers, A Blaschette, ...
454	Synthesis of Ag2O/Bentonite as Antibacterial Material Candidate Google Scholar 👨‍🔬 ITA Aziz, YS Kurniawan, I Tahir, K Wijaya
455	Benzo-18-krone-6 Ð Acetonitril (1/2): Kristallisation und Tieftemperatur-Röntgenstrukturanalyse Google Scholar 👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones
456	Sumerta., Wijaya, Karna., & Tahir, Iqmal. 2002 Google Scholar 👨‍🔬 I Kadek 📚 Fotodegradasi MEtilen Biru Menggunakan Katalis TiO2-Montmorilonit dan Sinar UV, 0
457	Polysulfonylamine, CXXV [1]. Neue Komplexe von Disulfonylaminen mit Kronenethern-im voraus entworfen oder zufällig entdeckt Google Scholar 👨‍🔬 C Polysulfonylamines, D by Serendipity, D Henschel, K Wijaya, O Moers, ...
458	MATERIAL CuO/BENTONIT SEBAGAI BAHAN ANTIBAKTERI ESCHERICHIA COLI Google Scholar 👨‍🔬 RY Fatmawati, K Wijaya, I Tahir
459	OPTIMISASI RASIO DIAZINON/ASAM METAKRILAT SECARA TEORITIK BERDASARKAN METODA SEMIEMPIRIK AM1 UNTUK SINTESIS POLIMER TERCETAK MOLEKUL Google Scholar 👨‍🔬 A Saputra, K Wijaya, MN Ahmad, I Tahir 📚 Jurnal Berkala Ilmiah Sains dan Terapan Kimia 7 (2), 89-102, 0
460	Kinetic Model of Crude Palm Oil Hydrocracking Over Ni/Mo ZrO Google Scholar 👨‍🔬 H Hasanudin, MS Addy Rachmat, K Wijaya
461	Journal Submission Google Scholar 👨‍🔬 I Arief, HD Pranowo, M Mudasir, K Wijaya
462	BIOFUEL DI INDONESIA Google Scholar 👨‍🔬 PDANSP PROSPEK, K WIJAYA
463	Sustainable Energy Technologies and Assessments Google Scholar 👨‍🔬 K Wijaya, T Jarin, C Sumathijonesf, OH Abd-Elkader, MOH Abd-Elkader, ...
464	Polysulfonylamine, CLIX [1]. Eine Vielfalt supramolekularer Synthone in zwei Molekülkomplexen von Di (4-halogenbenzolsulfonyl) aminen mit Sauerstoffbasen Google Scholar 👨‍🔬 C Polysulfonylamines, T Hamann, K Wijaya, O Moers, A Blaschette, ...
465	Polysulfonylamine, CLXI [1]. Ein neuartiges 1, 2-Dihydroimidazochinolinylium-Kation: Zufällige Isolierung und Kristallstruktur des entsprechenden Dimesylamids Google Scholar 👨‍🔬 C Polysulfonylamines, D Cation, K Wijaya, O Moers, A Blaschette, ...
466	Polysulfonylamine, CLXX [1]. Wasserstoffbrucken in kristallinen Onium-dimesylamiden: Drei Strukturen mit NH2-substituierten 1, 3, 5-Triazinium-Kationen (einschließlich Melaminium) Google Scholar 👨‍🔬 TSI NH2-Substituted, T Cations, K Wijaya, O Moers, D Henschel
467	Polysulfonylamine, CXVIII [1] Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Drei prim.-Ammonium-dimesylamide mit zwei-oder dreidimensionalen Wasserstoffbrückenmustern Google Scholar 👨‍🔬 C Polysulfonylamines, D Henschel, O Moers, K Wijaya, A Blaschette
468	Polysulfonylamine, CXIX [1, 2] Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Ein antidromes Achtringmuster als robustes supramolekulares Synthon Ð Drei prototypische … Google Scholar 👨‍🔬 C Polysulfonylamines, K Wijaya, O Moers, A Blaschette, PG Jones
469	Polysulfonylamine, CLI [1]. Starke und schwache Wasserstoffbrücken in den Kristallstrukturen von 8-Hydroxychinolinium-und 8-Aminochinolinium-dimesylamid Google Scholar 👨‍🔬 CLI Polysulfonylamines, D Henschel, O Moers, K Wijaya, A Blaschette
470	PROGRAM PASCASARJANA Google Scholar 👨‍🔬 SK Dirjen
471	International Journal of Technology Google Scholar 👨‍🔬 MA Heryanto, B Kusumoputro
472	Case Studies in Chemical and Environmental Engineering Google Scholar 👨‍🔬 AJ Saviola, K Wijaya, A Syoufian, WD Saputri
473	One-Stage Improvement of Bio-Oil Through Hydrodeoxygenation with the Addition of Ethanol Solvent Using a Mordenite-Based Ni Metal Catalyst Google Scholar 👨‍🔬 MI Hasibuan, K Wijaya, JL Sihombing, AN Pulungan, A Haryono, ... 📚 Muhammad Afdhal and, Rahayu and Gea, Saharman, One-Stage Improvement of Bio …, 0
474	Scientific Committee: 4th International Symposium on Applied Chemistry (ISAC) 2018 Google Scholar 👨‍🔬 NH Voelcker, S Saka, V Degirmenci, KM Khan, K Wijaya, D Lennon, ...
475	Results in Engineering Google Scholar 👨‍🔬 A Mutafi, JM Irwan, N Yidris, AM Ghaleb, S Al-Alimi, M Amran, M Qasem, ...
476	IIALAMAN PENGESAHAN Google Scholar 👨‍🔬 AS Hutama, S Si, K Wijaya
477	Next Materials Google Scholar 👨‍🔬 EC Sambara, AJ Saviola, A Syoufian, RA Fitria, A Mumtaziyah, K Rozana, ...
478	Synthesis of SO4 2–/ZrO2 Solid Acid and Na2O/ZrO2 Solid Base Catalysts Using Hydrothermal Method for Biodiesel Production from Low-Grade Crude Palm Oil Sri Setyaningsih1 … Google Scholar 👨‍🔬 NW Yuwono, K Wijaya
479	The Role of Adsorption in Environmental Remediation Using MXene-Based Composites Google Scholar 👨‍🔬 K Wijaya, AJ Saviola, A Syoufian, RA Fitria, P Wahyuningsih, P Chandra, ... 📚 MXene Composites for Biological and Environmental Applications, 112-137, 0
480	MXene Composites for Water Pollution Control and Photocatalytic Effects Google Scholar 👨‍🔬 L Kabir, K Wijaya, WC Oh 📚 MXene Composites for Biological and Environmental Applications, 166-234, 0
481	Polysulfonylamine, CLIII [1]. Schwache Wasserstoffbrücken mit aktivierten Methyldonoren: Kristallstrukturen von Cholinium-, Betainium-und Dimethyl [2-(dimethylamino) ethyl … Google Scholar 👨‍🔬 C Polysulfonylamines, D Henschel, O Moers, K Wijaya, A Wirth, ...
482	Polysulfonylamine, CXLII [1]. Ein supramolekulares Monomer-Dimer-Paar: Starke und schwache Wasserstoffbrücken in den Kristallstrukturen von Pyridinium-dimesylamid und 4, 4 … Google Scholar 👨‍🔬 P Dimesylamide, B Bis

1

Pt-promoted sulfated zirconia as catalyst for hydrocracking of LDPE plastic waste into liquid fuels

Google Scholar

👨‍🔬 M Utami, K Wijaya, W Trisunaryanti

📚 Materials Chemistry and Physics 213, 548-555, 2018

2018

2

Sintesis TiO2/zeolit sebagai fotokatalis pada pengolahan limbah cair industri tapioka secara adsorpsi-fotodegradasi

Google Scholar

👨‍🔬 I Fatimah, K Wijaya

📚 Teknoin 10 (4), 2005

2005

3

The synthesis of SO4/ZrO2 and Zr/CaO catalysts via hydrothermal treatment and their application for conversion of low-grade coconut oil into biodiesel

Google Scholar

👨‍🔬 MS La Ore, K Wijaya, W Trisunaryanti, WD Saputri, E Heraldy, ...

📚 Journal of Environmental Chemical Engineering 8 (5), 104205, 2020

2020

4

Esterification of palm fatty acid distillate with high amount of free fatty acids using coconut shell char based catalyst

Google Scholar

👨‍🔬 A Hidayat, K Wijaya, A Nurdiawati, W Kurniawan, H Hinode, K Yoshikawa, ...

📚 Energy Procedia 75, 969-974, 2015

2015

5

DNA binding of iron (II) complexes with 1, 10-phenanthroline and 4, 7-diphenyl-1, 10-phenanthroline: salt effect, ligand substituent effect, base pair specificity and binding …

Google Scholar

👨‍🔬 K Wijaya, N Yoshioka, H Inoue

📚 Journal of inorganic biochemistry 94 (3), 263-271, 2003

2003

6

Effect of pyrolisis temperature and distillation on character of coconut shell liquid smoke

Google Scholar

👨‍🔬 JZ Lombok, B Setiaji, W Trisunaryanti, K Wijaya

📚 Asian Journal of Science and Technology 5 (6), 320-325, 2014

2014

7

Synthesis of nickel catalyst supported on ZrO2/SO4 pillared bentonite and its application for conversion of coconut oil into gasoline via hydrocracking process

Google Scholar

👨‍🔬 K Wijaya, MA Kurniawan, WD Saputri, W Trisunaryanti, M Mirzan, ...

📚 Journal of Environmental Chemical Engineering 9 (4), 105399, 2021

2021

8

Hydrothermal treatment of SO4/TiO2 and TiO2/CaO as heterogeneous catalysts for the conversion of Jatropha oil into biodiesel

Google Scholar

👨‍🔬 RA Pratika, K Wijaya, W Trisunaryanti

📚 Journal of Environmental Chemical Engineering 9 (6), 106547, 2021

2021

9

Oxidation of remazol brilliant blue r (RB. 19) with in situ electro-generated active chlorine using Ti/PbO2 electrode

Google Scholar

👨‍🔬 A Mukimin, K Wijaya, A Kuncaka

📚 Separation and purification technology 95, 1-9, 2012

2012

10

A comprehensive review of experimental parameters in bio-oil upgrading from pyrolysis of biomass to biofuel through catalytic hydrodeoxygenation

Google Scholar

👨‍🔬 S Gea, YA Hutapea, AFR Piliang, AN Pulungan, R Rahayu, J Layla, ...

📚 BioEnergy Research 16 (1), 325-347, 2023

2023

11

Composites of TiO2-aluminum pillared montmorillonite: synthesis, characterization and photocatalytic degradation of methylene blue

Google Scholar

👨‍🔬 I Fatimah, S Wang, K Wijaya

📚 Applied clay science 50 (4), 588-593, 2010

2010

12

Recent progress on sulfated nanozirconia as a solid acid catalyst in the hydrocracking reaction

Google Scholar

👨‍🔬 SJ Sekewael, RA Pratika, L Hauli, AK Amin, M Utami, K Wijaya

📚 Catalysts 12 (2), 191, 2022

2022

13

Hydrothermal preparation of a platinum-loaded sulphated nanozirconia catalyst for the effective conversion of waste low density polyethylene into gasoline-range hydrocarbons

Google Scholar

👨‍🔬 M Utami, W Trisunaryanti, K Shida, M Tsushida, H Kawakita, K Ohto, ...

📚 RSC advances 9 (71), 41392-41401, 2019

2019

14

Base-specific and enantioselective studies for the DNA binding of iron (II) mixed-ligand complexes containing 1, 10-phenanthroline and dipyrido [3, 2-a: 2′, 3′-c] phenazine

Google Scholar

👨‍🔬 K Wijaya, ET Wahyuni, H Inoue, N Yoshioka

📚 Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 66 (1 …, 2007

2007

15

Titanium oxide dispersed on natural zeolite (TiO 2/Zeolite) and its application for congo red photodegradation

Google Scholar

👨‍🔬 I Fatimah, E Sugiharto, K Wijaya, I Tahir, K Kamalia

📚 Indonesian Journal of Chemistry 6 (1), 38-42, 2010

2010

16

Recent advances and latest technologies in energy storage applications based on 2D MXene

Google Scholar

👨‍🔬 L Kabir, J Qi, K Wijaya, S Sagadevan, CM Yoon, K Ullah, WC Oh

📚 Journal of Energy Storage 80, 110335, 2024

2024

17

Photocatalytic degradation of naphthol blue from Batik wastewater using functionalized TiO2-based composites

Google Scholar

👨‍🔬 M Utami, S Wang, MM Musawwa, M Fitri, K Wijaya, D Johnravindar, ...

📚 Chemosphere 337, 139224, 2023

2023

18

Green synthesis of hierarchical porous carbon prepared from coconut lumber sawdust as Ni-based catalyst support for hydrotreating Callophyllum inophyllum oil

Google Scholar

👨‍🔬 W Trisunaryanti, K Wijaya, T Triyono, AR Adriani, S Larasati

📚 Results in Engineering 11, 100258, 2021

2021

19

Preparation and characterization of sulfated zirconia from a commercial zirconia nanopowder

Google Scholar

👨‍🔬 L Hauli, K Wijaya, R Armunanto

📚 Oriental Journal of Chemistry 34 (3), 1559, 2018

2018

20

Preparation and Characterization of TiO2-Zeolite and Its Application to Degrade Textille Wastewater by Photocatalytic Method

Google Scholar

👨‍🔬 Y Utubira, K Wijaya, T Triyono, E Sugiharto

📚 Indonesian Journal of Chemistry 6 (3), 231-237, 2006

2006

21

Catalytic hydrocracking of fresh and waste frying oil over Ni-and Mo-based catalysts supported on sulfated silica for biogasoline production

Google Scholar

👨‍🔬 K Wijaya, A Nadia, A Dinana, AF Pratiwi, AD Tikoalu, AC Wibowo

📚 Catalysts 11 (10), 1150, 2021

2021

22

Hydrocracking of LDPE Plastic Waste into Liquid Fuel over Sulfated Zirconia from a Commercial Zirconia Nanopowder.

Google Scholar

👨‍🔬 L Hauli, K Wijaya, A Syoufian

📚 Oriental Journal of Chemistry 35 (1), 2019

2019

23

Effect of Aluminium Content in Aluminium Pillared Montmorillonite on Its Surface Acidity Properties.

Google Scholar

👨‍🔬 IS Fatimah, K Wijaya

📚 ITB Journal of Science, 2011

2011

24

Synthesis and characterization of sulfated zirconia mesopore and its application on lauric acid esterification

Google Scholar

👨‍🔬 A Rachmat, W Trisunaryanti, Sutarno, K Wijaya

📚 Materials for Renewable and Sustainable Energy 6 (3), 13, 2017

2017

25

Terapan analisis hansch untuk aktivitas antioksidan senyawa turunan flavon/flavonol

Google Scholar

👨‍🔬 I Tahir, K Wijaya, D Widianingsih

📚 Makalah Seminar Khemometri 25, 2003

2003

26

Hydrocracking optimization of palm oil to bio-gasoline and bio-aviation fuels using molybdenum nitride-bentonite catalyst

Google Scholar

👨‍🔬 H Hasanudin, WR Asri, M Said, PT Hidayati, W Purwaningrum, N Novia, ...

📚 RSC advances 12 (26), 16431-16443, 2022

2022

27

Silica-Based Solid Acid Catalyst with Different Concentration of H2SO4 and Calcination Temperature: Preparation and Characterization

Google Scholar

👨‍🔬 A Aneu, K Wijaya, A Syoufian

📚 Silicon 13 (7), 2265-2270, 2021

2021

28

Anionic and cationic dyes removal from aqueous solutions by adsorption onto synthetic Mg/Al hydrotalcite-like compound

Google Scholar

👨‍🔬 E Heraldy, SJ Santosa, T Triyono, K Wijaya

📚 Indonesian Journal of Chemistry 15 (3), 234-241, 2015

2015

29

Characteristics of coconut shell-based activated carbon as Ni and Pt catalyst supports for hydrotreating Calophyllum inophyllum oil into hydrocarbon-based biofuel

Google Scholar

👨‍🔬 W Trisunaryanti, K Wijaya, T Triyono, N Wahyuningtyas, SP Utami, ...

📚 Journal of Environmental Chemical Engineering 10 (5), 108209, 2022

2022

30

Synthesis, characterizations and catalysis of sulfated silica and nickel modified silica catalysts for diethyl ether (DEE) production from ethanol towards renewable energy …

Google Scholar

👨‍🔬 K Wijaya, ML Lammaduma Malau, M Utami, S Mulijani, A Patah, ...

📚 Catalysts 11 (12), 1511, 2021

2021

31

The Catalytic Performance of ZrO2-SO4 and Ni/ZrO2-SO4 Prepared from Commercial ZrO2 in Hydrocracking of LDPE Plastic Waste into Liquid Fuels.

Google Scholar

👨‍🔬 AK Amin, K Wijaya, W Trisunaryanti

📚 Oriental Journal of Chemistry 34 (6), 2018

2018

32

Effect of sulfuric acid treatment and calcination on commercial zirconia nanopowder

Google Scholar

👨‍🔬 M Utami, K Wijaya, W Trisunaryanti

📚 Key Engineering Materials 757, 131-137, 2017

2017

33

Environmental impacts and the food vs. fuel debate: A critical review of palm oil as biodiesel

Google Scholar

👨‍🔬 I Purnama, A Mutamima, M Aziz, K Wijaya, ID Maulida, J Junaidi, K Sari, ...

📚 GCB Bioenergy 17 (6), e70043, 2025

2025

34

Mesoporous silica preparation using sodium bicarbonate as template and application of the silica for hydrocracking of used cooking oil into biofuel

Google Scholar

👨‍🔬 K Wijaya, WD Saputri, ITA Aziz, Wangsa, E Heraldy, L Hakim, A Suseno, ...

📚 Silicon 14 (4), 1583-1591, 2022

2022

35

Antimicrobial Imperata cylindrica paper coated with anionic nanocellulose crosslinked with cationic ions

Google Scholar

👨‍🔬 D Zulfiana, A Karimah, SH Anita, N Masruchin, K Wijaya, L Suryanegara, ...

📚 International journal of biological macromolecules 164, 892-901, 2020

2020

36

Lithium (I) in liquid ammonia: A quantum mechanical charge field (QMCF) molecular dynamics simulation study

Google Scholar

👨‍🔬 N Prasetyo, LR Canaval, K Wijaya, R Armunanto

📚 Chemical Physics Letters 619, 158-162, 2015

2015

37

The potency of hydrothermally prepared sulfated silica (SO4/SiO2) as a heterogeneous acid catalyst for ethanol dehydration into diethyl ether

Google Scholar

👨‍🔬 RA Pratika, K Wijaya, M Utami, S Mulijani, A Patah, S Alarifi, RR Mani, ...

📚 Chemosphere 341, 139822, 2023

2023

38

Ekstraksi kalium dari abu tandan kosong sawit sebagai katalis pada reaksi transesterifikasi minyak sawit

Google Scholar

👨‍🔬 M Imaduddin, Y Yoeswono, K Wijaya, I Tahir

📚 Bulletin of Chemical Reaction Engineering & Catalysis 3 (1-3), 14-20, 2008

2008

39

Effect of palm empty bunch ash on transesterification of palm oil into biodiesel

Google Scholar

👨‍🔬 J Sibarani, S Khairi, Y Yoeswono, K Wijaya, I Tahir

📚 Indo J. Chem 7 (3), 314-319, 2007

2007

40

Optimization of thiamine chitosan nanoemulsion production using sonication treatment

Google Scholar

👨‍🔬 I Tahir, J Millevania, K Wijaya, RA Wahab, W Kurniawati

📚 Results in Engineering 17, 100919, 2023

2023

41

Porous silica modification with sulfuric acids and potassium fluorides as catalysts for biodiesel conversion from waste cooking oils

Google Scholar

👨‍🔬 A Aneu, K Wijaya, A Syoufian

📚 Journal of Porous Materials 29 (5), 1321-1335, 2022

2022

42

Esterification of free fatty acid on palm fatty acid distillate using activated carbon catalysts generated from coconut shell

Google Scholar

👨‍🔬 A Hidayat, K Wijaya, A Budiman

📚 Procedia Chemistry 16, 365-371, 2015

2015

43

Alkaline leaching-carbon from sugarcane solid waste for screen-printed carbon electrode

Google Scholar

👨‍🔬 F Rahmawati, KR Heliani, AT Wijayanta, R Zainul, K Wijaya, T Miyazaki, ...

