Results 21 to 30 of about 41,757 (266)

Graphene oxide nanosheet supported molybdenum complex: An efficient and recoverable catalyst for epoxidation of alkenes

Applied Surface Science Advances, 2021
A novel heterogeneous catalyst was prepared by chemical attachment of oxo-molybdenum on functionalized GO as stable support (Mo(PDA–GO). This catalyst was characterized by using thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR ...
Ali Zarnegaryan, Shiva Kargar
doaj   +1 more source

Karanja seed shell ash: A sustainable green heterogeneous catalyst for biodiesel production

Results in Engineering, 2023
In the present study, the ash from discarded Karanja seed shell (KSS), obtained after burning dried seed shells has been identified as one of the most cost-effective and efficient green heterogeneous catalysts for biodiesel production.
Pooja Prajapati, Sakshi Shrivastava, Varsha Sharma, Priyanka Srivastava, Virendra Shankhwar, Arun Sharma, S.K. Srivastava, D.D. Agarwal   +7 more
doaj   +1 more source

Oxidative desulfurization of diesel fuel oil using supported Fenton catalysts and assisted with ultrasonic energy

Petroleum Science, 2019
An ultrasound-assisted heterogeneous catalytic oxidation process was applied to eliminate sulfur from commercial diesel fuel oil. The studied variables were catalyst concentration, type of catalyst (homogeneous or heterogeneous), oxidizing agent ...
Roberto Flores, Arturo Rodas, Raquel Gasperin   +2 more
doaj   +1 more source

Starch-derived Solid Acid Catalyst for Biodiesel Production: A Mini Review

Chemical Engineering Transactions, 2021
An international agreement to combat the global climate change issue - Paris Climate Agreement which involved participation of 190 parties as of January 2021, showed the world’s concern on the global climate change issue.
Wan Ting Tan, Mazura Jusoh, Zaki Yamani Zakaria   +2 more
doaj   +1 more source

Transesterification via Direct-Ultrasonic Irradiation of Rubber Seed Oil with Waste Materials Based Heterogeneous Catalyst

Chemical Engineering Transactions, 2015
Present process of transesterification faces various challenges. The most challenging is to obtain high conversion rate when using high free fatty acid (FFA) feedstock.
M.M. Amin, S. Yusup
doaj   +1 more source

Pd on thermo-responsive composite of silica-coated carbon nanotube and 1-vinyl-3-butylimidazolium-based ionic liquid copolymers as an efficient catalyst for hydrogenation of nitro compounds

Scientific Reports, 2022
In this work, an ionic liquid-containing thermo-responsive heterogeneous catalyst with utility for promoting hydrogenation of nitro-compounds in aqueous media is developed.
Samahe Sadjadi, Neda Abedian-Dehaghani, Majid M. Heravi   +2 more
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Polymer-supported chiral palladium-based complexes as efficient heterogeneous catalysts for asymmetric reductive Heck reaction

Green Synthesis and Catalysis
Heterogeneous asymmetric catalysis is an important strategy for the industrial production of chiral compounds. Herein, we reported a polymer-bound Xu-Phos-derived palladium catalyst that shows good performance in heterogeneous asymmetric reductive Heck ...
Hui Zhang, Bing Xu, Liejin Zhou, Zhan-Ming Zhang, Junliang Zhang   +4 more
doaj   +1 more source

Nanostructured Heterogeneous Catalysts for Bioorthogonal Reactions

Angewandte Chemie, 2023
AbstractBioorthogonal chemistry has inspired a new subarea of chemistry providing a powerful tool to perform novel biocompatible chemospecific reactions in living systems. Following the premise that they do not interfere with biological functions, bioorthogonal reactions are increasingly applied in biomedical research, particularly with respect to ...
Ana Sousa‐Castillo, Andrea Mariño‐López, Begoña Puértolas, Miguel A. Correa‐Duarte   +3 more
openaire   +3 more sources

Process Parameters Optimization of Potential SO42-/ZnO Acid Catalyst for Heterogeneous Transesterification of Vegetable Oil to Biodiesel

Bulletin of Chemical Reaction Engineering & Catalysis, 2012
Among the possible renewable energy resources, diesel fuels derived from triglycerides of vegetable oils and animal fats have shown potential as substitutes for petroleum-based diesel fuels.
Istadi Istadi, Didi D. Anggoro, Luqman Buchori, Inshani Utami, Roikhatus Solikhah   +4 more
doaj   +1 more source

A sustainable avenue for the synthesis of propargylamines and benzofurans using a Cu-functionalized MIL-101(Cr) as a reusable heterogeneous catalyst

Scientific Reports, 2023
A heterogeneous copper-catalyzed A3 coupling reaction of aldehydes, amines, and alkynes for the synthesis of propargylamines and benzofurans has been developed.
Fillip Kumar Sarkar, Lenida Kyndiah, Sushmita Gajurel, Rajib Sarkar, Samaresh Jana, Amarta Kumar Pal   +5 more
doaj   +1 more source