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

K Wijaya, ML Lammaduma Malau, M Utami, S Mulijani… - Catalysts, 2021 - mdpi.com
Sulfated silica (SO4/SiO2) and nickel impregnated sulfated silica (Ni-SO4/SiO2) catalysts
have been successfully carried out for the conversion of ethanol into diethyl ether (DEE) as a …

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

K Wijaya, A Nadia, A Dinana, AF Pratiwi, AD Tikoalu… - Catalysts, 2021 - mdpi.com
The synthesis of a sulfated silica catalyst and its modification with Ni and/or Mo metal, along
with its application for the hydrocracking of fresh and waste frying oil into biogasoline, were …

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

K Wijaya, M Utami, AK Damayanti, I Tahir, AD Tikoalu… - Fuel, 2022 - Elsevier
The synthesis of a sulfated zirconia catalyst and its modification with Ni metal was carried
out and applied in the hydrocracking of waste cooking oil into biogasoline. The SO 4/ZrO 2 …

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

A Nadia, K Wijaya, II Falah, S Sudiono… - Waste and Biomass …, 2022 - Springer
The development of hierarchical porous material as support catalysts has increased during
the last decade. The present work is focused on preparing monodisperse hierarchical silica …

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) …

Thioether-Containing Zirconium (Alkoxy) Siloxanes: Synthesis and Study of Dielectric and Mechanical Properties of Silica-Filled Polydimethylsiloxane Compositions …

AN Tarasenkov, MS Parshina, GP Goncharuk… - Polymers, 2023 - mdpi.com
A number of thioether-containing zirconium siloxanes, differing in their composition and
metal atom shielding degree with a siloxy substituent, were synthesized and characterized …

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

RH Agharadatu, K Wijaya, Prastyo, Wangsa, L Hauli… - Silicon, 2024 - Springer
The synthesis and application of mesoporous NiMo/silica as a catalyst in the hydrocracking
of used cooking oil has been studied. Mesoporous silica was synthesized from TEOS and …

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

M Utami, P Setiawan, II Falah, M Shidiq… - Sustainable Energy …, 2022 - Elsevier
The present study describes the production of biodiesel from castor plant (Riccinus
communis) using heterogeneous base catalyst of NaOH dispersed on bentonite. The …

Facile Synthesis of Mesoporous Silica at Room Temperature for CO2 Adsorption

M Kang, J Lee, MK Kim, M Byun, JY Bae - Micromachines, 2022 - mdpi.com
Although mesoporous silica materials have been widely investigated for many applications,
most silica materials are made by calcination processes. We successfully developed a …