📚 Chemical Papers 77 (6), 3399-3411, 2023

2023

44

Effectively Synthesizing SO4/TiO2 Catalyst and Its Performance for Converting Ethanol into Diethyl Ether (DEE)

Google Scholar

👨‍🔬 K Wijaya, AR Putri, S Sudiono, S Mulijani, A Patah, AC Wibowo, ...

📚 Catalysts 11 (12), 1492, 2021

2021

45

Fuel production from LDPE-based plastic waste over chromium supported on sulfated zirconia

Google Scholar

👨‍🔬 L Hauli, K Wijaya, A Syoufian

📚 Indonesian Journal of Chemistry 20 (2), 422-429, 2020

2020

46

Multi‐pathways for sustainable fuel production from biomass using zirconium‐based catalysts: A comprehensive review

Google Scholar

👨‍🔬 I Purnama, W Trisunaryanti, K Wijaya, A Mutamima, WC Oh, ...

📚 Energy Technology 12 (2), 2300901, 2024

2024

47

Self-regeneration of Monodisperse Hierarchical Porous NiMo/Silica Catalyst Induced by NaHCO3 for Biofuel Production

Google Scholar

👨‍🔬 A Nadia, K Wijaya, II Falah, S Sudiono, A Budiman

📚 Waste and Biomass Valorization 13 (4), 2335-2347, 2022

2022

48

Microwave assisted preparation of TiO2/Al-pillared saponite for photocatalytic phenol photo-oxidation in aqueous solution

Google Scholar

👨‍🔬 I Fatimah, K Wijaya

📚 Arabian Journal of Chemistry 8 (2), 228-232, 2015

2015

49

Hydroconversion of used palm cooking oil into bio-jet fuel over phosphoric acid-modified nano-zirconia catalyst

Google Scholar

👨‍🔬 AJ Saviola, K Wijaya, A Syoufian, WD Saputri, DA Saputra, ITA Aziz, ...

📚 Case Studies in Chemical and Environmental Engineering 9, 100653, 2024

2024

50

Bio-oil hydrodeoxygenation over acid activated-zeolite with different Si/Al ratio

Google Scholar

👨‍🔬 S Gea, I Irvan, K Wijaya, A Nadia, AN Pulungan, JL Sihombing, R Rahayu

📚 Biofuel Research Journal 9 (2), 1630-1639, 2022

2022

51

The effective combination of zirconia superacid and zirconia-impregnated CaO in biodiesel manufacturing: Utilization of used coconut cooking oil (UCCO)

Google Scholar

👨‍🔬 EP Sari, K Wijaya, W Trisunaryanti, A Syoufian, H Hasanudin, WD Saputri

📚 International Journal of Energy and Environmental Engineering 13 (3), 967-978, 2022

2022

52

Kinetic model of crude palm oil hydrocracking over Ni/Mo ZrO2–pillared bentonite catalyst

Google Scholar

👨‍🔬 H Hasanudin, A Rachmat, M Said, K Wijaya

📚 Periodica Polytechnica Chemical Engineering 64 (2), 238-247, 2020

2020

53

Reaction kinetics of free fatty acids esterification in palm fatty acid distillate using coconut shell biochar sulfonated catalyst

Google Scholar

👨‍🔬 A Hidayat, Rochmadi, K Wijaya, A Budiman

📚 AIP Conference Proceedings 1699 (1), 050005, 2015

2015

54

Comparison of activated carbons prepared from Indonesian forest and agricultural residues.

Google Scholar

👨‍🔬 A Hidayat, RO ROchmadi, K Wijaya, H Hinode, A Budiman

2012

55

Salt-dependent binding of iron (II) mixed-ligand complexes containing 1, 10-phenanthroline and dipyrido [3, 2-a: 2′, 3′-c] phenazine to calf thymus DNA

Google Scholar

👨‍🔬 K Wijaya, ET Wahyuni, N Yoshioka, H Inoue

📚 Biophysical chemistry 121 (1), 44-50, 2006

2006

56

Nickel-modified sulfated zirconia catalyst: synthesis and application for transforming waste cooking oil into biogasoline via a hydrocracking process

Google Scholar

👨‍🔬 K Wijaya, M Utami, AK Damayanti, I Tahir, AD Tikoalu, R Rajagopal, ...

📚 Fuel 322, 124152, 2022

2022

57

Synthesis ZrO2-montmorillonite and application as catalyst in catalytic cracking of heavy fraction of crude oil

Google Scholar

👨‍🔬 I Fatimah, K Wijaya, KH Setyawan

📚 Bulletin of Chemical Reaction Engineering & Catalysis 3 (1-3), 9-13, 2008

2008

58

Recycling of nickel metal from spent nickel-manganese-cobalt (NMC) cathode batteries using H3PO4–H2C2O4 solution combination as an efficient leaching agent

Google Scholar

👨‍🔬 A Bhagaskara, DA Saputra, AJ Saviola, K Wijaya, WC Oh, S Rahayu, ...

📚 Case Studies in Chemical and Environmental Engineering 10, 100844, 2024

2024

59

Microwave-assisted green synthesis of nitrobenzene using sulfated natural zeolite as a potential solid acid catalyst

Google Scholar

👨‍🔬 AJ Saviola, K Wijaya, WD Saputri, L Hauli, AK Amin, H Ismail, ...

📚 Applied Nanoscience 13 (9), 6575-6589, 2023

2023

60

Synthesis and characterization of ZrO2-pillared bentonites

Google Scholar

👨‍🔬 A Suseno, K Wijaya, W Trisunaryanti, M Shidiq

📚 Asian Journal of Chemistry 27 (7), 2619-2623, 2015

2015

61

Hydrocracking of palm oil into biogasoline catalyzed by Cr/natural zeolite.

Google Scholar

👨‍🔬 K Wijaya, G Baobalabuana, W Trisunaryanti, A Syoufian

2013

62

Hydrocracking of oil residue from palm oil mill effluent to biofuel

Google Scholar

👨‍🔬 H Hasanudin, MH Said, M Faizal, MH Dahlan, K Wijaya

📚 Sustainable Environment Research 22 (6), 395-400, 2012

2012

63

Application of Mesoporous NiMo/Silica (NiMo/SiO2) as a Catalyst in the Hydrocracking of Used Cooking Oil into Jet Fuel

Google Scholar

👨‍🔬 RH Agharadatu, K Wijaya, Prastyo, Wangsa, L Hauli, WC Oh

📚 Silicon 16 (1), 331-343, 2024

2024

64

High effectiveness self-cleaning activity on TiO2/rGO nanocomposite synthesized by mangosteen (Garcinia mangostana L.) peel extract

Google Scholar

👨‍🔬 M Utami, LS Rahmadhani, K Wijaya, B Ravindran, MW Alam, L Hauli, ...

📚 Results in Engineering 24, 103593, 2024

2024

65

Preparation of Mo-impregnated mordenite catalysts for the conversion of refined kernel palm oil into bioavtur

Google Scholar

👨‍🔬 W Trisunaryanti, K Wijaya, I Kartini, S Purwono, A Mara, A Budiyansah

📚 Communications in Science and Technology 8 (2), 226-234, 2023

2023

66

Synthesis of biodiesel from castor oil catalyzed by sodium hydroxide dispersed on bentonite

Google Scholar

👨‍🔬 M Utami, P Setiawan, II Falah, M Shidiq, K Wijaya, T Jarin, ...

📚 Sustainable Energy Technologies and Assessments 53, 102526, 2022

2022

67

Synthesis of iron oxide-montmorillonite composite and study of its structural stability againts sulfuric acid

Google Scholar

👨‍🔬 K Wijaya, E Sugiharto, M Mudasir, I Tahir, I Liawati

📚 Indonesian Journal of Chemistry 4 (1), 33-42, 2010

2010

68

Fotodegradasi Zat Warna Methyl Orange Menggunakan Fe2O3-Montmorillonit dan Sinar Ultraviolet

Google Scholar

👨‍🔬 Y Dhamayanti, K Wijaya, I Tahir

📚 Proseding Seminar Nasional DIES ke 50 FMIPA UGM, 22-29, 2005

2005

69

DNA-Binding Properties of Iron (II) Mixed-Ligand Complexes Containing 1, 10-Phenanthroline and Dipyrido [3, 2-a: 2’, 3’-c] phenazine

Google Scholar

👨‍🔬 Mudasir, K Wijaya, DH Tjahjono, N Yoshioka, H Inoue

📚 Zeitschrift für Naturforschung B 59 (3), 310-318, 2004

2004

70

Atmospheric hydrotreatment of used palm cooking oil over nickel-dispersed phosphated zirconia as highly stable nano-catalyst for bio-jet fuel production

Google Scholar

👨‍🔬 AJ Saviola, A Syoufian, WC Oh, K Wijaya

📚 Inorganic Chemistry Communications 173, 113790, 2025

2025

71

Enhanced catalytic conversion of palm oil into biofuels by Cr-incorporated sulphated zirconia

Google Scholar

👨‍🔬 M Utami, R Safitri, MF Pradipta, K Wijaya, SW Chang, B Ravindran, D Ovi, ...

📚 Materials Letters 309, 131472, 2022

2022

72

Unveiling the potency of graphene-based materials for water remediation: A brief review

Google Scholar

👨‍🔬 DY Lestari, K Wijaya, A Syoufian, PL Hariani, M Utami, AJ Saviola, ...

📚 Journal of Molecular Structure 1335, 142018, 2025

2025

73

Dehydration Isopropyl Alcohol to Diisopropyl Ether over Molybdenum Phosphide Pillared Bentonite.

Google Scholar

👨‍🔬 H Hasanudin, WR Asri, K Tampubolon, F Riyanti, W Purwaningrum, ...

📚 Pertanika Journal of Science & Technology 30 (2), 2022

2022

74

Dealuminated and Desilicated Natural Zeolite as a Catalyst for Hydrocracking of Used Cooking Oil into Biogasoline

Google Scholar

👨‍🔬 SE Purba, K Wijaya, W Trisunaryanti, RA Pratika

📚 Mediterranean Journal of Chemistry 11 (1), 75-83, 2021

2021

75

The Synthesis OF Cr2O3-Pillared Monmorillonite (CrPM) and Its Usage for Host Material of p-Nitroaniline

Google Scholar

👨‍🔬 K Wijaya, I Tahir, A Baikuni

📚 Indo. J. Chem 2 (1), 12-21, 2002

2002

76

Preparasi dan karakterisasi lempung montmorillonit teraktivasi asam terpilar TiO2

Google Scholar

👨‍🔬 IN SIMPEN

📚 Universitas Gadjah Mada, 2001

2001

77

1, 4, 7, 10-Tetraoxacyclododecane–acetone thiosemicarbazone (1/2)

Google Scholar

👨‍🔬 O Moers, K Wijaya, PG Jones, A Blaschette

📚 Crystal Structure Communications 55 (9), 1542-1545, 1999

1999

78

2D MXene-polymer based composites for biomedical applications

Google Scholar

👨‍🔬 L Kabir, K Wijaya, S Sagadevan, J Unruangsri, K Ullah, WC Oh

📚 Journal of Alloys and Compounds 1031, 181068, 2025

2025

79

Effect of sulfuric acid treatment and calcination on natural zeolites of Indonesia

Google Scholar

👨‍🔬 A Mara, K Wijaya, WT Mudasir

📚 Asian Journal of Chemistry 28 (1), 11, 2016

2016

80

Hydrocracking of used cooking oil into biofuel catalyzed by nickel-bentonite.

Google Scholar

👨‍🔬 K Wijaya, A Syoufian, SD Ariantika

2014

81

Kamalia, 2006, Titan Dioksida Terdispersi Pada Zeolit Alam (Tio2/Zeolit) Dan Aplikasinya Untuk Fotodegradasi Congo Red

Google Scholar

👨‍🔬 I Fatimah, E Sugiharto, K Wijaya, I Tahir

📚 Indonesian Journal of Chemistry 69 (1), 38-42, 2006

2006

82

Fotodegradasi metilen biru menggunakan katalis TiO2-montmorilonit dan sinar UV

Google Scholar

👨‍🔬 IK Sumerta, K Wijaya, I Tahir

📚 Paper dipresentasikan pada Seminar Nasional Pendidikan Kimia, Yogyakarta …, 2002

2002

83

Representative modeling of biocompatible MXene nanocomposites for next-generation biomedical technologies and healthcare

Google Scholar

👨‍🔬 S Srikrajang, L Kabir, S Sagadevan, K Wijaya, WC Oh

📚 Journal of Materials Chemistry B 13 (9), 2912-2951, 2025

2025

84

Preparation of Ni/ZSM-5 and Mo/ZSM-5 catalysts for hydrotreating palm oil into biojet fuel

Google Scholar

👨‍🔬 W Trisunaryanti, K Wijaya, AM Tazkia

📚 Communications in Science and Technology 9 (1), 161-169, 2024

2024

85

Facile Synthesis of Various ZrO2 Phases and ZrO2-MO2 (M = Ti, Hf) by Thermal Decomposition of a Single UiO-66 Precursor for Photodegradation of Methyl …

Google Scholar

👨‍🔬 INA Jannah, HF Sekarsari, S Mulijani, K Wijaya, AC Wibowo, A Patah

📚 Catalysts 12 (6), 609, 2022

2022

86

Performance of Ni-Mo sulfated nanozirconia catalyst for conversion of waste cooking oil into biofuel via hydrocracking process

Google Scholar

👨‍🔬 A Hanifa, A Nadia, WD Saputri, A Syoufian, K Wijaya

📚 Materials Science Forum 1045, 79-89, 2021

2021

87

Synthesis of Co, Mo, Co-Mo and Mo-Co catalysts, supported on mesoporous silica-alumina for hydrocracking of α-cellulose pyrolysis oil

Google Scholar

👨‍🔬 MF Marsuki, W Trisunaryanti, II Falah, K Wijaya

📚 Orient J Chem 34 (2), 955-962, 2018

2018

88

Synthesis and characterization of Ni-Cu doped zirconia-pillared bentonite

Google Scholar

👨‍🔬 A Suseno, K Wijaya, W Trisunaryanti

📚 Oriental Journal of Chemistry 34 (3), 1427, 2018

2018

89

Seminar on Chemometrics-Chemistry Dept Gadjah Mada University

Google Scholar

👨‍🔬 I Tahir, K Wijaya, D Widianingsih

📚 Terapan Analisis Hansch Untuk Aktivitas Antioksidan senyawa Turunan Flavon …, 2003

2003

90

I., Liawati, I.(2004) Sintesis komposit oksida besi montmorillonit dan uji stabilitas strukturnya terhadap asam sulfat

Google Scholar

👨‍🔬 K Wijaya, E Sugiharto, IT Mudasir

📚 Indonesian Journal of Chemistry 4, 33-42, 0

91

Hydrodeoxygenation of refined palm kernel oil (RPKO) into bio-jet fuel using Mo/H-ZSM-5 catalysts

Google Scholar

👨‍🔬 W Trisunaryanti, K Wijaya, I Kartini, S Purwono, Rodiansono, A Mara, ...

📚 Reaction Kinetics, Mechanisms and Catalysis 137 (2), 843-878, 2024

2024

92

Performance of hydrothermally prepared NiMo dispersed on sulfated zirconia nano-catalyst in the conversion of used palm cooking oil into jet fuel range bio-hydrocarbons

Google Scholar

👨‍🔬 K Wijaya, AJ Saviola, AK Amin, MF Vebryana, A Bhagaskara, HA Ekawati, ...

📚 Bulletin of Chemical Reaction Engineering & Catalysis 19 (2), 361-371, 2024

2024

93

Recent trends and application of nanomaterial based on carbon paste electrodes: a short review

Google Scholar

👨‍🔬 K Wijaya, RA Pratika, A Nadia, F Rahmawati, R Zainul, WC Oh, ...

📚 Transdisciplinary Research and Education Center for Green Technologies …, 2023

2023

94

Bio-oil hydrodeoxygenation over zeolite-based catalyst: the effect of zeolite activation and nickel loading on product characteristics

Google Scholar

👨‍🔬 S Gea, Irvan, K Wijaya, A Nadia, AN Pulungan, JL Sihombing, Rahayu

📚 International Journal of Energy and Environmental Engineering 13 (2), 541-553, 2022

2022

95

Kalium hydroxide/zirconia pillared bentonite for palm oil transesterification

Google Scholar

👨‍🔬 Y Utubira, K Wijaya, ES Kunarti

📚 Oriental Journal of Chemistry 34 (3), 1484, 2018

2018

96

Effect of koh as stabilizer on mechanical and chemical properties of liquid rubber compound

Google Scholar

👨‍🔬 TD Sutanto, B Setiaji, K Wijaya, TE Suharto

📚 Asian Journal of Chemistry 26 (24), 8371, 2014

2014

97

Nanomaterial Berlapis dan Berpori: Sintesis, Karakterisasi dan Perannya sebagai Material Multi Fungsi

Google Scholar

👨‍🔬 K Wijaya

📚 Universitas Gajah Mada, Fakultas Matematika dan Ilmu Pengetahuan Alam …, 2010

2010

98

PHOTODEGRADATION OF ALIZARIN S DYE USING TiO 2-ZEOLITE AND UV RADIATION

Google Scholar

👨‍🔬 K Wijaya, E Sugiharto, I Fatimah, I Tahir, R Rudatiningsih

📚 Indonesian Journal of Chemistry 6 (1), 32-37, 2010

2010

99

Pengaruh Metode Preparasi Terhadap Karakter Fisikokimiawi Montmorillonit Termodifikasi ZrO2

Google Scholar

👨‍🔬 I Fatimah, K Wijaya

📚 Akta Kimindo 1 (2), 87-92, 2006

2006

100

Polysulfonylamines. CIX. 1, 2, 4-Triazolium di (methanesulfonyl) amidate

Google Scholar

👨‍🔬 O Moers, K Wijaya, PG Jones, A Blaschette

📚 Crystal Structure Communications 55 (5), 754-756, 1999

1999

101

Polysulfonylamines. CI. 1, 4, 7, 10-Tetraoxacyclododecane–Di (benzenesulfonyl) amine (1/2)

Google Scholar

👨‍🔬 K Wijaya, O Moers, PG Jones, A Blaschette

📚 Crystal Structure Communications 54 (6), 818-820, 1998

1998

102

Triyono, & Sugiharto, E.(2006). Preparasi dan Karakterisasi TiO2-Zeolit Serta Pengujiannya pada Degradasi Limbah Industri Tekstil secara Fotokatalitik, Indo

Google Scholar

👨‍🔬 Y Utubira, K Wijaya

📚 J. Chem 6 (3), 231-237, 0

103

Conversion of Used Cooking Oil into Biodiesel by Utilizing Zirconia Catalyst as Acid Catalyst (SO4/ZrO2) and Base Catalyst (ZrO2/CaO)

Google Scholar

👨‍🔬 RA Pratika, Z Nafisah, Y Yuliana, S Syarpin, RM Iqbal, Y Ysrafil, K Wijaya

📚 Arabian Journal for Science and Engineering 50 (9), 6595-6608, 2025

2025

104

Progressive MXene-based photocatalytic and electrocatalytic sustainable reduction of CO 2 to chemicals: comprehensive review and future directions

Google Scholar

👨‍🔬 L Kabir, K Wijaya, WC Oh

📚 Sustainable Energy & Fuels 8 (12), 2535-2569, 2024

2024

105

Production of levulinic acid from glucose using nickel phosphate-silica catalyst

Google Scholar

👨‍🔬 QU Putri, H Hasanudin, WR Asri, A Mara, R Maryana, S Gea, K Wijaya

📚 Reaction Kinetics, Mechanisms and Catalysis 136 (1), 287-309, 2023

2023

106

Synthesis of Nickel-loaded sulfated zirconia catalyst and its application for converting used palm cooking oil to gasoline via hydrocracking process

Google Scholar

👨‍🔬 ITA Aziz, WD Saputri, W Trisunaryanti, S Sudiono, A Syoufian, A Budiman, ...

