Results 21 to 30 of about 44,789 (219)

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

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

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

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

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
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Understanding a Heterogeneous Catalyst in Action

CHIMIA, 2009
The role of catalysis in the clean production of energy and chemicals will become increasingly important and new catalysts must be developed.
Jeroen A. van Bokhoven, Christiane Kartusch, Shreekant Satav   +2 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

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

A composite heterogeneous catalyst C-Py-Sn-Zn for selective electrochemical reduction of CO2 to methanol

Electrochemistry Communications, 2020
By using electrochemical oxidation and electrodeposition methods, 4-aminopyridine (Py) and bimetallic Sn-Zn were successfully immobilized on the surface of pure carbon paper to construct a composite heterogeneous catalyst (C-Py-Sn-Zn), which could ...
Wenjing Huang, Gaoqing Yuan
doaj   +1 more source