| Hydrothermal treatment of SO4/TiO2 and TiO2/CaO as heterogeneous catalysts for the conversion of Jatropha oil into biodiesel RA Pratika, K Wijaya, W Trisunaryanti Journal of Environmental Chemical Engineering 9 (6), 106547, 2021 | 29 | 2021 |
| Recent progress on sulfated nanozirconia as a solid acid catalyst in the hydrocracking reaction SJ Sekewael, RA Pratika, L Hauli, AK Amin, M Utami, K Wijaya Catalysts 12 (2), 191, 2022 | 22 | 2022 |
| Effect of Nickel Concentration in Natural Zeolite as Catalyst in Hydrocracking Process of Used Cooking Oil SE Purba, K Wijaya, RA Pratika, PL Hariani Asian Journal of Chemistry 32 (11), 2773-2777, 2020 | 11 | 2020 |
| Dealuminated and desilicated natural zeolite as a catalyst for hydrocracking of used cooking oil into biogasoline SE Purba, K Wijaya, W Trisunaryanti, RA Pratika Mediterr. J. Chem 11, 74-83, 2020 | 10 | 2020 |
| The potency of hydrothermally prepared sulfated silica (SO4/SiO2) as a heterogeneous acid catalyst for ethanol dehydration into diethyl ether RA Pratika, K Wijaya, M Utami, S Mulijani, A Patah, S Alarifi, RR Mani, ... Chemosphere 341, 139822, 2023 | 6 | 2023 |
| Silica-based catalysts for biodiesel production: A Brief Review A Aneu, RA Pratika, Hasanudin, S Gea, K Wijaya, WC Oh Silicon 15 (12), 5037-5047, 2023 | 3 | 2023 |
| Effect of Sulfation on Physicochemical Properties of ZrO2 and TiO2 Nanoparticles K Wijaya, RA Pratika, ER Fitri, PF Prabani, Y Candrasasi, WD Saputri, ... Korean Journal of Materials Research 32 (3), 125-131, 2022 | 3 | 2022 |
| Sulfuric acid-activated silica gel as a potential solid acid catalyst W Wangsa, RA Pratika, TS Ningrum, K Wijaya Key Engineering Materials 920, 159-165, 2022 | 2 | 2022 |
| Recent Trends and Application of Nanomaterial Based on Carbon Paste Electrodes: A Short Review K Wijaya, RA Pratika, A Nadia, F Rahmawati, R Zainul, WC Oh, ... Transdisciplinary Research and Education Center for Green Technologies …, 2023 | 1 | 2023 |
| Microwave Radiation-Assisted Chitin Deacetylation: Optimization by Response Surface Methodology (RSM) RAP Iqmal Tahir, Karna Wijaya, Mudasir, Dita Krismayanti, Aldino Javier ... Korean Journal of Material Science 34 (2), 85-94, 2024 | | 2024 |
| Modification of TiO2 as SO4/TiO2 Acid and CaO/TiO2 Base Catalysts and Their Applications in Conversion of Waste Frying Oil (WFO) into Biodiesel K Wijaya, RA Pratika, W Trisunaryanti, AD Tikoalu Advances in Catalysts Research, 377-414, 2024 | | 2024 |
| Upaya Meningkatkan Minat Siswa/i SMAN 1 Palangka Raya Untuk Melanjutkan Kuliah ke Jenjang Perguruan Tinggi RA Pratika, R Agnestisia, DAP Wardani, A Rahman, IN Sudyana Beguai Jejama – Jurnal Pengabdian Kesehatan 4 (2), 42-46, 2023 | | 2023 |
| Nanosulfated Silica as a Potential Heterogeneous Catalyst for the Synthesis of Nitrobenzene K Amri, A Sabilladin, RA Pratika, A Sudarmanto, H Ismail, MF Lestari, ... Korean Journal of Materials Research 33 (7), 265-272, 2023 | | 2023 |
| Aluminosilicate Based Solid Acid Catalyst: Effect of Calcination Time, OH/Al Ratio and Keggin Ion Concentration on its Preparation A Mara, RA Pratika, K Wijaya, W Trisunaryanti, M Mudasir, H Ismail, ... Advances in Science and Technology 115, 1-8, 2022 | | 2022 |
| Recent Progress on Sulfated Nanozirconia as a Solid Acid Catalyst in the Hydrocracking Reaction. Catalysts 2022, 12, 191 SJ Sekewael, RA Pratika, L Hauli, AK Amin, M Utami, K Wijaya Contemporary Solutions for Advanced Catalytic Materials with a High Impact …, 2022 | | 2022 |
| KATALIS ASAM SO4/TiO2 DAN BASA CaO/TiO2: PREPARASI, KARAKTERISASI DAN APLIKASINYA DALAM KONVERSI MINYAK SAWIT BEKAS MENJADI BIODIESEL RAYU PRATIKA Universitas Gadjah Mada, 2020 | | 2020 |
| Catalytic Conversion of Used Cooking Oil into Biodiesel by Utilizing Double Zirconia Catalyst as Acid Catalyst (So4/Zro2) and Base Catalyst (Zro2/Cao) RA Pratika, Z Nafisah, Y Yuliana, S Syarpin, RM Iqbal, Y Ysrafil, K Wijaya Available at SSRN 4712920, 0 | | |
Karna WijayaProfessor of Chemistry, Gadjah Mada UniversityVerified email at ugm.ac.id