📚 Periodica Polytechnica Chemical Engineering 66 (1), 101-113, 2022

2022

107

Effect of promoters and calcination temperature on surface and acidity of modified zirconia

Google Scholar

👨‍🔬 AK Amin, W Trisunaryanti, K Wijaya

📚 Journal of Nano Research 57, 31-39, 2019

2019

108

Removal of free fatty acid in Palm Fatty Acid Distillate using sulfonated carbon catalyst derived from biomass wastefor biodiesel production

Google Scholar

👨‍🔬 A Hidayat, Rochmadi, K Wijaya, A Budiman

📚 IOP Conference Series: Materials Science and Engineering 105 (1), 012026, 2016

2016

109

Biodiesel Dari Minyak Goreng Bekas

Google Scholar

👨‍🔬 K Wijaya

📚 Diakses dari http://www. pse. ugm. ac. id, 2011

2011

110

Study of Thermal and Acid Stability of Bentonite Clay

Google Scholar

👨‍🔬 K Wijaya, AS Pratiwi, S Sudiono, E Nurahmi

📚 Indonesian Journal of Chemistry 2 (1), 22-29, 2010

2010

111

Electro-degradation of reactive blue dyes using cylinder modified electrode: Ti/β-PbO 2 as dimensionally stable anode

Google Scholar

👨‍🔬 A Mukimin, K Wijaya, A Kuncaka

📚 Indonesian Journal of Chemistry 10 (3), 285-289, 2010

2010

112

A comparative study on aluminium pillared smectite synthesis from synthetic saponite and Indonesian montmorillonite

Google Scholar

👨‍🔬 I Fatimah, S Wang, K Wijaya, A NARSITO

📚 Asean J. Chem. Eng 8 (1), 69-77, 2008

2008

113

Synthesis Of Fe 2 O 3-Montmorillonite And Its Application As A Photocatalyst For Degradation Of Congo Red Dye

Google Scholar

👨‍🔬 K Wijaya, I Tahir, N Haryanti

📚 Indonesian Journal of Chemistry 5 (1), 41-47, 2005

2005

114

Sintesis Fe2O3-Monmorillonite dan Aplikasinya sebagai Fotokatalis untuk Degradasi Zat Pewarna Congo Red

Google Scholar

👨‍🔬 K Wijaya, I Tahir, N Haryanti

📚 Indonesian Journal of Chemistry 5 (1), 41-47, 2005

2005

115

Polysulfonylamines, CLIII. Weak hydrogen bonding with activated methyl donors: Crystal structures of cholinium, betainium and dimethyl [2-(dimethylamino) ethyl] ammonium …

Google Scholar

👨‍🔬 D Henschel, O Moers, K Wijaya, A Wirth, A Blaschette, PG Jones

📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 57 (5 …, 2002

2002

116

Synthesis of cobalt-dispersed sulfated zirconia nanocatalyst for the hydroconversion of used palm cooking oil into bio-jet fuel

Google Scholar

👨‍🔬 RA Fitria, N Prasetyo, AJ Saviola, W Trisunaryanti, A Syoufian, AK Amin, ...

📚 Case Studies in Chemical and Environmental Engineering 11, 101052, 2025

2025

117

Utilization of laboratory glove waste for fuel production through pyrolysis-hydrocracking consecutive process catalyzed by sulfated Indonesian natural zeolite

Google Scholar

👨‍🔬 W Wangsa, AJ Saviola, K Wijaya, A Bhagaskara, L Hauli, DA Saputra

📚 Reaction Kinetics, Mechanisms and Catalysis 137 (3), 1495-1514, 2024

2024

118

Bandgap energy controlling and electrochemical performances of quaternary metal oxide combined graphene-TiO2 nanocomposite and its photocatalytic hydrogen evolution

Google Scholar

👨‍🔬 K Ullah, KS Cho, K Wijaya, WC Oh

📚 Inorganic Chemistry Communications 167, 112541, 2024

2024

119

Effect of arrangements in an atmospheric hydrotreating reactor of cobalt and/or molybdenum dispersed on activated carbon catalysts toward bio-jet fuel production from refined …

Google Scholar

👨‍🔬 A Yulianto, W Trisunaryanti, T Triyono, AJ Saviola, K Wijaya, I Kartini, ...

📚 Case Studies in Chemical and Environmental Engineering 10, 100894, 2024

2024

120

A review for MXene-based hybrid nanocomposites toward electro-/photocatalytic hydrogen evolution reactions

Google Scholar

👨‍🔬 L Kabir, K Wijaya, J Li, J Unruangsri, WC Oh

📚 Journal of Environmental Chemical Engineering 12 (6), 114483, 2024

2024

121

Silica-based catalysts for biodiesel production: a brief review

Google Scholar

👨‍🔬 A Aneu, RA Pratika, Hasanudin, S Gea, K Wijaya, WC Oh

📚 Silicon 15 (12), 5037-5047, 2023

2023

122

Montmorillonite-zirconium phosphate catalysts for methanol dehydration

Google Scholar

👨‍🔬 H Hasanudin, WR Asri, QU Putri, Z Fanani, D Bahrin, TE Agustina, ...

📚 Iranian Journal of Catalysis 12 (3), 2022

2022

123

QSAR modeling for predicting the antifungal activities of gemini imidazolium surfactants against Candida albicans using GA-MLR methods

Google Scholar

👨‍🔬 E Setiawan, K Wijaya, M Mudasir

📚 Journal of Applied Pharmaceutical Science 11 (4), 022-027, 2021

2021

124

Preparation of Cr metal supported on sulfated zirconia catalyst

Google Scholar

👨‍🔬 L Hauli, K Wijaya, RIA Armunanto

📚 Materials Science Forum 948, 221-227, 2019

2019

125

The Jahn-Teller effect in mixed aqueous solution: the solvation of Cu2+ in 18.6% aqueous ammonia obtained from ab initio quantum mechanical charge field …

Google Scholar

👨‍🔬 WD Saputri, K Wijaya, HD Pranowo, TS Hofer

📚 Pure and Applied Chemistry 91 (10), 1553-1565, 2019

2019

126

Synthesis and Characteristics of the Magnetic Properties of Fe3O4-(CTAB-montmorillonite) Composites, based on Variation in Fe3+/Fe2+ Concentrations.

Google Scholar

👨‍🔬 SH Siregar, K Wijaya, ES Kunarti, A Syoufian

📚 Oriental journal of chemistry 34 (2), 2018

2018

127

Synthesis of Cr/Al2O3- Bentonite Nanocomposite as the Hydrocracking Catalyst of Castor Oil

Google Scholar

👨‍🔬 K Wijaya, AD Ariyanti, I Tahir, A Syoufian, A Rachmat, H Hasanudin

📚 Nano Hybrids and Composites 19, 46-54, 2018

2018

128

Penggunaan metode semiempirik AM1 untuk pemilihan monomer fungsional efektif pada prasintesis polimer tercetak diazinon

Google Scholar

👨‍🔬 A Saputra

📚 Jurnal Kimia Valensi, 2017

2017

129

EFFECT of scandium on hidrogen dissociation energy at magnesium surface: Ab initio dft study

Google Scholar

👨‍🔬 IW Sutapa, R Armunanto, K Wijaya

📚 Indonesian Journal of Chemistry 10 (2), 184-188, 2010

2010

130

Preparation of TiO2/Alumunium Pillared Montmorillonite and its Aplication for methylene Blue Photodegradation under UV Illumination

Google Scholar

👨‍🔬 I Fatimah, K Wijaya, N Narsito, S Wang

📚 World journal of Chemistry 4 (1), 21-26, 2009

2009

131

Polysulfonylamine, CLXX [1]. Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Drei Strukturen mit NH2-substituierten 1,3,5-Triazinium-Kationen (einschließlich …

Google Scholar

👨‍🔬 K Wijaya, O Moers, D Henschel, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung B 59 (7), 747-756, 2004

2004

132

Polysulfonylamine, XCVI [1]. Homokonjugate aus Di (organosulfonyl) aminen und ihren konjugierten Anionen: Vier Kristallstrukturen mit asymmetrischen [N-H··· N …

Google Scholar

👨‍🔬 K Wijaya, D Henschel, O Moers, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung B 52 (10), 1219-1228, 1997

1997

133

Facile green synthesis of silver nanoparticles decorated on sulfonated graphene oxide by rambutan (Nephelium lappaceum) leaf extract and application as a catalyst for …

Google Scholar

👨‍🔬 DY Lestari, A Syoufian, PL Hariani, AJ Saviola, WC Oh, AK Amin, ...

📚 Results in Engineering 25, 104321, 2025

2025

134

Sonochemically modified lapindo mud using sulfuric acid for efficient adsorption of phenol in aqueous media and real wastewater samples

Google Scholar

👨‍🔬 K Wijaya, A Bhagaskara, MFM Sani, MF Vebryana, FA Pratama, ...

📚 Bulletin of Chemical Reaction Engineering & Catalysis 19 (4), 635-648, 2024

2024

135

Investigation of the preferential solvation and dynamical properties of Cu+ in 18.6% aqueous ammonia solution using ab initio quantum mechanical charge field (QMCF) molecular …

Google Scholar

👨‍🔬 WD Saputri, Y Hidayat, K Wijaya, HD Pranowo, TS Hofer

📚 Journal of Molecular Liquids 275, 859-866, 2019

2019

136

Pengaruh Pemanasan Terhadap Kristalinitas Dan Parameter Kisi Nanokomposit Silika-Zirkonia Montmorillonit K10 Dan Silika-Besi Oksida Montmorillonit K10

Google Scholar

👨‍🔬 S Sekewael

📚 Indo. J. Chem. Res., 2018

2018

137

Preparation and characterization of montmorillonite-cetyl trimethylammonium bromide

Google Scholar

👨‍🔬 SH Siregar, K Wijaya, ES Kunarti, A Syoufian

📚 Asian Journal of Chemistry 30 (1), 25-28, 2017

2017

138

Mg/Al hydrotalcite-like synthesized from brine water for eosin yellow removal

Google Scholar

👨‍🔬 E Heraldy, T Triyono, K Wijaya, SJ Santosa

📚 Indonesian Journal of Chemistry 11 (2), 117-123, 2011

2011

139

Synthesis of Mg/Al Hydrotalcite-like from Brine Water and Its Application for Methyl Orange Removal: A Preliminary Study

Google Scholar

👨‍🔬 E Heraldy, T Triyono

📚 Makara Journal of Science 15 (1), 17, 2011

2011

140

Terapan Analisis Hansch Untuk Aktivitas Antioksidan senyawa Turunan Flavon

Google Scholar

👨‍🔬 I Tahir, K Wijaya, D Wdianingsih, B Purwono

📚 Flavonol. Jogjakarta. Makalah Seminar Khemometri. Jurusan Kimia FMIPA UGM, 2003

2003

141

Sintesis lempung terpilar Cr2O3 dan pemanfaatannya sebagai inang senyawa p-nitroanalin

Google Scholar

👨‍🔬 K Wijaya, I Tahir, A Bakuni

📚 Indonesia Jurnal of Chemistry 2 (1), 12-21, 2002

2002

142

Lempung Terpilar (Pillared Clay) sebagai Material Multiguna

Google Scholar

👨‍🔬 K Wijaya

📚 Jurnal Ilmu Kimia, FMIPA UIII, Yogyakarta 1, 1-10, 2000

2000

143

Polysulfonylamines, CXXVI-Hydrogen bonding in crystalline onium dimesylamides: A robust eight-membered ring synthon in coexistence with a third hydrogen bonding motif …

Google Scholar

👨‍🔬 O Moers, K Wijaya, I Lange, A Blaschette, PG Jones

📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 55 (8 …, 2000

2000

144

Exploring non-conventional techniques in biodiesel production: A brief review

Google Scholar

👨‍🔬 D Krisdiyanto, K Wijaya, A Syoufian, AJ Saviola, RA Fitria, ...

📚 Molecular Catalysis 584, 115289, 2025

2025

145

Modification of TiO2 as SO4/TiO2 Acid and CaO/TiO2 Base Catalysts and Their Applications in Conversion of Waste Frying Oil (WFO) into Biodiesel

Google Scholar

👨‍🔬 K Wijaya, RA Pratika, W Trisunaryanti, AD Tikoalu

📚 Advances in Catalysts Research, 377-414, 2024

2024

146

MgO/γ-Alumina and CaO/γ-Alumina Catalysts for The Transesterification of Castor Oil (Ricinus Communis) into Biodiesel

Google Scholar

👨‍🔬 DA Saputra, AK Amin, K Wijaya, T Triyono, W Trisunaryanti, ...

📚 Iranian Journal of Chemistry and Chemical Engineering 43 (4), 1622-1634, 2024

2024

147

Optimizing nitrobenzene synthesis catalyzed by sulfated silica (SO4/SiO2) through response surface methodological approach

Google Scholar

👨‍🔬 A Sabilladin, AJ Saviola, K Wijaya, AS Hutama, MF Pradipta, WD Saputri, ...

📚 Korean Journal of Materials Research 34 (7), 341-354, 2024

2024

148

Efficient conversion of used palm cooking oil into biogasoline over hydrothermally prepared sulfated mesoporous silica loaded with NiMo catalyst

Google Scholar

👨‍🔬 K Wijaya, S Ramadhani, AJ Saviola, N Prasetyo, S Gea, L Hauli, AK Amin, ...

📚 Results in Engineering 24, 103185, 2024

2024

149

Synthesis of SO4/ZrO2 catalyst and its application in the conversion of ethanol to diethyl ether

Google Scholar

👨‍🔬 R Septiyaningrum, AK Amin, W Trisunaryanti, K Wijaya

📚 IRANIAN JOURNAL OF CATALYSIS 12 (4), 439-450, 2022

2022

150

Synthesis and application of Na2O/ZrO2 nanocomposite for microwave-assisted transesterification of castor oil

Google Scholar

👨‍🔬 D Hidayat, A Syoufian, M Utami, K Wijaya

📚 ICS Physical Chemistry 1 (1), 26-26, 2021

2021

151

Chemical modification of montmorillonite K10 and its catalytic activity

Google Scholar

👨‍🔬 S Sekewael

📚 Asian Journal of Chemistry, 2020

2020

152

Catalytic Synthesis of Diethanolamide Surfactant from Used Cooking Oil

Google Scholar

👨‍🔬 M Utami, K Wijaya, A Syoufian, SH Wicaksono

📚 EKSAKTA: Journal of Sciences and Data Analysis, 133-138, 2020

2020

153

Pilarisasi dan karakterisasi montmorillonit

Google Scholar

👨‍🔬 Y Istinia, K Wijaya, I Tahir, M Mudasir

📚 Jurnal Sains Materi Indonesia 4 (3), 1-7, 2018

2018

154

Determination of effective functional monomer and solvent for R (+)-cathinone imprinted polymer using density functional theory and molecular dynamics simulation approaches

Google Scholar

👨‍🔬 A Saputra, K Wijaya, R Armunanto, L Tania, I Tahir

📚 Indonesian Journal of Chemistry 17 (3), 516-522, 2017

2017

155

Nanomaterial: Aplikasinya dalam Pembuatan Biofuel

Google Scholar

👨‍🔬 K Wijaya, K Hadi, AT Herlina, Idra, Kurnia

📚 Gadjah Mada University Press 1, 225, 2016

2016

156

Biofuel di Indonesia: Prospek, Perspektif dan Strategi Pengembangannya

Google Scholar

👨‍🔬 K Wijaya

📚 Yogyakarta: Universitas Gadjah Mada, 2012

2012

157

Polysulfonylamines. CXXXII.

Google Scholar

👨‍🔬 K Wijaya, O Moers, PG Jones, A Blaschette

📚 Crystal Structure Communications 57 (2), 167-169, 2001

2001

158

I. & Asean, F.(2003). Inklusi Senyawa P-Nitroanilin ke dalam Pori-pori Montmorillionit Terpilar TiO2

Google Scholar

👨‍🔬 K Wijaya, T Mudasir

📚 Jurnal Kimia 2 (6), 84-94, 0

159

Advances in electrochemical technologies for sustainable wastewater treatment and chemical synthesis: mechanisms, challenges, and prospects

Google Scholar

👨‍🔬 R Zainul, R Chaya, K Wijaya, F Rahmawati, IA Laghari, D Rahmadiawan, ...

📚 Journal of Medicinal and Pharmaceutical Chemistry Research 6 (2), 140-156, 2024

2024

160

Highly Active Mesoporous Zirconium Nitride Immobilized on SiO2 Synthesized by Complex-Assisted Method with EDTA and KHP for Catalytic Hydroconversion of …

Google Scholar

👨‍🔬 WR Asri, H Hasanudin, K Wijaya

📚 Catalysis Surveys from Asia 28 (1), 74-87, 2024

2024

161

Preparation and catalytic evaluation of phosphated zirconia nanopowder for ethanol dehydration into diethyl ether

Google Scholar

👨‍🔬 A Alifi, AJ Saviola, K Wijaya, A Syoufian, N Prasetyo, P Wahyuningsih, ...

📚 Journal of the Indian Chemical Society 101 (8), 101204, 2024

2024

162

Synthesis of SO42–/ZrO2 solid acid and Na2O/ZrO2 solid base catalysts using hydrothermal method for biodiesel production from low-grade crude palm oil

Google Scholar

👨‍🔬 S Setyaningsih, M Utami, A Syoufian, E Heraldy, NW Yuwono, K Wijaya

📚 Indonesian Journal of Chemistry 22 (1), 17-34, 2022

2022

163

Simultaneous Extraction and In-Situ Transesterification of Chlorella vulgaris Using Microwave-Assisted Method for Biodiesel Production

Google Scholar

👨‍🔬 R Adhiputra, M Utami, EA Suyono, A Budiman, PL Hariani, A Setyopratiwi, ...

📚 Korean Journal of Materials Research 31 (4), 181-187, 2021

2021

164

Optimizations of microwave-assisted extraction and transesterification of bio-crude oil from spirulina (Arthrospira platensis)

Google Scholar

👨‍🔬 A Purnama, K Wijaya, I Tahir, EA Suyono, A Budiman

📚 Korean Journal of Chemical Engineering 37 (3), 466-474, 2020

2020

165

Chrom/Nanocomposite ZrO2- Pillared Bentonite Catalyst for Castor Oil (Ricinus communis) Hydrocracking

Google Scholar

👨‍🔬 K Wijaya, A Syoufian, A Fitroturokhmah, W Trisunaryanti, D Adi Saputra, ...

📚 Nano Hybrids and Composites 27, 31-37, 2019

2019

166

Investigation of the structural and dynamical properties of Cu+ in liquid ammonia: a quantum mechanical charge field (QMCF) molecular dynamics study

Google Scholar

👨‍🔬 WD Saputri, K Wijaya, R Armunanto

📚 Indonesian Journal of Chemistry 17 (3), 531-537, 2017

2017

167

Kunarti, Microwave assisted preparation of zirconiapillared bentonite

Google Scholar

👨‍🔬 Y Utubira, K Wijaya, ES Triyono

📚 Int. J. ChemTech Res 9, 475-482, 2016

2016

168

Microwave Assisted Preparation and Physico-Chemical Properties of Mixed Oxides Silica-Zirconia Montmorillonite K10 Nanocomposite

Google Scholar

👨‍🔬 SJ Sekewael, K Wijaya, A Budiman

📚 Asian Journal of Chemistry 28 (10), 2325, 2016

2016

169

Synthesis and Application of Alumina Pillared Bentonite Catalyst for Esterification of Acetic Acid with Different Alcohols.

