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

SJ Sekewael, RA Pratika, L Hauli, AK Amin, M Utami… - Catalysts, 2022 - mdpi.com
Zirconia has advantageous thermal stability and acid–base properties. The acidity character
of ZrO2 can be enhanced through the sulfation process forming sulfated zirconia (ZrO2 …

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… - Chemosphere, 2023 - Elsevier
The dehydration of ethanol into diethyl ether over a SO 4/SiO 2 catalyst was investigated.
The SO 4/SiO 2 catalysts were prepared by the sulfation method using 1, 2, and 3 M of …

Silica-based catalysts for biodiesel production: A Brief Review

A Aneu, RA Pratika, Hasanudin, S Gea, K Wijaya… - Silicon, 2023 - Springer
Biodiesel, an environmentally friendly fuel, has been developed as a renewable fuel. It is
accomplished through either a transesterification reaction with a base catalyst or a two-step …

Facile Fabrication of SiO2/Zr Assisted with EDTA Complexed-Impregnation and Templated Methods for Crude Palm Oil to Biofuels Conversion via Catalytic …

H Hasanudin, WR Asri, Z Fanani, SJ Adisti, F Hadiah… - Catalysts, 2022 - mdpi.com
Zr-containing SiO2 and their parent catalysts were fabricated with different methods using
EDTA chelation and template-assist. The activity of the catalysts was explored in crude palm …

The catalytic performance of FexMn1-xWO4 as novel wolframite-type nanocatalysts for the selective dehydration of methanol into dimethyl ether

MN Goda, M Abd El-Aal, E Magdy, AEAA Said - Molecular Catalysis, 2023 - Elsevier
Selective production of dimethyl ether (DME), as a second-generation biofuel, under mild
green conditions is still a challenge. Herein, Fe x Mn 1-x WO 4 wolframite-type materials …

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

AJ Saviola, K Wijaya, WD Saputri, L Hauli, AK Amin… - Applied …, 2023 - Springer
Natural zeolite and sulfated natural zeolite catalyst materials have been successfully
prepared, characterized, and applied as a replacement for the role of a sulfuric acid catalyst …

Development of chromium-impregnated sulfated silica as a mesoporous catalyst in the production of biogasoline from used cooking oil via a hydrocracking process

K Wijaya, TS Ningrum, AJ Saviola, N Prasetyo… - Reaction Kinetics …, 2024 - Springer
The production of biofuels as an alternative to fossil fuels has been a significant challenge
until recently. The present work focuses on hydrocracking used cooking oil (UCO) into …

Enhancement of Catalytic Activity on Crude Palm Oil Hydrocracking over SiO2/Zr Assisted with Potassium Hydrogen Phthalate

H Hasanudin, WR Asri, A Mara, M Al Muttaqii… - ACS …, 2023 - ACS Publications
In this study, the catalytic activity of bifunctional SiO2/Zr catalysts prepared by template and
chelate methods using potassium hydrogen phthalate (KHF) for crude palm oil (CPO) …

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

QU Putri, H Hasanudin, WR Asri, A Mara… - Reaction Kinetics …, 2023 - Springer
A combination of nickel-silica and nickel phosphate is hypothesized to provide a synergistic
effect on catalytic processes of LA production from glucose. This research aims to produce …

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

WR Asri, H Hasanudin, K Wijaya - Silicon, 2024 - Springer
In the present paper, the effect of potassium hydrogen phthalate (KHF) and
ethylenediaminetetraacetic acid (EDTA) as new templating agents on the features and …