Article Per Year (5 Year)
p-Index From 2021 - 2026
2.248
P-Index
This Author published in this journals
All Journal VALENSI CHEMISTRY PROGRESS JURNAL KIMIA SAINS DAN APLIKASI EduChemia: Jurnal Kimia dan Pendidikan ALCHEMY Jurnal Penelitian Kimia Jurnal Riset Sains dan Kimia Terapan Bulletin of Chemical Reaction Engineering & Catalysis
Isalmi Aziz
Program Studi Kimia Fakultas Sains Dan Teknologi Universitas Islam Negeri Syarif Hidayatullah Jakarta
Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Engineering Environmental Science Materials Science & Nanotechnology

Published : 32 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 32 Documents
Search

 1   2   3   4 
Catalytic Performance of Cu-Ni supported on Rice Husk Ash-derived SiO2 for the Hydrogenation of Ethylene Carbonate to Ethylene Glycol Maharani, Najiah Sephia; Rahmawati, Novia Dwi; Aziz, Isalmi; Maryati, Yati; Agustian, Egi; Widjaya, Robert Ronal; Yati, Indri; Prasetyo, Joni; Rinaldi, Nino; Dwiatmoko, Adid Adep
Bulletin of Chemical Reaction Engineering & Catalysis 2025: BCREC Volume 20 Issue 1 Year 2025 (April 2025)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20336

Abstract

Ethylene glycol, a crucial compound extensively utilized in solvents, coolants, antifreeze, polyester fiber production, and as a natural gas-drying agent, can be synthesized via the hydrogenation of ethylene carbonate. In this study, the synthesis, characterization, and catalytic performance of Cu-Ni/SiO2 catalysts for this reaction, utilizing silica (SiO2) derived from rice husk ash, were investigated. Silica was impregnated with copper (Cu) and nickel (Ni) by varying the weight ratio (Cu:Ni = 10, 7:3, 3:7, 10) to prepare bimetallic catalysts. X-ray Diffraction (XRD) analysis confirmed the presence of both Cu and Ni phases in all the catalysts. The 3Cu7Ni/SiO2 catalyst displayed the lowest reduction temperature and the largest surface area (257.97 m²/g). The 7Cu3Ni/SiO2 catalyst exhibited the highest acidity (1.91 mmol/g) and superior metal dispersion, as confirmed by the Field Emission Scanning Electron Microscopy - Energy Dispersive X-Ray (FE-SEM-EDX) analysis. Catalytic activity was evaluated in a batch reactor under 40 bar H2 pressure at 150 °C for 3 h with a catalyst-to-ethylene carbonate ratio of 5:1. Among the catalysts examined, the 7Cu-3Ni/SiO2 composition demonstrated the highest catalytic performance, achieving 15.14% conversion of ethylene carbonate and 80.51% selectivity towards ethylene glycol. Copyright © 2025 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Natural Zeolite as Mo and MoP Catalysts Support for Catalytic Deoxygenation of Jatropha Oil Aziz, Isalmi; Farhan, Muhammad; Saridewi, Nanda; Azizah, Yulyani Nur; Muawanah, Anna; Nurbayti, Siti; Dwiatmoko, Adid Adep; Adhani, Lisa
Jurnal Kimia Valensi Jurnal Kimia VALENSI, Volume 11, No. 1, May 2025
Publisher : Department of Chemistry, Faculty of Science and Technology Syarif Hidayatullah Jakarta State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v11i1.45272

Abstract

Non-edible oil, such as Jatropha oil, is an interesting feedstock for the development of renewable diesel (green diesel). Catalytic deoxygenation using natural zeolite-supported Mo-based catalysts is a promising process for the conversion of Jatropha oil to green diesel. Mo and MoP catalysts supported on natural zeolite were synthesized by wet impregnation at a concentration of 5% (w/w). The catalysts were characterized by XRD, XRF, SAA and NH3-TPD. The catalysts were successfully synthesized with the appearance of Mo and MoP peaks on the catalyst diffractogram. XRF results also showed that Mo and P were present in the catalyst. Metal impregnation decreased the surface area and pore volume of the catalyst, but increased the average pore diameter. The NH3-TPD profile of the catalyst showed that the weak acid sites of both catalysts were larger than the strong acid sites. Based on the activity test of catalytic deoxygenation of Jatropha oil, the MoP/HZ catalyst produced a higher conversion (67%) and liquid product yield (79%) than Mo/HZ. This is associated with a larger pore diameter, so that the distribution of reactants on the catalyst surface is more optimal. However, the highest green diesel selectivity of 82% is produced by the Mo/HZ catalyst. The Mo/HZ catalyst is more oriented towards the HDO reaction, whereas the MoP/HZ catalyst is more oriented towards the DCO/DCO2 reaction.
Co-Authors Adawiah Adawiah Adawiah Adawiah adawiah adawiah, adawiah Adid Adep Dwiatmoko Agung Setia Nugraha Agustino Zulys Anna Muawanah Annisa Shabrina Arif Rahman Arif Rahman Hakim Badrul Ulum Badrul Ulum Biaunik Niski Kumila Christie Adi Octavia Dasumiati Dasumiati Dede Sukandar Dwiatmoko, Adid Adep Dzikri Anfasa Firdaus Edra Aditya Fhilipia Ardine Egi Agustian Eka Puspa Sari Farishi, Salman Fira Luthfiana Fitri Febriyani Fitria, Shella Hendrawati Hendrawati Hendrawati Hendrawati Joni Prasetyo, Joni Juwita Suwandari Lian Risa Adinda, Ade Lisa Adhani Lisa Adhani Lisa Adhani Lisa Adhani Lisa Adhani Lisa Adhani Maharani, Najiah Sephia Mohammad Ali Marwono Muhammad Akbar Tafdila Muhammad Farhan Muhammad Ihsan Maulana Muhammad Nizar Aristya Muhammad Shofyan Gunawan Nanda Saridewi, Nanda Nani Suryani Nino Rinaldi Niski Kumila, Biaunik Novia Dwi Rahmawati Noviyan Darmawan Nur Hijjah Bayani Fadhilah Nur Mahrunnisa Nurhasni Nurhasni Purwantiningsih Sugita Reza Falepi Riyanti, Aditya Saeful Rohman Saeful Rohman Savitri Savitri Selviana Rustanti Siti Nurbayti Siti Nurbayti Siti Nurbayti Siti Nurbayti Thamzil Las Wahyu Permata Wahyu Permata Widjaya, Robert Ronal Wulandari Oktavia Yati Maryati yati, indri Yessinta Kurnianti Yulyani Nur Azizah