Google Scholar

👨‍🔬 P Wahyuningsih, K Wijaya, W Trisunaryanti, A Mara

📚 Asian Journal of Chemistry 27 (4), 2015

2015

170

Synthesis of Biogasoline from Used Palm Cooking Oil Through Catalytic Hydrocracking by Using Cr-Activated Natural Zeolite as Catalyst.

Google Scholar

👨‍🔬 K Wijaya, M Shidiq, M Fahrurrozi

📚 Asian Journal of Chemistry 26 (16), 2014

2014

171

Preparasi komposit Krom Oksida-Montmorillonit dan aplikasinya untuk sorpsi Benzena

Google Scholar

👨‍🔬 I NEGARA

📚 Universitas Gadjah Mada, 2005

2005

172

Polysulfonylamines, CLXVII [1]. Hydrogen bonding in crystalline onium dimesylamides: A robust three-point pattern integrated into a 2D, a twofold interwoven 2D, or a 3D …

Google Scholar

👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones

📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 59 (1 …, 2004

2004

173

Multifunction Of Layered And Porous Materials= Bahan Berlapis dan Berpori Sebagai Bahan Multifungsi

Google Scholar

👨‍🔬 K Wijaya

📚 Indonesian Journal of Chemistry 2 (2002), 2002

2002

174

Polysulfonylamines. CX. Hydroxylammonium di (methanesulfonyl) amidate 1, 4, 7, 10, 13, 16-hexaoxacyclooctadecane (1/1/1) and 2-aminopyridinium di (methanesulfonyl) amidate 1, 4 …

Google Scholar

👨‍🔬 D Henschel, K Wijaya, PG Jones, A Blaschette

📚 Crystal Structure Communications 55 (4), 664-668, 1999

1999

175

Biogenic synthesis of silver nanoparticles/reduced graphene oxide (AgNPs/rGO) mediated Nephelium lappaceum leaf extract as an effective solid acid catalyst for liquid-phase …

Google Scholar

👨‍🔬 DY Lestari, A Syoufian, PL Hariani, AK Amin, WC Oh, AJ Saviola, ...

📚 Results in Chemistry 13, 102014, 2025

2025

176

Microwave radiation-assisted chitin deacetylation: Optimization by response surface methodology (RSM)

Google Scholar

👨‍🔬 I Tahir, K Wijaya, D Krismayanti, AJ Saviola, RA Wahab, AK Amin, ...

📚 Korean Journal of Materials Research 34 (2), 85-94, 2024

2024

177

Porous Al2O3-pillared bentonite synthesized by sonochemistry and its performance as a catalyst in diethyl ether production via ethanol dehydration

Google Scholar

👨‍🔬 P Wahyuningsih, AJ Saviola, K Wijaya, AS Hutama, WC Oh, L Hauli

📚 Reaction Kinetics, Mechanisms and Catalysis 137 (4), 2231-2252, 2024

2024

178

Fixing cobalt metal onto mordenite through spray impregnation and its evaluation as a catalyst in transforming used coconut cooking oil into bio-jet fuel

Google Scholar

👨‍🔬 AJ Saviola, K Wijaya, A Syoufian, MF Vebryana, W Anggraeni, K Rozana, ...

📚 Communications in Science and Technology 9 (2), 356-365, 2024

2024

179

Sulfuric acid-activated silica gel as a potential solid acid catalyst

Google Scholar

👨‍🔬 W Wangsa, RA Pratika, TS Ningrum, K Wijaya

📚 Key Engineering Materials 920, 159-165, 2022

2022

180

QSPR Models for Predicting Critical Micelle Concentration of Gemini Cationic Surfactants Combining Machine-Learning Methods and Molecular Descriptors

Google Scholar

👨‍🔬 E Setiawan, M Mudasir, K Wijaya

📚 ChemRxiv 2020 (0124), 2020

2020

181

Physico-chemical properties of nickel promoted sulfated zirconia powder prepared using different procedures

Google Scholar

👨‍🔬 AK Amin, W Trisunaryanti, K Wijaya

📚 Asian Journal of Chemistry 32 (3), 555-560, 2020

2020

182

Conversion of bioethanol to diethyl ether catalyzed by sulfuric acid and zeolite

Google Scholar

👨‍🔬 WF Winata, K Wijaya, A Mara, W Kurniawati

📚 J. Idn. Chem. Soc 3, 151-157, 2020

2020

183

Synthesis of H/Bentonite and Ni/Al2O3-bentonite and its application to produce biogasoline from nyamplung seed (Calophyllum inophillum Linn) oil by catalytic hydrocracking

Google Scholar

👨‍🔬 AT Marini, K Wijaya, NA Sasongko

📚 IOP Conference Series: Earth and Environmental Science 124 (1), 012009, 2018

2018

184

Chrome impregnated on Bentonite (Cr-Bentonite) as hydrocracking catalyst of used cooking oil

Google Scholar

👨‍🔬 R Mandey, K Wijaya, A Syoufian

📚 Asian Journal of Chemistry 28 (2), 282, 2016

2016

185

Karakterisasi dan aplikasi katalis nikel-molibdenum teremban pada zeolit alam aktif untuk hidrorengkah tir batubara

Google Scholar

👨‍🔬 DJ Sugianto, K Wijaya, I Tahir

📚 Jurnal Natur Indonesia 16 (1), 10-22, 2014

2014

186

Interaction of iron (ii) mixed-ligand complexes with DNA: Base-pair specificity and thermal denaturation studies

Google Scholar

👨‍🔬 M Mudasir, K Wijaya, ET Wahyuni, H Inoue

📚 Indonesian Journal of Chemistry 4 (3), 174-179, 2010

2010

187

Hubungan kuantitatif struktur-aktivitas antiradikal senyawa turunan flavon/flavonol berdasarkan pendekatan Free-Wilson

Google Scholar

👨‍🔬 I Tahir, K Wijaya, D Widianingsih

📚 Pros. Semin. Nas. Kim. Fis. III, 2003

2003

188

Quantitative relationships between molecular structure and melting point of several organic compounds

Google Scholar

👨‍🔬 I Tahir, K Wijaya, MU Yahya, M Yapin

📚 Indonesian J. Chem 2 (2), 83-90, 2002

2002

189

Multifuction of Layered and Porous Material

Google Scholar

👨‍🔬 K Wijaya

📚 Indonesian Journal of Chemistry 2 (3), 142-154, 2002

2002

190

Polysulfonylamine, CXLIII [1], Rolle schwacher Wasserstoffbrücken (C-H··· O) in den Kristallstrukturen von 2, 6-Dimethylpyridinium-, 1-Hydroxypyridinium-und Imidazolium …

Google Scholar

👨‍🔬 O Moers, K Wijaya, T Hamann, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung B 56 (10), 1052-1062, 2001

2001

191

Polysulfonylamine, CXIX Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Ein antidromes Achtringmuster als robustes supramolekulares Synthon-Drei prototypische …

Google Scholar

👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung B 54 (11), 1441-1449, 1999

1999

192

Polysulfonylamines. CVI. 1, 4, 7, 10, 13, 16-Hexaoxacyclooctadecane–Dimethyl Sulfoxide–Bis (4-fluorophenylsulfonyl) amine (1/2/2)

Google Scholar

👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones

📚 Crystal Structure Communications 54 (11), 1707-1710, 1998

1998

193

Performance comparison of molybdenum-impregnated sulfated mesoporous silica catalysts by spray and wet impregnation in transforming used palm cooking oil into bio-jet fuel

Google Scholar

👨‍🔬 AJ Saviola, MF Vebryana, W Wangsa, P Prastyo, A Syoufian, DA Saputra, ...

📚 Chemistry Africa 8 (4), 1539-1556, 2025

2025

194

Unlocking the potential of converting non-edible oils into sustainable jet fuel-range hydrocarbons using simply prepared nickel-or molybdenum-promoted zirconia catalysts

Google Scholar

👨‍🔬 AJ Saviola, K Wijaya, RA Fitria, SW Chang, B Ravindran, AK Amin, ...

📚 Sustainable Chemistry for Climate Action, 100126, 2025

2025

195

Upcycling secondary nickel from spent nickel-manganese-cobalt (NMC) batteries as a nanocatalyst on sulfated natural zeolite for converting LDPE plastic waste into jet-fuel …

Google Scholar

👨‍🔬 A Bhagaskara, K Wijaya, W Trisunaryanti, DA Saputra, A Agustanhakri, ...

📚 Next Materials 9, 101107, 2025

2025

196

Representative modeling of MXene-based hybrid nanocomposites for catalytic hydrogen evolution reactions: a comprehensive review

Google Scholar

👨‍🔬 L Kabir, K Wijaya, J Li, J Unruangsri, WC Oh

📚 Sustainable Energy & Fuels 8 (24), 5672-5710, 2024

2024

197

Sulfuric acid-activated Indonesian natural bentonite as solid acid catalysts in microwave-protocol nitrobenzene synthesis

Google Scholar

👨‍🔬 ZL Ardelia, AJ Saviola, K Wijaya, MF Pradipta, H Ismail, B Budhijanto, ...

📚 Iranian Journal of Catalysis 14 (4), 1-9, 2024

2024

198

Dual metal NiMo dispersed on silica derived from rice husk ash as a catalyst for hydrocracking of used palm cooking oil into liquid biofuels

Google Scholar

👨‍🔬 K Wijaya, RDP Setyono, RA Pratika, E Heraldy, A Suseno, L Hakim, ...

📚 Communications in Science and Technology 9 (2), 219-226, 2024

2024

199

Activity and Selectivity of Mesoporous Silica Catalyst for Hydrocracking Process of Used Palm Oil into Biogasoline

Google Scholar

👨‍🔬 A Suseno, K Wijaya, E Heraldy, L Hakim, WD Saputri, G Gunawan, ...

📚 Indonesian Journal of Chemistry 23 (2), 285-297, 2023

2023

200

Nanosulfated Silica as a Potential Heterogeneous Catalyst for the Synthesis of Nitrobenzene

Google Scholar

👨‍🔬 K Amri, A Sabilladin, RA Pratika, A Sudarmanto, H Ismail, MF Lestari, ...

📚 Korean Journal of Materials Research 33 (7), 265-272, 2023

2023

201

Effect of sulfation on physicochemical properties of ZrO2 and TiO2 nanoparticles

Google Scholar

👨‍🔬 K Wijaya, RA Pratika, ER Fitri, PF Prabani, Y Candrasasi, WD Saputri, ...

📚 Korean Journal of Materials Research 32 (3), 125-131, 2022

2022

202

Application of Quantitative Structure-Property Relationship (QSPR) Models for the Predictions of Critical Micelle Concentration of Gemini Imidazolium Surfactants

Google Scholar

👨‍🔬 E Setiawan, Mudasir, K Wijaya

📚 IOP Conference Series: Materials Science and Engineering 742 (1), 012022, 2020

2020

203

Kinetics adsorption of heavy oil spills in rivers on magnetite-(CTAB-montmorillonite) adsorbent

Google Scholar

👨‍🔬 S Hilma Siregar, K Wijaya, E Sri Kunarti, A Syoufian, Suyanta

📚 IOP Conference Series: Materials Science and Engineering 509 (1), 012136, 2019

2019

204

Konversi Gliserol menjadi Polihidroksibutirat dengan Menggunakan Bakteri Eschericia coli

Google Scholar

👨‍🔬 EF Rahayu, W Trisunaryanti, K Wijaya

📚 Indonesian Journal of Chemical Science 6 (3), 287-293, 2017

2017

205

Theoretical study of adsorption and dissociation of NH3 on pentanuclear Fe(111) surface

Google Scholar

👨‍🔬 G Purwiandono, Triyono, K Wijaya

📚 IOP Conference Series: Materials Science and Engineering 107 (1), 012068, 2016

2016

206

Effect of sulfuric acid concentration of bentonite and calcination time of pillared bentonite

Google Scholar

👨‍🔬 A Mara, K Wijaya, W Trisunaryati, Mudasir

📚 AIP Conference Proceedings 1725 (1), 020042, 2016

2016

207

Computer aided design of molecular imprinted polymer for selective recognition of capsaicin

Google Scholar

👨‍🔬 I Tahir, K Wijaya, S Islam, MN Ahmad

📚 Indonesian Journal of Chemistry 14 (1), 85-93, 2014

2014

208

Hubungan Kuantitatif Struktur Elektronik dan Aktivitas Anti Tumor Senyawa Turunan Amino Pirimido Isokuinolin Kuinon Dengan Pendekatan Regresi Komponen Utama

Google Scholar

👨‍🔬 A Saputra, K Wijaya, I Tahir

📚 Chemistry Progress 6 (1), 10-17, 2013

2013

209

QSAR study of flavone/flavonol analogues as the antiradical compounds based on Hansch analysis

Google Scholar

👨‍🔬 I Tahir, K Wijaya, B Purwono, D Widianingsih

📚 Indonesian Journal of Chemistry 3 (1), 48-54, 2010

2010

210

Preparation and Catalytic Activity for Isopropyl Benzene Cracking Of Co, Mo And Co/Mo-Al 2 O 3-Pillared Montmorillonite Catalysts

Google Scholar

👨‍🔬 H Hasanudin, K Wijaya, B Santoso

📚 Indonesian Journal of Chemistry 9 (2), 189-194, 2009

2009

211

Analisis Spektra Transisi Elektronik Senyawa Tabir Surya Maa's-gly pada Konfigurasi Dimer dan Konfigurasi Solut-etanol

Google Scholar

👨‍🔬 I Tahir, K Wijaya, R Roto, A Ahmadi

📚 Berkala Ilmiah MIPA 17 (2), 242831, 2007

2007

212

Polysulfonylamine, CLIX [1]. A variety of supramolecular synthons in two molecular complexes of di (4-halobenzenesulfonyl) amines with oxygen bases

Google Scholar

👨‍🔬 T Hamann, K Wijaya, O Moers, A Blaschette, PG Jones

📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 57 …, 2002

2002

213

Polysulfonylamines, CXXVII-Hydrogen bonding in crystalline onium dimesylamides: A robust eight-membered ring synthon as a component in three-dimensional hydrogen bonding patterns

Google Scholar

👨‍🔬 K Wijaya, O Moers, D Henschel, A Blaschette, PG Jones

📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 55 (8 …, 2000

2000

214

Polysulfonylamine, CXII. Neues aus der Festkörperchemie der 2-Pyridone: Isolierung und Röntgenstrukturen von Bis (2-pyridon) hydrogen (I)-und Bis (6-methyl-2-pyridon) hydrogen …

Google Scholar

👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung B 54 (5), 643-648, 1999

1999

215

Polysulfonylamine, CXVII Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Sechs systematisch variierte sek.-Ammonium-dimesylamide mit sechs verschiedenen null-, ein-oder …

Google Scholar

👨‍🔬 O Moers, K Wijaya, D Henschel, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung B 54 (11), 1420-1430, 1999

1999

216

Investigation of Reaction Mechanism in Selective Citric Acid Leaching of Ni and Co from NMC Cathodes via Real Time Raman Spectroscopy and RSM Optimization

Google Scholar

👨‍🔬 A Bhagaskara, DA Saputra, W Trisunaryanti, K Wijaya, K Rozana, ...

📚 Journal of the Indian Chemical Society, 102410, 2026

2026

217

Valence State-Dependent Catalytic Behavior of Ni and Co in NiCo/Activated Carbon Derived from Spent Li-ion Batteries for Biojet Fuel Production

Google Scholar

👨‍🔬 A Bhagaskara, W Trisunaryanti, K Wijaya, AM Tazkia, DA Saputra, ...

📚 Journal of the Indian Chemical Society, 102413, 2026

2026

218

Modification of mesoporous zirconia using phosphoric acid and calcium oxide as a bifunctional nano-catalyst for one-pot conversion of used palm cooking oil into biodiesel

Google Scholar

👨‍🔬 EC Sambara, AJ Saviola, A Syoufian, RA Fitria, A Mumtaziyah, K Rozana, ...

📚 Next Materials 9, 101147, 2025

2025

219

Fixing silicotungstic acid onto activated bentonite assisted by ultrasonic waves and its application as a solid acid catalyst for levulinic acid esterification into butyl …

Google Scholar

👨‍🔬 B Wiyantoko, AJ Saviola, AS Hutama, I Fatimah, L Hauli, WC Oh, ...

📚 Inorganic Chemistry Communications, 115721, 2025

2025

220

Hydroconversion of Crude Palm Oil Over Highly Dispersed Porous Silica Modified Zirconium Nitride: Effect of EDTA and KHF Template

Google Scholar

👨‍🔬 WR Asri, H Hasanudin, K Wijaya

📚 Silicon 16 (1), 83-97, 2024

2024

221

Hydrodeoxygenation of refined palm kernel oil into bioavtur using spray-dry impregnated activated carbon supported-Mo catalysts

Google Scholar

👨‍🔬 W Trisunaryanti, K Wijaya, I Kartini, S Purwono, A Mara

📚 Transdisciplinary Research and Education Center for Green Technologies …, 2024

2024

222

Toward Advanced QM/MM MD Simulations of Solid–Liquid Interfaces–Adsorption and Proton Transfer of Multilayer Water on R-TiO2(001)

Google Scholar

👨‍🔬 M Saleh, H Hi Djumat, K Wijaya, TS Hofer

📚 The Journal of Physical Chemistry C 128 (23), 9766-9775, 2024

2024

223

Modification of nanozirconia with sulfuric acid and calcium oxide as heterogeneous catalysts for biodiesel production from used coconut cooking oil

Google Scholar

👨‍🔬 AI Agipa, WD Saputri, A Syoufian, S Sudiono, A Budiman, MF Lestari, ...

📚 Moroccan Journal of Chemistry 11 (3), J. Chem. 11 N° 3 (2023) 854-870, 2023

2023

224

Comparative study of low-grade crude coconut oil esterification over SO4/ZrO2 and SO4/TiO2 catalysts

Google Scholar

👨‍🔬 K Wijaya, L Hauli, PF Prabani, Y Candrasasi, ER Fitriand

📚 AIP Conference Proceedings 2958 (1), 030001, 2023

2023

225

Magnetic and ultrasonic integrated photocatalytic hydrogen evolution effects with Nanosize CoOCu2OZnO and TiO2 decorated on reduced graphene oxide

Google Scholar

👨‍🔬 Y Areerob, Z Meng, K Ullah, K Wijaya, Z Otgonbayar, WC Oh

📚 Materials Research Bulletin 168, 112483, 2023

2023

226

Synthesis of Coconut Oil-based Sodium Methyl Ester Sulfonate for the Application of Enhanced Oil Recovery

Google Scholar

👨‍🔬 KW Feda Virgin Alfauziah, Fairuz Jannah Mardhiyah, Asma Nadia

📚 J.Idn.Chem.Soc 3 (1), 68-72, 2020

2020

227

Indonesian Modified Clay for Dye Waste Treatment

Google Scholar

👨‍🔬 I Sumarlan, I Fatimah, K Wijaya

📚 Acta Chimica Asiana 3 (1), 122-126, 2020

2020

228

Synthesis and Characterization of Natural Ca (OH) 2/KF Superbase Catalyst for Biodiesel Production from Palm Oil

Google Scholar

👨‍🔬 IF Nurcahyo, K Wijaya, A Budiman, YH Taufiq-Yap

📚 Oriental Journal of Chemistry 34 (2), 750, 2018

2018

229

Bioetanol sekala UMKM dan Home Insudtri

Google Scholar

👨‍🔬 K Wijaya

📚 Pusat Energi Universitas Gajah Mada. diakseh dari https://pse. ugm. ac. id …, 2018

2018

230

Sintesis Dan Karakterisasi Fotokatalis Tio2 Montmorilonit Terpilar Alumina

Google Scholar

👨‍🔬 I Sumarlan, I Fatimah, K Wijaya

📚 Jurnal Pijar Mipa 11 (2), 2016

2016

231

Electrodeposition of PbO2 on Ti substrate in alkaline solution: Influence of fluoride Ions Addition

Google Scholar

👨‍🔬 A Mukimin, K Wijaya, A Kuncaka

📚 Asian Journal of Chemistry 25 (7), 3961, 2013

2013

232

Preparation of Biodiesel from Nyamplung Oil (Calophyllum Inophyllum Linn Oil) Using H-Zeolite and NaOH as the Catalyst

Google Scholar

👨‍🔬 K Wijaya, A Syoufian, M Ainuri

📚 2nd International Conference on Chemical Sciences Proceeding, Yogyakarta, 2010

2010

233

Pemanfaatan Katalis Ni/Zeolit Pada Hidrogenasi Katalitik Etil Palmitat Menjadi Setil Alkohol

Google Scholar

👨‍🔬 D Kartika, T Triyono, K Wijaya, DSPHDS PH

📚 Molekul 5 (2), 83-88, 2010

2010

234

Hydrotalcite-Like Synthesis Using Magnesium from Brine Water

Google Scholar

👨‍🔬 E HERALDY, SRIJS TRIYONO, K WIJAYA, D PRASASTI, G SAVITRI, ...

📚 Proceedings of the 2009 International Conference on Chemical, Biological and …, 2009

2009

235

Prediksi Tipe Aktivitas Senyawa Tabir Surya Homosalat Berdasarkan Analisis Spektra Transisi Elektronik Pada Konfigurasi Bentuk Dimer dan Solut-Solven

Google Scholar

👨‍🔬 I Tahir, K Wijaya, A Ahmadi

📚 Seminar Nasional Kimia XVIII, Yogyakarta 10, 2008

2008

236

Analisis In Silico Senyawa Tabir Surya Alkil Sinamat Berdasarkan Perhitungan Transisi Elektronik dengan Metoda ZINDO/s

Google Scholar

👨‍🔬 I Tahir, K Wijaya, T Subarni, TD Wahyuningsih

📚 Jurnal Farmasi Sains dan Komunitas 2, 230-240, 2004

2004

237

Pemodelan Molekul Senyawa Mycosporine-Like Amino Acids (MAAs-LIKE) sebagai Senyawa Penyerap Sinar UV

Google Scholar

👨‍🔬 I Tahir, K Wijaya, II Falah, R Damayanti

📚 Prosiding Seminar Nasional Hasil Penelitian MIPA, Fakultas MIPA Universitas …, 2004

2004

238

Hubungan Kuantitatif Antar Struktur Molekul dan Titik Leleh dari Berbagai Senyawa Organik

Google Scholar

👨‍🔬 I Tahir, K Wijaya, MU Yahya

📚 Indonesia Journal of Chemistry 2 (2), 83-90, 2002

2002

239

Polysulfonylamine, CLI [1]. Starke und schwache Wasserstoffbrücken in den Kristallstrukturen von 8-Hydroxychinolinium-und 8-Aminochinolinium-dimesylamid/Polysulfonylamines, CLI …

Google Scholar

👨‍🔬 D Henschel, O Moers, K Wijaya, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung B 57 (5), 524-533, 2002

2002

240

Zr–Hf separation of zirconium oxychloride products using Tributyl Phosphate (TBP) in kerosene

Google Scholar

👨‍🔬 K Rozana, AK Dewi, H Poernomo, SA Ningtyas, K Wijaya

📚 Journal of the Indian Chemical Society 102 (4), 101627, 2025

2025

241

Pillared Bentonite Materials as Potential Solid Acid Catalyst for Diethyl Ether Synthesis: A Brief Review

Google Scholar

👨‍🔬 P Wahyuningsih, K Wijaya, AS Hutama, AJ Saviola, I Purnama, WC Oh, ...

📚 Korean Journal of Materials Research 34 (5), 223-234, 2024

2024

242

Microwave assisted palm oil biodiesel production using KOH/ZrO2-Bentonite as catalyst

Google Scholar

👨‍🔬 Y Utubira, K Wijaya, Triyono, ES Kunarti

📚 AIP Conference Proceedings 2642 (1), 050001, 2023

2023

243

Component, Formulation and Regulatory of Sunscreen Materials: A Brief Review

Google Scholar

👨‍🔬 FO Hariani, MA Jerusalem, I Tahir, M Utami, WC Oh, K Wijaya

📚 Korean Journal of Materials Research 33 (3), 87-94, 2023

2023

244

Synthesis and Catalytic Performance of Ni/Silica Pillared Clay on HDPE Plastic Hydrocracking to Produce Liquid Hydrocarbons as Fuel

Google Scholar

👨‍🔬 D Darwanta, W Trisunaryanti, K Wijaya, S Purwono

📚 Iranian Journal of Catalysis 13 (2), 2023

2023

245

Lump Kinetic Method in Solving Kinetic Problems and Cracking Reaction Mechanism: A Review

Google Scholar

👨‍🔬 H Hasanudin, WR Asri, K Wijaya

📚 IRANIAN JOURNAL OF CATALYSIS 12 (2), 115-125, 2022

2022

246

Nanocatalysts of sulfated zirconia and calcium oxide/zirconia for microwave-assisted biodiesel synthesis from castor oil

Google Scholar

👨‍🔬 RZ Andiena, K Wijaya, A Syoufian

📚 Materials Science Forum 1067, 167-176, 2022

2022

247

Synthesis of titanium oxide catalyst with gold nanoparticle as a dopant for ethanol dehydration application

Google Scholar

👨‍🔬 S Mulijani, R Ismail, K Wijaya, A Patah, AC Wibowo

📚 International Journal of Renewable Energy Research 12 (4), 1831-1836, 2022

2022

248

QSAR-based design of potent betulinic acid derivatives as HIV maturation inhibitors. CMUJ

Google Scholar

👨‍🔬 I Arief, HD Pranowo, M Mudasir, K Wijaya

📚 Nat. Sci 20 (1), e2021010, 2021

2021

249

Synthesis and application of nanolayered and nanoporous materials

Google Scholar

👨‍🔬 K Wijaya, E Heraldy, L Hakim, A Suseno, PL Hariani, M Utami, ...

📚 ICS Physical Chemistry 1 (1), 1-1, 2021

2021

250

Kimia Kuantum Untuk Perekayasa Nanomaterial

Google Scholar

👨‍🔬 K Wijaya, A Syoufian, I Tahir, AS Hutama

📚 UGM PRESS, 2021

2021

251

Preparation of Calcium Oxide/Zeolite Nanocomposite and its Application to Improve the Quality of Patchouli Oil

Google Scholar

👨‍🔬 LH KARNA WIJAYA, MAISARI UTAMI, AKHMAD SYOUFIAN

📚 Key Engineering Material 849 (-), 119-124, 2020

2020

252

Synthesis and Characterization of Diethanolamide (Surfactant) from Cao/Zeolite-Catalysed Used Cooking Oil

Google Scholar

👨‍🔬 W Lusiana, A Nadia, S Sudiartono, PL Hariani, A Setyopratiwi, K Wijaya

📚 Journal of the Indonesian Chemical Society 3 (2), 81, 2020

2020

253

Physico-Chemical Properties of Nano ZrO2-Pillared Bentonite with Nickel as Supporting Metal

Google Scholar

👨‍🔬 M Mirzan, A Syoufian, K Wijaya

📚 Nano Hybrids and Composites 30, 9-17, 2020

2020

254

Synthesis and characterization of Ni-promoted zirconia pillared bentonite

Google Scholar

👨‍🔬 M Mirzan, K Wijaya, II Falah, W Trisunaryanti

📚 Journal of Physics: Conference Series 1242 (1), 012013, 2019

2019

255

Studi teoritis senyawa turunan kalkon hidroksi sebagai sensor kimia berbagai anion

Google Scholar

👨‍🔬 F Perdana, K Wijaya, R Armunanto

📚 Jurnal Kimia Riset 3, 95-101, 2018

2018

256

Perengkahan Katalitik terhadap Minyak Hasil Pirolisis Plastik Ldpe (Low Density Polyehtylene) Menggunakan Katalis Cr-Zeolit

Google Scholar

👨‍🔬 M Anshori

📚 Skripsi, 2017

2017

257

Study of the acidic properties of ZrO2-pillared bentonite

Google Scholar

👨‍🔬 A Suseno, Priyono, K Wijaya, W Trisunaryanti

📚 IOP Conference Series: Materials Science and Engineering 107 (1), 012040, 2016

2016

258

Pembuatan dan Karakterisasi Kompon Karet Cair Berbasis Lateks Pekat dan Asap Cair Tempurung Kelapa

Google Scholar

👨‍🔬 TD Sutanto, M DRS

📚 Universitas Gadjah Mada, 2015

2015

259

Identification of Antibacterial Compound from Extract Coconut Shell Liquid Smoke

Google Scholar

👨‍🔬 J Lombok, B Setiaji, W Trisunaryanti, K Wijaya

📚 International Journal of Applied Chemistry 10 (2), 141-151, 2014

2014

260

Synthesis of Zn (II)/silica by sol-gel method as an antibacterial material against Escherichia coli and Staphylococcus aureus

Google Scholar

👨‍🔬 D Anggraini, K Wijaya

📚 Berkala Ilmiah MIPA 23 (2), 241230, 2014

2014

261

Pengaruh Perlakuan Temperatur pada Sintesis Bentonit Terpilar Al2O3 terhadap Karakternya dan Aplikasinya Sebagai Katalis dalam Reaksi Esterifikasi

Google Scholar

👨‍🔬 P Wahyuningsih, K Wijaya, W Trisunaryanti

📚 JURUTERA-Jurnal Umum Teknik Terapan 1 (02), 24-28, 2014

2014

262

Karakterisasi dan Uji Aktivitas Katalis Mordenit dan Zeolit-Y Pada Hidrorengkah Ban Bekas menjadi Fraksi Bahan Bakar

Google Scholar

👨‍🔬 W Trisunaryanti, KW Triyono, AB Majid, Y Priastomo, E Febriyanti, ...

📚 Prosiding Seminar Nasional Kimia Unesa, 2012

2012

263

bio fuel dari Biomassa

Google Scholar

👨‍🔬 K Wijaya

📚 Pusat Studi Energi Universitas Gajah Mada, 2011

2011

264

Synthesis and characterization of modified Ti/[alpha]-Pb [O. sub. 2] nanoporous electrode as an active material on positive electrode

Google Scholar

👨‍🔬 A Mukimin, K Wijaya, A Kuncaka

📚 International Journal of Applied Chemistry 7 (3), 245-259, 2011

2011

265

Determination of many-body effect of [Co (NH 3) n] 2+(n= 1–6) complexes base on abinitio calculations [J]

Google Scholar

👨‍🔬 HD Pranowo, K Wijaya, B Setiaji, RS Janu

📚 Indonesian Journal of Chemistry 2 (1), 1-7, 2010

2010

266

Controlling Factor In Alumina Pillared Saponite and Alumina Pillared Montmorillonite Synthesis

Google Scholar

👨‍🔬 I Fatimah, N Narsito, K Wijaya

📚 Indonesian Journal of Chemistry 9 (1), 5-12, 2010

2010

267

Asam Padat Berbasis Montmorilonit sebagai Katalis dalam Proses Pembuatan Biodiesel dari Minyak Jelantah

Google Scholar

👨‍🔬 K Wijaya

📚 Workshop advanced material, Fakultas MIPA Universitas Gajah Mada, 2009

2009

268

Kajian Pengaruh Temperatur Dan Kecepatan Pengadukan Terhadap Konversi Biodiesel dari Minyak Sawit menggunakan Abu Tandan Kosong Sawit sebagai Katalis

Google Scholar

👨‍🔬 A Luthfiyati

📚 Makalah Seminar Nasional Kimia XVIII. Yogyakarta, 2008

2008

269

Pemodelan Molekul Senyawa Berpotensi Sunscreen Berbasis Struktur Molekul Mycosporine-Like Amino Acids-Glycine

Google Scholar

👨‍🔬 I Tahir, K Wijaya, R Damayanti

📚 Austrian Indonesian Centre for Computational Chemistry (AIC), FMIPA …, 2007

2007

270

MODIFIKASI PORI ZEOLIT ALAM WONOSARI MENGGUNAKAN MOLEKUL PENGARAH STRUKTUR DAN APLIKASINYA SEBAGAI PADATAN PENDUKUNG IMOBILISASI SEL KHAMIR Phaffia rhodozyma PENGHASIL …

Google Scholar

👨‍🔬 A Suseno, E Kusdiyantini, M Mudasir, K Wijaya

📚 UNIVERSITAS DIPONEGORO, 2005

2005

271

Aplikasi Pemisahan Data secara Acak pada Analisis Hubungan Kuantitatif Struktur Elektronik dan Aktivitas Senyawa Indolialkilamina

Google Scholar

👨‍🔬 I Tahir, K Wijaya, ESY Putri

📚 Seminar Nasional Hasil Penelitian Farmasi, 190-200, 2004

2004

272

Sintesis Katalis Mesopori Lempung Terpilar Sol Silika Berpengemban Ni dan Ti dari Lempung Alam Boyolali untuk Hidrorengkah Fraksi Berat Minyak Bumi Minas

Google Scholar

👨‍🔬 A Darmawan, S SRIATUN, Y ARRYANTO, K WIJAYA

📚 UNIVERSITAS DIPONEGORO, 2004

2004

273

STUDY OF DOUBLE PROTONS MIGRATION MECHANISM IN SUPRAMOLECULAR STRUCTURES OF ACETIC ACID-WATER AND ACETIC ACID-AMMONIA BY AB INITIO METHOD

Google Scholar

👨‍🔬 K Wijaya, I Tahir, H Harnowo

📚 Indonesian Journal of Chemistry 3 (2003), 2003

2003

274

Sintesis lempung Montmorillonit terpilar Fe2O3 dan kajian sifat-sifat fisiknya

Google Scholar

👨‍🔬 IAG Widihati

📚 Universitas Gadjah Mada, 2002

2002

275

Polysulfonylamine, CLXI. Ein neuartiges 1, 2-Dihydroimidazochinolinylium-Kation: Zufällige Isolierung und Kristallstruktur des entsprechenden Dimesylamids Polysulfonylamines …

Google Scholar

👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung B 57 (11), 1277-1281, 2002

2002

276

Sintesis Lempung Monmorilonit Terpilar Berbahan Baku Bentonit Alam Indonesia dan Aplikasinya Sebagai Katalis, Bahan Foto-Fungsional dan Adsorben

Google Scholar

👨‍🔬 K Wijaya

📚 Universitas Gadjah Mada, Yogyakarta, 2000

2000

277

Polysulfonylamine, CXXV [1]. Neue Komplexe von Disulfonylaminen mit Kronenethern-im voraus entworfen oder zufällig entdeckt/Polysulfonylamines, CXXV [1]. New Complexes of …

Google Scholar

👨‍🔬 D Henschel, K Wijaya, O Moers, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung B 55 (3-4), 299-316, 2000

2000

278

Polysulfonylamine, CXXVII [1] Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Ein robustes Achtring-Synthon als Bestandteil dreidimensionaler Wasserstoffbrückenmuster …

Google Scholar

👨‍🔬 K Wijaya, O Moers, D Henschel, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung B 55 (8), 753-762, 2000

2000

279

Polysulfonylamines, CXII. A Novel Solid-State Aspect of 2-Pyridones: Isolation and X-Ray-, Structures of Bis (2-pyridone) hydrogen (I) and Bis (6-methyl-2-pyridone) hydrogen (I …

Google Scholar

👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones

📚 ZEITSCHRIFT FUR NATURFORSCHUNG B 54, 643-648, 1999

1999

280

Polysulfonylamine, XCVII [1] Di (organosulfonyl) amine und ihre konjugierten Anionen als simultane Baugruppen in zwei supramolekularen Strukturen/Polysulfonylamines, XCVII [1 …

Google Scholar

👨‍🔬 D Henschel, K Wijaya, O Moers, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung B 52 (10), 1229-1236, 1997

1997

281

Triyono 2010 Studi Pendahuluan Pemanfaatan Limbah Desalinasi Untuk Pembuatan Mg/Al Hydrotalcite-Like J

Google Scholar

👨‍🔬 E Heraldy, D Prasasti, K Wijaya, SJ Santosa

📚 Bumi Lestari 12, 16-23, 0

282

L., dan Tahir, l., 2008. Ekstraksi kalium dari abu tandan kosong sawit sebagai katalis pada reaksi transesterifikasi minyak sawit

Google Scholar

👨‍🔬 MI Yoeswono, W Karna

📚 Bulletin of Chemical Reaction Engineering and Catalyst 3, 14-20, 0

283

The effect of sulfur doping on the ZrTiO4 (111) surface toward the CO2RR to chemically valuable products: a density functional theory study.

Google Scholar

👨‍🔬 S Aziz, LA Marlina, WD Hilmy, NPS Bila, P Chandra, K Wijaya, ...

📚 Physical Chemistry Chemical Physics: PCCP 28 (8), 5455-5467, 2026

2026

284

Effect of Nickel Incorporation on Nitrogen-Doped Titania/Zirconia Nanocomposites for Enhanced Visible-Light Photocatalytic Degradation of Phenol

Google Scholar

👨‍🔬 A Syoufian, AJ Saviola, RR Janah, R Afifah, K Wijaya, R Kurniawan, ...

📚 Bulletin of Chemical Reaction Engineering & Catalysis 21 (2), 349-361, 2026

2026

285

Distribution and Habitat Characterization of Non-Edible Plants with Potential as Biodiesel Feedstock on Java Island, Indonesia

Google Scholar

👨‍🔬 S Sunarta, IN FITRIANI, R FITRIANI, CK YOGA, M UTAMI, WC OH, ...

📚 Journal of the Korean Wood Science and Technology 53 (4), 389-400, 2025

2025

286

A Green and Sustainable Approach for Converting Laboratory Latex Glove Waste into Liquid Fuel via Microwave-assisted Pyrolysis

Google Scholar

👨‍🔬 W Wangsa, AJ Saviola, L Hauli, W Trisunaryanti, P Chandra, RA Fitria, ...

📚 Bulletin of Chemical Reaction Engineering & Catalysis 20 (3), 493-504, 2025

2025

287

biomedical applications of novel MXene nanocomposites

Google Scholar

👨‍🔬 AA Gawai, SP Jain, P Nuengmatcha, MV Le, L Kabir, S Srikrajang, ...

📚 Journal of Materials Science, 1-34, 2025

2025

288

Eco-friendly CaO catalyst from waste blood cockle shells activated by citric acid for efficient biodiesel production from used palm oil

Google Scholar

👨‍🔬 PN Mahayuwati, W Trisunaryanti, K Wijaya, FP Normayanti

📚 Environmental Science and Pollution Research 32 (57), 30930-30943, 2025

2025

289

Facile synthesis of g-C3N4/Fe3O4/PANI ternary nanocomposite for supercapacitor and photocatalytic applications

Google Scholar

👨‍🔬 L Zhixuan, MA Ashwini, D Susanti, S Sagadevan, B Ninwong, ...

📚 Diamond and Related Materials, 113277, 2025

2025

290

Biodiesel production with DES (deep eutectic solvent) catalyst using used cooking oil feedstock through two-stage transesterification process

Google Scholar

👨‍🔬 F Hadiah, NKD Lestari, MA Putri, B Santoso, R Rahmawati

📚 Jurnal Teknik Kimia 30 (1), 24-33, 2024

2024

291

Sains Material: Struktur, Sifat, Sintesis dan Aplikasinya

Google Scholar

👨‍🔬 K Wijaya, L Hauli, AK Amin, MUA Nadia

📚 Deepublish, 2024

2024

292

Separation of Zirconium and Hafnium from Zirconium Oxychloride (ZOC) Synthesis of Kalimantan Zircon Sand Concentrate Using Extraction Method with tributyl phosphate (TBP …

Google Scholar

👨‍🔬 K Rozana, AK Dewi, H Poernomo, WC Oh, K Wijaya

📚 Korean Journal of Materials Research 34 (5), 247-253, 2024

2024

293

Atmospheric Degradation Mechanism of Isoamyl Acetate Initiated by OH Radicals and Cl Atoms Revealed by Quantum Chemical Calculations and Kinetic Modeling

Google Scholar

👨‍🔬 AS Hutama, LA Marlina, MB Akram, K Wijaya, RM Sari, WD Saputri

📚 The Journal of Physical Chemistry A 128 (39), 8483-8500, 2024

2024

294

Biofuel production from palm oil via catalytic hydrocracking over modified-zirconia catalysts

Google Scholar

👨‍🔬 M Utami, R Safitri, MF Pradipta, K Wijaya

📚 3rd INTERNATIONAL SEMINAR ON SCIENCE AND TECHNOLOGY (ISSTEC) 2021: Science …, 2023

2023

295

Recent Progress on Sulfated Nanozirconia as a Solid Acid Catalyst in the Hydrocracking Reaction. Catalysts 2022, 12, 191

Google Scholar

👨‍🔬 SJ Sekewael, RA Pratika, L Hauli, AK Amin, M Utami, K Wijaya

📚 Contemporary Solutions for Advanced Catalytic Materials with a High Impact …, 2022

2022

296

Theoretical studies on structure and dynamics of anatase TiO2 (101)/H2SO4/H2O interface in the early stage of titania sulfation

Google Scholar

👨‍🔬 DN Afifah, LA Marlina, AS Hutama, K Wijaya

📚 Structural Chemistry 33 (4), 1341-1354, 2022

2022

297

Aluminosilicate Based Solid Acid Catalyst: Effect of Calcination Time, OH/Al Ratio and Keggin Ion Concentration on its Preparation

Google Scholar

👨‍🔬 A Mara, RA Pratika, K Wijaya, W Trisunaryanti, M Mudasir, H Ismail, ...

📚 Advances in Science and Technology 115, 1-8, 2022

2022

298

The Effect of HNO3 and/or NaOH Treatments on Characteristics of Mordenite

Google Scholar

👨‍🔬 W Trisunaryanti, K Wijaya, D Suryani, U Chasanah

📚 Advances in Geopolymer-Zeolite Composites-Synthesis and Characterization, 2021

2021

299

Solid State Mixing Preparation of CaO/Bentonite Nanocomposite and its Application to Improve the Quality of Patchouli Oil

Google Scholar

👨‍🔬 K Wijaya, M Utami, A Syoufian, AI Murifal

📚 Advanced Materials Research 1162, 21-26, 2021

2021

300

In Silico Prediction of Betulinic Acid Derivatives’ Cytotoxicity: Relationship between Topological Descriptors and CC50 Value

Google Scholar

👨‍🔬 I Arief, HD Pranowo, M Mudasir, K Wijaya

📚 Key Engineering Materials 884, 282-289, 2021

2021

301

Generic QSPR study for predicting critical micelle concentration of gemini cationic surfactants using the online chemical modeling environment (OCHEM)

Google Scholar

👨‍🔬 E Setiawan, K Wijaya, M Mudasir

📚 AIP Conference Proceedings 2349 (1), 020027, 2021

2021

302

QSAR-based design of the more potent betulinic acid derivatives as HIV maturation inhibitor.

Google Scholar

👨‍🔬 I Arief, HD Pranowo, M Mudasir, K Wijaya

📚 CHIANG MAI UNIVERSITY JOURNAL 20 (1), 2020

2020

303

Peran Riset Biofuel Sebagai Energi Baru Dan Terbarukan Untuk Penguatan Literasi Kimia Di Indonesia

Google Scholar

👨‍🔬 K Wijaya

📚 UGM, 2017

2017

304

Viskositas Produk Hidrocracking Crude Oil Batubara Dengan Katalis Ni/Mo-Montmorillonit Terpilar TiO2

Google Scholar

👨‍🔬 H Hasanudin, K Wijaya, A Rahmad, W Trisunaryanti

📚 Jurnal Penelitian Sains 11 (2), 2017

2017

305

Sintesis Cu (II)/Silika dengan Metode Sol-Gel Sebagai Antibakteri Terhadap Escherichia coli dan Staphylococcus aureus

Google Scholar

👨‍🔬 L Tania, K Wijaya, W Trisunaryanti

📚 Berkala Ilmiah MIPA 24 (2), 243018, 2016

2016

306

Effect of Immersion in Cu (II)-Natural Zeolite on Copper Sorption and Colour Stability of Acrylic Resins.

Google Scholar

👨‍🔬 D Irnawati, W Widjijono, K Wijaya, W Asmara

📚 Asian Journal of Chemistry 27 (9), 2015

2015

307

APLIKASI METODE DFT DAN SIMULASI DINAMIKA MOLEKULER PADA KAJIAN INTERAKSI MONOMER FUNGSIONAL UNTUK DESAIN POLIMER TERCETAK R (+)-KATINON

Google Scholar

👨‍🔬 A Saputra

📚 Universitas Gadjah Mada, 2014

2014

308

Zirconia-intercalated bentonite as catalyst candidate I: Preparation and characterization of [Zr4 (OH) 14 (H2O) 10] 2+ intercalated bentonite

Google Scholar

👨‍🔬 K Wijaya, I Prayogo

📚 International Journal of Applied Chemistry 9 (3), 243-252, 2013

2013

309

Preparasi dan Karakterisasi Komposit Kromium Oksida-Montmorillonit

Google Scholar

👨‍🔬 IMS Negara, K Wijaya, E Sugiharto

📚 Jurnal Kimia 2 (2), 93, 2008

2008

310

Polysulfonylamine, CLXVII [1]. Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Ein robustes Dreipunktmuster als Bestandteil eines 2D-, eines zweifach verwobenen 2D-und …

Google Scholar

👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung B 59 (1), 17-26, 2004

2004

311

Polysulfonylamines, CXLIII. Role of Weak Hydrogen Bonds (CH… O) in the Crystal Structures of 2, 6-Dimethylpyridinium, 1-Hydroxypyridinium and Imidazolium Dimesylamide

Google Scholar

👨‍🔬 O Moers, K Wijaya, T Hamann, A Blaschette, PG Jones

📚 ZEITSCHRIFT FUR NATURFORSCHUNG B 56 (10), 1052-1062, 2001

2001

312

Polysulfonylamines, CXVII [1]-Hydrogen bonding in crystalline onium dimesylamides: Six systematically varied sec-ammonium dimesylamides exhibiting six different zero-, one-, or …

Google Scholar

👨‍🔬 O Moers, K Wijaya, D Henschel, A Blaschette, PG Jones

📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 54 …, 1999

1999

313

Polysulfonylamines, CXVIII-Hydrogen bonding in crystalline onium dimesylamides: Three prim.-ammonium dimesylamides exhibiting two-or three-dimensional hydrogen bond patterns

Google Scholar

👨‍🔬 D Henschel, O Moers, K Wijaya, A Blaschette, PG Jones

📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 54 …, 1999

1999

314

BENZO-18-KRONE-6: ACETONITRIL (1

Google Scholar

👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung. B, A journal of chemical sciences 53 (12 …, 1998

1998

315

Polysulfonylamine, XC [1] Carbonsäure-Dimere, Wasser-Dimere und 18-Krone-6-Moleküle als Baugruppen eines supramolekularen Kettenpolymers: Darstellung und Struktur von (CH2CH2O)6 • 4H2O • 2HN(SO2C6H4-4-COOH)2 / Polysulfonylamines, XC [1 …

Google Scholar

👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung B 52 (8), 997-1002, 1997

1997

316

PEMBUATAN DAN UJI FOTOAKTIVITAS KOMPOSIT Ti02-BENTONIT UNTUK DEGRADASI SENYAWA PEWARNA METILEN BIRU

Google Scholar

👨‍🔬 I Tahir, K Wijaya

317

Hydrogen generation from coconut shell bio-oil via steam reforming incorporating energy–exergy analysis

Google Scholar

👨‍🔬 RA Syahputra, B Wirjosentono, K Wijaya, H Susilo, DH Sinaga, S Gea

318

The Effect of Sulfur Doping on the ZrTiO₄ (111) Surface toward CO₂RR into Chemically Valuable Products: A Density Functional Theory Study

Google Scholar

👨‍🔬 S Aziz, LA Marlina, NPS Bila, P Chandra, K Wijaya, AS Hutama

📚 Physical Chemistry Chemical Physics, 2026

2026

319

Controllable and tunable conductive polymer/MXene hybrid composites for biosensor applications: Recent advances, properties, and future directions

Google Scholar

👨‍🔬 JD Na, S Sagadevan, R Hsu, S Srikrajang, L Kabir, K Wijaya, K Ullah, ...

📚 Materials Horizons, 2026

2026

320

Keseimbangan Kimia: Konsep dan Aplikasi

Google Scholar

👨‍🔬 WT Sunaryanti, K Wijaya, A Setyopratiwi, I Tahir, S Sudiono, F Pradipta, ...

📚 Deepublish, 2026

2026

321

Sustainable ibuprofen degradation using eco-friendly CQDs/TiO2 nanocomposites from banana peels waste

Google Scholar

👨‍🔬 M Utami, I Sholidhyawati, MM Musawwa, K Wijaya, SS Kim, ...

📚 Carbon Letters 36 (2), 823-839, 2026

2026

322

Hydration structure and energetic signatures of hemidirected-and holodirected-like Motifs in aqueous Pb2+: A SCAN–QMCF–MD and DLPNO–CCSD (T) study

Google Scholar

👨‍🔬 N Prasetyo, K Wijaya, R Zainul, AR Wijaya, NA Siddiq

📚 Journal of Molecular Graphics and Modelling, 109353, 2026

2026

323

Biochar-Based Catalysts in Hydrogen Production: Mechanisms, Activation, and Efficiency

Google Scholar

👨‍🔬 RA Syahputra, M Irvan, A Andriayani, B Wirjosentono, K Wijaya, S Sarker, ...

📚 Trends in Sciences 23 (6), 13289-13289, 2026

2026

324

Pyrolytic wood vinegar from industrial crop residues as a bio-based fungicide for Fusarium control in banana cultivation

Google Scholar

👨‍🔬 I Purnama, NB Saidi, A Mutamima, NA Baharum, D Anggrayni, ...

📚 Industrial Crops and Products 242, 122909, 2026

2026

325

NaHCO₃-Assisted Synthesis of Ni-Promoted Sulfated Mesoporous Silica for the Hydrocracking of Used Cooking Oil into Biogasoline

Google Scholar

👨‍🔬 K Wijaya, MF Vebryana, N Prasetyo, AJ Saviola, WD Saputri, AK Amin, ...

📚 Bulletin of Chemical Reaction Engineering & Catalysis 21 (1), 149-167, 2026

2026

326

Novel Tailoring of Ternary ZnS‐MXene‐TiO2 Nanocomposite Heterojunction and Its Tunable Electrochemical Properties With Enhanced Photocatalytic Degradation

Google Scholar

👨‍🔬 L Kabir, D Kim, M Song, JD Na, YJ Joo, KY Cho, K Wijaya, WC Oh

📚 Advanced Engineering Materials 28 (11), e202502772, 2026

2026

327

Catalytic performance of sulfated SiO2, ZrO2, and TiO2 in the treatment of free fatty acids from waste cooking oil and coconut oil

Google Scholar

👨‍🔬 RA Pratika, Z Nafisah, D Hermayantiningsih, SY Kalalinggi, M Irmawan, ...

📚 Reaction Kinetics, Mechanisms and Catalysis, 1-25, 2026

2026

328

Enhanced photocatalytic activity of CuO/TiO2 nanocomposites prepared via chemical and green synthesis for wastewater treatment

Google Scholar

👨‍🔬 P Pamitha, KK Veni, R Kavitha, S Suresh, K Wijaya, LC Nehru

📚 Materials Chemistry and Physics 358, 132450, 2026

2026

329

Recent advances in MXene-based composite electrodes and solid-state electrolytes for enhanced mechanical, physical, and electrochemical properties for energy storage devices

Google Scholar

👨‍🔬 JD Na, S Sagadevan, L Kabir, K Wijaya, K Ullah, WC Oh

📚 Journal of Energy Storage 171, 122939, 2026

2026

330

Preparation of biochar catalyst from coconut shell impregnated with nickel metal as a heterogeneous catalyst

Google Scholar

👨‍🔬 RA SYAHPUTRA, B WIRJOSENTONO, K WIJAYA, A SUTIANI, ...

2025

331

EFFECT OF SOAKING AND HYDROLYSIS TIME VARIATIONS ON GELATIN CHARACTERISTICS FROM COW BONES

Google Scholar

👨‍🔬 PM Pattiasina, W Trisunaryanti, K Wijaya

📚 Molluca Journal of Chemistry Education (MJoCE) 15 (1), 27-33, 2025

2025

332

Chitin and Chitosan Whisker-Reinforced Thermoplastic Biocomposites

Google Scholar

👨‍🔬 FA Tanjung, I Tahir, MYR Siahaan, RA Siregar, Y Arifin, K Wijaya

📚 Biotechnological Advances in Chitin and Chitosan based Biocomposites, 151-172, 2025

2025

333

Enhanced selective Cu (II) detection using a high-performance EDTA/PVA/MWCNT-modified carbon paste electrode

Google Scholar

👨‍🔬 YA Perangin Angin, K Wijaya, W Trisunaryanti, RM Sari, L Destiarti, ...

📚 Carbon Letters, 1-16, 2025

2025

334

Introducing molybdenum onto activated Lapindo mud as a reusable green catalyst for sustainable bio-jet fuel production

Google Scholar

👨‍🔬 AJ Saviola, P Chandra, A Syoufian, S Sagadevan, WC Oh, WD Saputri, ...

📚 Materials Letters, 139323, 2025

2025

335

Solid Acid Catalyst Mesoporous Sulfated Zirconia with Metal Oxide Promoter and Its Application on Hydrolysis of Cellulose into Fermentable Glucose

Google Scholar

👨‍🔬 A Rachmat, N Hidayati, ZA Putri, Z Fanani, K Wijaya

📚 International Journal of Renewable Energy Research (IJRER) 15 (3), 441-448, 2025

2025

336

Oxidative desulfurization of dibenzothiophene in model fuel using spray impregnated-biogenic silica-supported molybdenum oxide catalyst

Google Scholar

👨‍🔬 K Wijaya, D Ariningtyas, AJ Saviola, S Sudiono, MAU Absor, WC Oh, ...

📚 Vacuum, 114736, 2025

2025

337

Leveraging nanocomposites of cobalt-nitrogen co-doped-titania immobilized on zirconia as a visible-light active photocatalyst for malachite green and phenol photodegradation

Google Scholar

👨‍🔬 A Syoufian, R Afifah, IN Astuti, AJ Saviola, RA Fitria, ES Kunarti, ...

📚 Vacuum, 114823, 2025

2025

338

Synthesis and Application of Modified Waste Acropora Coral Skeletons for Pb (II) Adsorption: A Bead Adsorbent Perspective

Google Scholar

👨‍🔬 AR Wijaya, R Zainul, K Wijaya, N Prasetyo, NA Siddiq

📚 South African Journal of Chemical Engineering, 2025

2025

339

Development of sulfuric acid-modified alumina-pillared bentonite for enhanced catalytic conversion of ethanol into diethyl ether

Google Scholar

👨‍🔬 P Wahyuningsih, AS Hutama, AJ Saviola, WC Oh, S Sagadevan, L Hauli, ...

📚 Vacuum, 114965, 2025

2025

340

Toward Efficient Bio-jet Fuel Production via Atmospheric Hydrotreating: Insight into the Effect of Co/HZSM-5, Mo/HZSM-5, and CoMo/HZSM-5 Catalyst Arrangements

Google Scholar

👨‍🔬 D Asnawati, AJ Saviola, K Wijaya, I Kartini, S Purwono, R Rodiansono, ...

📚 Arabian Journal for Science and Engineering 50 (24), 21123-21144, 2025

2025

341

First-Principles Investigation on Ethanol Oxidation Reaction over PdCu Alloy Surfaces for Direct Ethanol Fuel Cell Applications

Google Scholar

👨‍🔬 P Chandra, MN Hidayah, K Wijaya, LA Marlina, AS Hutama

📚 Surface Science, 122907, 2025

2025

342

Variation in Soaking Time and Hydrolysis Time on the Extraction of Gelatin from Cow Bones

Google Scholar

👨‍🔬 PM Pattiasina, W Trisunaryanti, K Wijaya

📚 ALKIMIA: Jurnal Ilmu Kimia dan Terapan 8 (2), 2024

2024

343

Supramolecular Modeling of Molecularly Imprinted Chitosan-Thiamin Using Density Functional Theory

Google Scholar

👨‍🔬 I Tahir, E Yudha, MF Pradipta, AJ Saviola, RA Wahab

📚 Materials and Technologies: Computational Materials Science, Silicon-based …, 2024

2024

344

Supramolecular Modeling of Molecularly Imprinted Chitosan-Resveratrol Using Density Functional Theory

Google Scholar

👨‍🔬 I Tahir, E Yudha, MF Pradipta, K Wijaya, M Mudasir, MF Vebryana, ...

📚 Key Engineering Materials 990, 103-116, 2024

2024

345

Conversion Single Reagent of n-Propanol to 1, 1-Dipropoxypropane Using Cr/Activated Carbon Catalyst

Google Scholar

👨‍🔬 II Falah, K Wijaya, MF Vebryana, AJ Saviola

📚 Solid State Phenomena 365, 55-62, 2024

2024

346

Nickel Oxide-Impregnated Phosphated Silica Catalyst: Synthesis and Application for Ethanol Dehydration into Diethyl Ether (DEE)

Google Scholar

👨‍🔬 MM Fatwa, AJ Saviola, MF Pradipta, RA Fitria, N Prasetyo, K Wijaya

📚 Solid State Phenomena 365, 87-97, 2024

2024

347

Nanomaterials for the Development of Electrodes

Google Scholar

👨‍🔬 K Wijaya, AK Amin, L Hauli, WD Saputri, DY Lestari, AJ Saviola, RA Fitria, ...

📚 Advanced Hybrid Nanomaterials for Energy Storage, 143-174, 2024

2024

348

Latest Technologies in Solid-State Electrolytes Related to Energy Storage Applications Based on 2D MXenes

Google Scholar

👨‍🔬 L Kabir, K Wijaya, WC Oh

📚 Advanced Hybrid Nanomaterials for Energy Storage, 1-41, 2024

2024

349

An Effective Synthesis of Phosphated Silica (PO4/SiO2) Catalyst and its Performance for Converting Ethanol into Diethyl Ether (DEE)

Google Scholar

👨‍🔬 K Wijaya

2024

350

Non-edible Vegetable Oils: A Viable Alternative for Biodiesel Production

Google Scholar

👨‍🔬 P SANTOSA

📚 Developments in Biodiesel: Feedstock, Production, and Properties 84, 60, 2024

2024

351

Preparation of Zirconium Nitride supported on SiO2 Catalyst for Vegetable Oil Conversion

Google Scholar

👨‍🔬 WR Asri, H Hasanudin, K Wijaya

📚 IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) 8 (2), 98-104, 2023

2023

352

Hydrocracking of Palm Oil Into Biofuel Over Ni-Al2O3-bentonite (Aluminosilicate) Nanocatalyst

Google Scholar

👨‍🔬 K Wijaya, RN Annisa, A Setyopratiwi, A Syoufian, H Hasanudin, M Utami

📚 Sustainability Engineering, 61-81, 2023

2023

353

Gasoline-range hydrocarbon production from hydrocracking of LDPE plastic waste utilizing nickel-promoted sulfated nanozirconia catalyst

Google Scholar

👨‍🔬 AK Amin, W Trisunaryanti, K Wijaya

📚 AIP Conference Proceedings 2958 (1), 030002, 2023

2023

354

Preface: International Conference on Physical Chemistry

Google Scholar

👨‍🔬 L Hakim, N Matubayasi, P Surawatanawong

📚 AIP Conference Proceedings 2958 (1), 010001, 2023

2023

355

Entrepreneurship Training on Product Manufacturing, Branding, and Marketing of Hand Soap Products for The Community in the Special Region of Yogyakarta

Google Scholar

👨‍🔬 A Setyopratiwi, K Wijaya, W Trisunaryanti, II Falah, I Tahir, S Sudiono, ...

📚 AIJR Proceedings, 48-53, 2023

2023

356

Development of Clove Oil Processing Installation to Comply with Indonesian Nasional Standard (SNI) in Gerbosari Village

Google Scholar

👨‍🔬 N Prasetyo, K Wijaya, W Trisunaryanti, II Falah, I Tahir, A Setyopratiwi, ...

📚 AIJR Proceedings, 250-255, 2023

2023

357

Diversification of Used Cooking Oil into Biodiesel as an Attempt to Increase BumDes Mangesti Sejahtera’s Revenue in Gentan Village, Baki District, Sukoharjo Regency

Google Scholar

👨‍🔬 K Wijaya, W Trisunaryanti, I Tahir, NW Yuwono, D Haryono, U Fransiska, ...

📚 AIJR Proceedings, 159-167, 2023

2023

358

Oxide-Based Nanomaterials for Drug Preparation and Delivery

Google Scholar

👨‍🔬 K Wijaya, WD Saputri, AK Amin, L Hauli, H Ismail, B Budhijanto, ...

📚 Bionanomaterials for Biosensors, Drug Delivery, and Medical Applications …, 2023

2023

359

5 Oxide-Based

Google Scholar

👨‍🔬 K Wijaya, WD Saputri, AK Amin, L Hauli, H Ismail, B Budhijanto, ...

📚 Bionanomaterials for Biosensors, Drug Delivery, and Medical Applications, 116, 2023

2023

360

Improvement of Catalyst Activity in Methanol-to-Olefin Conversion via Metal (Sr/La) Impregnation over ZSM-5 Catalyst

Google Scholar

👨‍🔬 B Budhijanto

📚 International Journal of Technology: IJ Tech, 2023

2023

361

Development of Chromium-Impregnated Sulfated Silica as a Mesoporous Catalyst in the Production of Biogasoline from Used Cooking Oil via a Hydrocracking Process

Google Scholar

👨‍🔬 TS Ningrum, AJ Saviola, K Wijaya, N Prasetyo, ZL Ardelia, RA Fitria, ...

2023

362

Facile Synthesis of Various ZrO2 Phases and ZrO2-MO2 (M= Ti, Hf) by Thermal Decomposition of a Single UiO-66 Precursor for Photodegradation of Methyl Orange. Catalysts 2022, 12 …

Google Scholar

👨‍🔬 INA Jannah, HF Sekarsari, S Mulijani, K Wijaya, AC Wibowo, A Patah

📚 s Note: MDPI stays neutral with regard to jurisdictional claims in published …, 2022

2022

363

Hydrocracking of LDPE Plastic Wastes into Liquid Fuel by Natural Zeolite Supported Nickel Metal

Google Scholar

👨‍🔬 M Taufiqurrohaman, K Wijaya, A Nadia, SE Purba, A Syoufian

📚 Key Engineering Materials 927, 154-158, 2022

2022

364

Optimized diethanolamide surfactant production from waste cooking oil using K2CO3/zeolite catalyst

Google Scholar

👨‍🔬 M Utami, SH Wicaksono, A Syoufian, K Wijaya

📚 AIP Conference Proceedings 2645 (1), 030016, 2022

2022

365

Nanoresearch sebagai Driving Force Kemajuan Sainstek di Indonesia

Google Scholar

👨‍🔬 K Wijaya

📚 Menuju Indonesia Maju 2045 1, 275, 2021

2021

366

The Effect of HNO3 and/or NaOH

Google Scholar

👨‍🔬 W Trisunaryanti, K Wijaya, D Suryani

📚 Advances in Geopolymer-Zeolite Composites: Synthesis and Characterization, 155, 2021

2021

367

Application of Energy-Saving Distiller for Standardized Patchouli Oil Production in Patchouli Oil SME in Kulon Progo

Google Scholar

👨‍🔬 W Kurniawati

📚 Indonesian Journal of Community Engagement, 2020

2020

368

Application of biogasoline in a four-stroke motorcycle engine

Google Scholar

👨‍🔬 S Sutrisna, W Karna

📚 ASEAN Journal on Science and Technology for Development 37 (2), 7, 2020

2020

369

Articles & Issues

Google Scholar

👨‍🔬 A Purnama, K Wijaya, I Tahir, EA Suyono, A Budiman

📚 Korean Journal of Chemical Engineering 37 (3), 2020

2020

370

PLATINA/NANOZIRKONIA TERSULFATASI: PREPARASI, KARAKTERISASI DAN APLIKASINYA UNTUK KONVERSI LIMBAH PLASTIK LDPE MENJADI BAHAN BAKAR CAIR

Google Scholar

👨‍🔬 M UTAMI

📚 Universitas Gadjah Mada, 2019

2019

371

PREPARASI KOMPOSIT CaO/ZEOLIT DAN APLIKASINYA UNTUK MENINGKATKAN MUTU MINYAK NILAM

Google Scholar

👨‍🔬 L Hidayatullah

📚 Universitas Gadjah Mada, 2019

2019

372

STRUKTUR SOLVASI DAN SIFAT DINAMIKA ION Cu+ DAN Cu2+ DALAM PELARUT AMONIA CAIR DAN LARUTAN AMONIA: SIMULASI DINAMIKA MOLEKUL AB INITIO QUANTUM MECHANICAL CHARGE FIELD (QMCF)

Google Scholar

👨‍🔬 WD SAPUTRI

📚 Universitas Gadjah Mada, 2019

2019

373

Studi Teoritis Senyawa Turunan Kalkon Hidroksi sebagai Chemosensor Anion

Google Scholar

👨‍🔬 F Perdana, K Wijaya, R Armunanto

📚 Indonesian Journal of Chemical Science 8 (1), 47-52, 2019

2019

374

Computational Study of Hydroxy Chalcone Compound as Potential Chemosensor for Cyanide Anion

Google Scholar

👨‍🔬 F Perdana, R Armunanto, K Wijaya

📚 Prosiding CELSciTech 4, 39-42, 2019

2019

375

PREPARASI KATALIS Ni/BENTONIT DAN APLIKASINYA UNTUK HIDRORENGKAH MINYAK HASIL PIROLISIS PLASTIK LDPE (LOW DENSITY POLYETHYLENE)

Google Scholar

👨‍🔬 JA PUTRA

📚 Universitas Gadjah Mada, 2018

2018

376

SINTESIS KATALIS Cr/ZrO2-SO4 SECARA HIDROTERMAL DAN APLIKASINYA UNTUK HIDRORENGKAH MINYAK SAWIT MENJADI BIOFUEL

Google Scholar

👨‍🔬 R SAFITRI

📚 Universitas Gadjah Mada, 2018

2018

377

SINTESIS, KARAKTERISASI DAN UJI AKTIVITAS KATALIS Ni/ZrO2-SO4 PADA REAKSI HIDRORENGKAH MINYAK KELAPA MENJADI BIOFUEL

Google Scholar

👨‍🔬 NJ PUTERI

📚 Universitas Gadjah Mada, 2018

2018

378

SINTESIS SURFAKTAN NATRIUM METIL ESTER SULFONAT (Na-MES) DARI MINYAK KELAPA DENGAN OPTIMASI RASIO MOL DAN WAKTU SULFONASI

Google Scholar

👨‍🔬 A Syoufian

📚 Universitas Gadjah Mada, 2017

2017

379

Sintesis dan Karakterisasi Surfaktan Dietanolamida dari Minyak Goreng Bekas Terkatalsis CaO/Zeolit

Google Scholar

👨‍🔬 W Lusiana

📚 Universitas Gadjah Mada, 2017

2017

380

KATALIS HETEROGEN SO4/ZrO2 DAN Na2O/ZrO2: PREPARASI, KARAKTERISASI, DAN APLIKASINYA UNTUK KONVERSI LOW GRADE CRUDE PALM OIL MENJADI BIODIESEL

Google Scholar

👨‍🔬 MF Lestari

📚 Universitas Gadjah Mada, 2017

2017

381

Material CuO/bentonit sebagai Antibakteri Escherichia coli

Google Scholar

👨‍🔬 RY FATMAWATI

📚 Universitas Gadjah Mada, 2017

2017

382

PEMODELAN MOLEKUL DAN SINTESIS POLIMER TERCETAK MOLEKUL KOLESTEROL DENGAN MONOMER FUNGSIONAL ASAM ITAKONAT

Google Scholar

👨‍🔬 M Karna Wijaya

📚 Universitas Gadjah Mada, 2016

2016

383

KATALIS Ni-Al2O3-BENTONIT UNTUK HIDRORENGKAH MINYAK SAWIT MENJADI BIOFUEL

Google Scholar

👨‍🔬 RN ANNISA

📚 Universitas Gadjah Mada, 2016

2016

384

MATERIAL Ag2O/BENTONIT SEBAGAI ANTIBAKTERI Escherichia coli

Google Scholar

👨‍🔬 ITA AZIZ

📚 Universitas Gadjah Mada, 2016

2016

385

SINTESIS KATALIS Cr-Al2O3-BENTONIT UNTUK PROSES HIDRORENGKAH MINYAK SAWIT

Google Scholar

👨‍🔬 IKA SEPTIANA

📚 Universitas Gadjah Mada, 2016

2016

386

Modification of natural matrix lac-bagasse for matrix composite films

Google Scholar

👨‍🔬 ND Nurhayati, K Widjaya, Triyono

📚 AIP Conference Proceedings 1710 (1), 030013, 2016

2016

387

PERAN RISET KIMIA PADA PENGEMBANGAN BAHAN BAKAR NABATI (BBN) DI INDONESIA BERBASIS NON EDIBLE BIOMASS

Google Scholar

👨‍🔬 K Wijaya

📚 PROSIDING SEMINAR NASIONAL KIMIA, 2016

2016

388

SINTESIS 1, 1-DIPENTOKSIPENTANA DARI 1-PENTANOL MENGGUNAKAN KATALIS Ni/KARBON AKTIF

Google Scholar

👨‍🔬 M Karna Wijaya, II Falah

📚 Universitas Gadjah Mada, 2015

2015

389

KONVERSI MINYAK KELAPA BEKAS MENJADI BIODIESEL TERKATALISIS H2SO4/BENTONIT DAN KOH/BENTONIT

Google Scholar

👨‍🔬 TU Raharja

📚 Universitas Gadjah Mada, 2015

2015

390

SINTESIS BIODIESEL DARI MINYAK GORENG BEKAS DENGAN BANTUAN GELOMBANG MIKRO TERKATALISIS SO4/ZrO2 DAN KOH/ZrO2

Google Scholar

👨‍🔬 SYE LASSI

📚 Universitas Gadjah Mada, 2015

2015

391

Is Fatimah

Google Scholar

👨‍🔬 SP Yudha, D Rubiyanto, K Wijaya, I Sahroni

📚 Universitas, 2015

2015

392

SINTESIS BIODIESEL DARI MINYAK GORENG BEKAS TERADIASI MICROWAVE DAN TERKATALISIS SO4/ZrO2 DAN Na2O/ZrO2

Google Scholar

👨‍🔬 NC Agustin

📚 Universitas Gadjah Mada, 2015

2015

393

SINTESIS BIODIESEL DARI FRAKSI MINYAK CPO (CRUDE PALM OIL) PARIT MELALUI ESTERIFIKASI DAN TRANSESTERIFIKASI TERKATALISIS ZrO2/SO3-H+ DAN KOH; BIODIESEL SYNTHESIS OF OIL …

Google Scholar

👨‍🔬 I HERLINA

📚 Universitas Gadjah Mada, 2014

2014

394

Website: http://www. ijc. chemistry. ugm. ac. id Email: ijc@ ugm. ac. id or ijcugm@ yahoo. com Vice Editor in Chief

Google Scholar

👨‍🔬 K Wijaya, I Tahir, R Armunanto, TJ Raharjo, NH Aprilita, HBM Rode, ...

📚 INDONESIAN JOURNAL OF CHEMISTRY 14 (3), 2014

2014

395

SINTESIS METIL ESTER MINYAK JARAK (Ricinus communis L) TERKATALISIS KOH/BENTONIT DENGAN VARIASI PENAMBAHAN KOH

Google Scholar

👨‍🔬 N PUSPITASARI

📚 Universitas Gadjah Mada, 2013

2013

396

PENGGUNAAN KATALISATOR ZIRKONIA TERSULFATASI (SO4/ZrO2) dan KOH PADA PEMBUATAN BIODIESEL DARI MINYAK GORENG BEKAS; SULFATED ZIRCONIA (SO4/ZrO2) and KOH CATALYSTS ON PREPARATION …

Google Scholar

👨‍🔬 E Wulandari

📚 Universitas Gadjah Mada, 2013

2013

397

SINTESIS Zn (II)/SILIKA DENGAN METODE SOL-GEL SEBAGAI BAHAN ANTIBAKTERI Esherichia coli DAN Staphylococcus aureus

Google Scholar

👨‍🔬 D ANGGRAINI

📚 Universitas Gadjah Mada, 2013

2013

398

SINTESIS, KARAKTERISASI DAN APLIKASI ELEKTRODA Ti/PbO2 PADA ELEKTRODEGRADASI ZAT WARNA BIRU REAKTIF

Google Scholar

👨‍🔬 A MUKIMIN

📚 Universitas Gadjah Mada, 2013

2013

399

Synthesis, Characterization and Aplication of TiO2 Alumina Pillared Montmorillonite Photocatalyst

Google Scholar

👨‍🔬 I Sumarlan, I Fatimah, K Wijaya

📚 EKSAKTA: Journal of Sciences and Data Analysis, 22-32, 2013

2013

400

JURNAL DIALOG KEBIJAKAN PUBLIK" Menyoal Kebijakan Pengendalian Subsidi BBM"

Google Scholar

👨‍🔬 K Publik

2012

401

Website: http://www. ijc. chemistry. ugm. ac. id Email: ijcugm@ yahoo. com Vice Editor in Chief

Google Scholar

👨‍🔬 K Wijaya, MS Nuryono, R Armunanto, TJ Raharjo, NH Aprilita, HBM Rode, ...

📚 INDONESIAN JOURNAL OF CHEMISTRY 12 (3), 2012

2012

402

Preliminary study on the use of desalination waste for the manufacture of Mg/Al hydrotalcite-like methyl orange as an adsorbent.

Google Scholar

👨‍🔬 E Heraldy, D Prasasti, K Wijaya, SJ Santosa, T Triyono

2012

403

PEMBERDAYAAN MASYARAKAT MENUJU DESAMANDIRI ENERGI MELALUI PENGOLAHAN SAMPAH BUAH JAMBU METE DAN UMBI-UMBIAN MENJADI BIOETANOL DI DESA KARANGMOJO, KECAMATAN KARANGMOJO …

Google Scholar

👨‍🔬 K Wijaya

📚 JURNAL ILMU PENGETAHUANDAN TEKNOLOGI TEPATGUNA UNIVERSITAS GADJAH MA 1 (2011), 2011

2011

404

HIDRORENGKAH KATALITIK MINYAK SAWIT MENJADI FRAKSI BIOFUEL CAIR MENGGUNAKAN KATALIS Cr/ZEOLIT ALAM AKTIF

Google Scholar

👨‍🔬 GB Balabuana

📚 Universitas Gadjah Mada, 2011

2011

405

PREPARATION OF ZIRCONIUM DISPERSED IN ALUMINIUM PILLARED MONTMORILLONITE AND ITS ACTIVITY IN PHENOL HYDROXYLATION

Google Scholar

👨‍🔬 IS FATIMAH, NARSITO, K WIJAYA

📚 Chemical, Biological And Environmental Engineering, 133-137, 2010

2010

406

Nanomaterial Berlapis dan Berpori : Sintesis, Karakterisasi, dan Peranannya sebagai Material Multifungsi (Pidato Pengukuhan Guru Besar UGM)

Google Scholar

👨‍🔬 K Wijaya

2010

407

MODELING OF ALKYL SALICYLATE COMPOUNDS AS UV ABSORBER BASED ON ELECTRONIC TRANSITION BY USING SEMIEMPIRICAL QUANTUM MECHANICS ZINDO/s CALCULATION

Google Scholar

👨‍🔬 I Tahir, K Wijaya, T Subarni

📚 Indonesian Journal of Chemistry 2 (1), 64-72, 2010

2010

408

Konversi lemak itik menjadi biodiesel dengan katalis zeolit alam teraktivasi H2SO4 dan NaOH

Google Scholar

👨‍🔬 AT KURNIA

📚 Universitas Gadjah Mada, 2009

2009

409

CONTROLLINGFACTORIN ALUMINA PilLARED SAPONITEAND ALUMINA PilLARED MONTMORillONITE SYNTHESIS

Google Scholar

👨‍🔬 I Fatlmah, KW Narsito

📚 Indonesian Journal of Chemistry 9 (2009), 2008

2008

410

Modifikasi zeolit alam dengan TiO2 dan aplikasinya sebagai fotokatalis dalam reaksi degradasi untuk menurunkan angka COD limbah cair industri tekstil

Google Scholar

👨‍🔬 Y UTUBIRA

📚 Universitas Gadjah Mada, 2006

2006

411

Zeolit termodifikasi TiO2 dan aplikasinya sebagai fotokatalis untuk menurunkan angka COD limbah cair industri tekstil

Google Scholar

👨‍🔬 M MIRZAN

📚 Universitas Gadjah Mada, 2006

2006

412

Salt-dependent binding of iron (II) mixed-ligand complexes containing 1, 10-phenanthroline and dipyrido (3, 2-a:,-c) phenazine to calf thymus DNA

Google Scholar

👨‍🔬 Mudasir, K Wijaya, E Tri Wahyuni, N Yoshioka, H Inoue

📚 Biophysical Chemistry 121 (1), 44-50, 2006

2006

413

Pengaruh Konsentrasi Logam Ti terhadap Karakter Fisikokimiawi TiO₂-Zeolit dan Pemanfaatan TiO₂-Zeolit untuk Fotodegradasi Metilen Biru

Google Scholar

👨‍🔬 I Fatimah, K Wijaya

📚 Universitas Islam Indonesia, 2005

2005

414

Sintesis lempung montmorillonit terpilar Fe2O3 dan kajian sifat-sfat kimia fisiknya= Synthesis of Fe2O3 pillared montmorillonite clay and study of its physico-chemical properties

Google Scholar

👨‍🔬 IAG Widihati, K Wijaya, MU Yahya

📚 Sains dan Sibernatika 17 (2004), 2004

2004

415

Preparasi komposit besi oksida-Montmorilonit dan aplikasinya sebagai adsorben senyawa benzena

Google Scholar

👨‍🔬 SJ SEKEWAEL

📚 Universitas Gadjah Mada, 2004

2004

416

Original Communications-Polysulfonylamines, CLXVII. Hydrogen Bonding in Crystalline Onium Dimesylamides: A Robust Three-Point Pattern Integrated into a 2D, a Two-fold …

Google Scholar

👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones

📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 59 (1), 17-26, 2004

2004

417

Original Communications-Polysulfonylamines, CLXX. Hydrogen Bonding in Crystalline Onium Dimesylamides: Three Structures Involving NH2-Substituted 1, 3, 5-Triazinium Cations …

Google Scholar

👨‍🔬 K Wijaya, O Moers, D Henschel, A Blaschette, PG Jones

📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 59 (7), 747-756, 2004

2004

418

Polysulfonylamines, CLXX [1]. Hydrogen bonding in crystalline onium dimesylamides: Three structures involving NH2-substituted 1, 3, 5-triazinium cations (including melaminium)

Google Scholar

👨‍🔬 K Wijaya, O Moers, D Henschel, A Blaschette, PG Jones

📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 59 (7 …, 2004

2004

419

PEMBUATAN KOMPLEKS MIXED-LIGAND BESI (II) SEBAGAI SENYAWA INTERKALATOR DNA

Google Scholar

👨‍🔬 KW Mudasir, DH Tjahjono

📚 Lembaga Penelitian UGM, 2003

2003

420

SINTESIS PILLARED-BENTONITE DAN APLIKASINYA UNTUK PHOTO-FUNCTIONAL MATERIALS

Google Scholar

👨‍🔬 K Wijaya

📚 text, 2003

2003

421

A ROBUST EIGHT–MEMBERED RING MOTIF IN THE HYDROGEN-BONDED STRUCTURE OF 2-(PHENYLAMINO) PYRIDINIUM-DI (METHANESULFONYL) AMIDATE

Google Scholar

👨‍🔬 K Wijaya, I Tahir, A Blaschette, O Mours, PG Jones

📚 Indonesian Journal of Chemistry 2 (1), 73-78, 2002

2002

422

Determination Of Many-Body Effect Of [Co (NF13) â] 2*(n= 1-6)= Penentuan Pengaruh Badan-Banyak Pada Kompleks [Co (NH,), J2*(n= 1-6) Berdasarkan Perhitungan Ab Initio

Google Scholar

👨‍🔬 HD Pranowo, K Wijaya, B Setiaji, RS Janu

📚 Indonesian Journal of Chemistry 2 (2002), 2002

2002

423

THE INTERACTION OF Co 2+-AMMONIA MODELLING: THE COMPARATIVE STUDY BETWEEN AB INITIO AND ELECTRON CORRELATION METHODS

Google Scholar

👨‍🔬 HD Pranowo, F Foliatini, K Wijaya

📚 Indonesian Journal of Chemistry 2 (2), 2002

2002

424

Analisis regresi linear multivariabel:: Hubungan kuantitatif struktur molekul dan sifat fisika (Titik didih, titik leleh dan kerapatan) berbagai senyawa organik

Google Scholar

👨‍🔬 M YAPIN

📚 Universitas Gadjah Mada, 2002

2002

425

Polysulfonylamines, CLI. Strong and weak hydrogen bonding in the crystal structures of 8-hydroxyquinolinium and 8-aminoquinolinium dimesylamide

Google Scholar

👨‍🔬 D Henschel, O Moers, K Wijaya, A Blaschette, PG Jones

📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 57 (5 …, 2002

2002

426

Polysulfonylamine, CLIX [1]. Eine Vielfalt supramolekularer Synthone in zwei Molekülkomplexen von Di (4-halogenbenzolsulfonyl) aminen mit Sauerstoffbasen/Polysulfonylamines …

Google Scholar

👨‍🔬 T Hamann, K Wijaya, O Moers, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung B 57 (10), 1152-1164, 2002

2002

427

Polysulfonylamines, CLXI. A novel 1, 2-dihydroimidazoquinolinylium cation: Serendipitous isolation and crystal structure of the corresponding dimesylamide

Google Scholar

👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones

📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 57 …, 2002

2002

428

Original Communications-Polysulfonylamines, CXLIII. Role of Weak Hydrogen Bonds (CH... O) in the Crystal Structures of 2, 6-Dimethylpyridinium, 1-Hydroxypyridinium and …

Google Scholar

👨‍🔬 O Moers, K Wijaya, T Hamann, A Blaschette, PG Jones

📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 56 (10), 1052-1062, 2001

2001

429

Original Communications-Polysulfonylamines, CXLII. A Supramolecular Monomer-Dimer Pair: Strong and Weak Hydrogen Bonding in the Crystal Structures of Pyridinium Dimesylamide and

Google Scholar

👨‍🔬 O Moers, I Lange, K Wijaya, A Blaschette, PG Jones

📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 56 (10), 1041-1051, 2001

2001

430

Polysulfonylamines, CXLII. A supramolecular monomer-dimer pair: Strong and weak hydrogen bonding in the crystal structures of pyridinium dimesylamide and 4, 4'-bipyridinediium …

Google Scholar

👨‍🔬 O Moers, I Lange, K Wijaya, A Blaschette, PG Jones

📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 56 …, 2001

2001

431

Original Communications-Polysulfonylamines, CXXV. New Complexes of Disulfonylamines with Crown Ethers-Preconceived or Discovered by Serendipity (In German)

Google Scholar

👨‍🔬 D Henschel, K Wijaya, O Moers, A Blaschette, PG Jones

📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 55 (3-4), 299-316, 2000

2000

432

Original Communications-Polysulfonylamines, CXXVI. Hydrogen Bonding in Crystalline Onium Dimesylamides: A Robust Eight-Membered Ring Synthon in Coexistence with a Third …

Google Scholar

👨‍🔬 O Moers, K Wijaya, I Lange, A Blaschette, PG Jones

📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 55 (8), 738-752, 2000

2000

433

Original Communications-Polysulfonylamines, CXXVII. Hydrogen Bonding in Crystalline Onium Dimesylamides: A Robust Eight-Membered Ring Synthon as a Component in Three …

Google Scholar

👨‍🔬 K Wijaya, O Moers, D Henschel, A Blaschette, PG Jones

📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 55 (8), 753-762, 2000

2000

434

Polysulfonylamine, CXXVI [1] Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Ein robustes Achtring-Synthon in Koexistenz mit einem dritten Wasserstoffbrückenmotiv …

Google Scholar

👨‍🔬 O Moers, K Wijaya, I Lange, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung B 55 (8), 738-752, 2000

2000

435

Original Communications-Polysulfonylamines, CXIX. Hydrogen Bonding in Crystalline Onium Dimesylamides: An Antidromic Eight-Membered Ring Pattern as a Robust Supramolecular …

Google Scholar

👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones

📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 54 (11), 1441-1449, 1999

1999

436

Nichtkovalente Disulfonylamin-Derivate: Onium-Salze und Coronaplexe

Google Scholar

👨‍🔬 K Wijaya

📚 na, 1999

1999

437

POLYSULFONYLAMINES, CXIX [1, 2]: HYDROGEN BONDING IN CRYSTALLINE ONIUM DIMESYLAMIDES: AN ANTIDROMIC EIGHT-MEMBERED RING PATTERN AS A ROBUST SUPRAMOLECULAR SYNTHON-THREE …

Google Scholar

👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones

📚 ZEITSCHRIFT FUR NATURFORSCHUNG 54 (11), 1441-1449, 1999

1999

438

Original Communications-Polysulfonylamines, CXVIII. Hydrogen Bonding in Crystalline Onium Dimesylamides: Three prim-Ammonium Dimesylamides Exhibiting Two-or Three-Dimensional …

Google Scholar

👨‍🔬 D Henschel, O Moers, K Wijaya, A Blaschette, PG Jones

📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 54 (11), 1431-1440, 1999

1999

439

Original Communications-Polysulfonylamines, CXII. A Novel Solid-State Aspect of 2-Pyridones: Isolation and X-Ray Structures of Bis (2-pyridone) hydrogen (l) and Bis (6-methyl-2 …

Google Scholar

👨‍🔬 K Wijaya, O Moers, A Blaschette, RG Jones

📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 54 (5), 643-648, 1999

1999

440

Original Communications-Polysulfonylamines, CXVII. Hydrogen Bonding in Crystalline Onium Dimesylamides: Six Systematically Varied sec-Ammonium Dimesylamides Exhibiting Six …

Google Scholar

👨‍🔬 O Moers, K Wijaya, D Henschel, A Blaschette, RG Jones

📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 54 (11), 1420-1430, 1999

1999

441

Polysulfonylamine, CXVIII Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Drei prim.-Ammonium-dimesylamide mit zwei-oder dreidimensionalen Wasserstoffbrückenmustern …

Google Scholar

👨‍🔬 D Henschel, O Moers, K Wijaya, A Blaschette, PG Jones

📚 Zeitschrift für Naturforschung B 54 (11), 1431-1440, 1999

1999

442

Polysulfonylamines, XCVII. Di (organosulfonyl)-amines and their Conjugate Anions as Simultaneous Building Blocks in Two Supramolecular Structures (In German)

Google Scholar

👨‍🔬 D Henschel, K Wijaya, O Moers, A Blaschette, PG Jones

📚 Zeitschrift fur Naturforschung B-Journal of Chemical Sciences 52 (10), 1229-1236, 1997

1997

443

Polysulfonylamines. 90. Carboxylic acid dimers, water dimers and 18-crown-6 molecules as building blocks in a supramolecular chain polymer: Synthesis and structure of (CH2CH2O …

Google Scholar

👨‍🔬 K Wijaya, O Moers, A Blaschette, G Jones

📚 ZEITSCHRIFT FUR NATURFORSCHUNG SECTION BA JOURNAL OF CHEMICAL SCIENCES 52 (8 …, 1997

1997

444

THE EFFECT OF TEMPERATURE ON BIODIESEL CONVERSION FROM CALLOPHYLUM INOPHYLUM L (NYAMPLUNG) OIL CATALYZED BY H-ZEOLITE AND NaOH

Google Scholar

👨‍🔬 K Wijaya, A Syoufian, J Kusmasari

📚 fuel 3, 6, 0

445

KAJIAN TEORITIS SELEKTIVITAS THIACROWN ETHER 18S6 DAN 18-UT-6 TERHADAP SENYAWA LOGAM TRANSISI CF3COOAG DAN CDCL2 DENGAN METODE SEMIEMPIRIK ZINDO

Google Scholar

👨‍🔬 S HAMDANI, K WIJAYA, I TAHIR

📚 Prosiding Seminar Nasional Kimia XV ISSN NO 1410, 8313, 0

446

BIODIESEL FROM CATFISH OIL (Clarias Gariepinus)

Google Scholar

👨‍🔬 GB Balabuana, K Wijaya, W Trisunaryanti

447

SINTESIS BIODIESEL DARI LIMBAH MINYAK NABATI TERKATALISIS (SO4/ZrO2) DAN (KOH/ZrO2)

Google Scholar

👨‍🔬 K Wijaya, E Wulandari

448

Quantitative Structure and Glass Transition Temperature Relationships Analysis of Polyethylene Analogues

Google Scholar

👨‍🔬 I Tahir, K Wijaya, B Setiaji, Y Hidayat, BM Rode

449

PRELIMINARY STUDIES ON HYDROTALCITE-LIKE SYNTHESIS USING MAGNESIUM FROM DESALINATION WASTE

Google Scholar

👨‍🔬 E Heraldy, SJ Triyono, K Wijaya, NB Alnavis, ES Rustina

450

Polysulfonylamine, CXVII [1] Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Sechs systematisch variierte s££.-Ammonium-dimesylamide mit sechs verschiedenen null-, ein …

Google Scholar

👨‍🔬 CXV Polysulfonylamines, O Moers, K Wijaya, D Henschel, A Blaschette, ...

451

ANALYSIS OF HYDROGEN ADSORPTION AND DIFFUSION ON Mg (0001) SURFACE: AN AB INITIO DFT STUDY

Google Scholar

👨‍🔬 IW Sutapa, R Armunanto, K Wijaya

📚 Jurnal Berkala Ilmiah Sains dan Terapan Kimia 4 (1), 23-28, 0

452

Drei prim.-Ammonium-dimesylamide mit zwei-oder dreidimensionalen Wasserstoffbrückenmustern

Google Scholar

👨‍🔬 C Polysulfonylamines, D Henschel, O Moers, K Wijaya, A Blaschette, ...

453

Polysulfonylamine, XCVII [1] Di (organosulfonyl) amine und ihre konjugierten Anionen als simultane Baugruppen in zwei supramolekularen Strukturen

Google Scholar

👨‍🔬 X Polysulfonylamines, D Henschel, K Wijaya, O Moers, A Blaschette, ...

454

Synthesis of Ag2O/Bentonite as Antibacterial Material Candidate

Google Scholar

👨‍🔬 ITA Aziz, YS Kurniawan, I Tahir, K Wijaya

455

Benzo-18-krone-6 Ð Acetonitril (1/2): Kristallisation und Tieftemperatur-Röntgenstrukturanalyse

Google Scholar

👨‍🔬 K Wijaya, O Moers, A Blaschette, PG Jones

456

Sumerta., Wijaya, Karna., & Tahir, Iqmal. 2002

Google Scholar

👨‍🔬 I Kadek

📚 Fotodegradasi MEtilen Biru Menggunakan Katalis TiO2-Montmorilonit dan Sinar UV, 0

457

Polysulfonylamine, CXXV [1]. Neue Komplexe von Disulfonylaminen mit Kronenethern-im voraus entworfen oder zufällig entdeckt

Google Scholar

👨‍🔬 C Polysulfonylamines, D by Serendipity, D Henschel, K Wijaya, O Moers, ...

458

MATERIAL CuO/BENTONIT SEBAGAI BAHAN ANTIBAKTERI ESCHERICHIA COLI

Google Scholar

👨‍🔬 RY Fatmawati, K Wijaya, I Tahir

459

OPTIMISASI RASIO DIAZINON/ASAM METAKRILAT SECARA TEORITIK BERDASARKAN METODA SEMIEMPIRIK AM1 UNTUK SINTESIS POLIMER TERCETAK MOLEKUL

Google Scholar

👨‍🔬 A Saputra, K Wijaya, MN Ahmad, I Tahir

📚 Jurnal Berkala Ilmiah Sains dan Terapan Kimia 7 (2), 89-102, 0

460

Kinetic Model of Crude Palm Oil Hydrocracking Over Ni/Mo ZrO

Google Scholar

👨‍🔬 H Hasanudin, MS Addy Rachmat, K Wijaya

461

Journal Submission

Google Scholar

👨‍🔬 I Arief, HD Pranowo, M Mudasir, K Wijaya

462

BIOFUEL DI INDONESIA

Google Scholar

👨‍🔬 PDANSP PROSPEK, K WIJAYA

463

Sustainable Energy Technologies and Assessments

Google Scholar

👨‍🔬 K Wijaya, T Jarin, C Sumathijonesf, OH Abd-Elkader, MOH Abd-Elkader, ...

464

Polysulfonylamine, CLIX [1]. Eine Vielfalt supramolekularer Synthone in zwei Molekülkomplexen von Di (4-halogenbenzolsulfonyl) aminen mit Sauerstoffbasen

Google Scholar

👨‍🔬 C Polysulfonylamines, T Hamann, K Wijaya, O Moers, A Blaschette, ...

465

Polysulfonylamine, CLXI [1]. Ein neuartiges 1, 2-Dihydroimidazochinolinylium-Kation: Zufällige Isolierung und Kristallstruktur des entsprechenden Dimesylamids

Google Scholar

👨‍🔬 C Polysulfonylamines, D Cation, K Wijaya, O Moers, A Blaschette, ...

466

Polysulfonylamine, CLXX [1]. Wasserstoffbrucken in kristallinen Onium-dimesylamiden: Drei Strukturen mit NH2-substituierten 1, 3, 5-Triazinium-Kationen (einschließlich Melaminium)

Google Scholar

👨‍🔬 TSI NH2-Substituted, T Cations, K Wijaya, O Moers, D Henschel

467

Polysulfonylamine, CXVIII [1] Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Drei prim.-Ammonium-dimesylamide mit zwei-oder dreidimensionalen Wasserstoffbrückenmustern

Google Scholar

👨‍🔬 C Polysulfonylamines, D Henschel, O Moers, K Wijaya, A Blaschette

468

Polysulfonylamine, CXIX [1, 2] Wasserstoffbrücken in kristallinen Onium-dimesylamiden: Ein antidromes Achtringmuster als robustes supramolekulares Synthon Ð Drei prototypische …

Google Scholar

👨‍🔬 C Polysulfonylamines, K Wijaya, O Moers, A Blaschette, PG Jones

469

Polysulfonylamine, CLI [1]. Starke und schwache Wasserstoffbrücken in den Kristallstrukturen von 8-Hydroxychinolinium-und 8-Aminochinolinium-dimesylamid

Google Scholar

👨‍🔬 CLI Polysulfonylamines, D Henschel, O Moers, K Wijaya, A Blaschette

470

PROGRAM PASCASARJANA

Google Scholar

👨‍🔬 SK Dirjen

471

International Journal of Technology

Google Scholar

👨‍🔬 MA Heryanto, B Kusumoputro

472

Case Studies in Chemical and Environmental Engineering

Google Scholar

👨‍🔬 AJ Saviola, K Wijaya, A Syoufian, WD Saputri

473

One-Stage Improvement of Bio-Oil Through Hydrodeoxygenation with the Addition of Ethanol Solvent Using a Mordenite-Based Ni Metal Catalyst

Google Scholar

👨‍🔬 MI Hasibuan, K Wijaya, JL Sihombing, AN Pulungan, A Haryono, ...

📚 Muhammad Afdhal and, Rahayu and Gea, Saharman, One-Stage Improvement of Bio …, 0

474

Scientific Committee: 4th International Symposium on Applied Chemistry (ISAC) 2018

Google Scholar

👨‍🔬 NH Voelcker, S Saka, V Degirmenci, KM Khan, K Wijaya, D Lennon, ...

475

Results in Engineering

Google Scholar

👨‍🔬 A Mutafi, JM Irwan, N Yidris, AM Ghaleb, S Al-Alimi, M Amran, M Qasem, ...

476

IIALAMAN PENGESAHAN

Google Scholar

👨‍🔬 AS Hutama, S Si, K Wijaya

477

Next Materials

Google Scholar

👨‍🔬 EC Sambara, AJ Saviola, A Syoufian, RA Fitria, A Mumtaziyah, K Rozana, ...

478

Synthesis of SO4 2–/ZrO2 Solid Acid and Na2O/ZrO2 Solid Base Catalysts Using Hydrothermal Method for Biodiesel Production from Low-Grade Crude Palm Oil Sri Setyaningsih1 …

Google Scholar

👨‍🔬 NW Yuwono, K Wijaya

479

The Role of Adsorption in Environmental Remediation Using MXene-Based Composites

Google Scholar

👨‍🔬 K Wijaya, AJ Saviola, A Syoufian, RA Fitria, P Wahyuningsih, P Chandra, ...

📚 MXene Composites for Biological and Environmental Applications, 112-137, 0

480

MXene Composites for Water Pollution Control and Photocatalytic Effects

Google Scholar

👨‍🔬 L Kabir, K Wijaya, WC Oh

📚 MXene Composites for Biological and Environmental Applications, 166-234, 0

481

Polysulfonylamine, CLIII [1]. Schwache Wasserstoffbrücken mit aktivierten Methyldonoren: Kristallstrukturen von Cholinium-, Betainium-und Dimethyl [2-(dimethylamino) ethyl …

Google Scholar

👨‍🔬 C Polysulfonylamines, D Henschel, O Moers, K Wijaya, A Wirth, ...

482

Polysulfonylamine, CXLII [1]. Ein supramolekulares Monomer-Dimer-Paar: Starke und schwache Wasserstoffbrücken in den Kristallstrukturen von Pyridinium-dimesylamid und 4, 4 …

Google Scholar

👨‍🔬 P Dimesylamide, B Bis

DataCiteX Author Profile

Author Impact Score

3,665

30

115

482

2025

T2

16.40

141.50

7.60

322

Pt-promoted sulfated zirconia as cataly...

Smart Insight Box

Author Impact Score Trend

Most Cited

Yearly Citations

Yearly Citations Chart

Year-wise Citation Share

Top Research Articles

Explore the Global Research Landscape