Results 61 to 70 of about 76,034 (306)

Highly Basic Solid Catalyst Obtained by Spray Drying of a NaAlO2 and Boehmite Suspension for the Upgrading of Glycerol to Acetins [PDF]

, 2020
In here, we present the low-cost production of NaAlO2-Al2O3 catalysts, which exhibit high activity in the transesterification of methyl acetate with glycerol to obtain acetins.
Sreerangappa, Ramesh, Makhlouf, Amoura, Damien, Debecker   +2 more
core   +1 more source

Determination of squalene in edible oils by transmethylation and GC analysis

MethodsX, 2019
Squalene is a triterpenoid with medicinal, therapeutic and cosmetic applications. There is interest in identifying novel sources of squalene, creating a need for a rapid and accurate method of squalene determination.
Suzanne M. Budge, Christopher Barry
doaj   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Selective hydrodeoxygenation of α, β-unsaturated carbonyl compounds to alkenes

Nature Communications
Achieving selective hydrodeoxygenation of α, β-unsaturated carbonyl groups to alkenes poses a substantial challenge due to the presence of multiple functional groups.
Tianjiao Wang, Yu Xin, Bingfeng Chen, Bin Zhang, Sen Luan, Minghua Dong, Yuxuan Wu, Xiaomeng Cheng, Ye Liu, Huizhen Liu, Buxing Han   +10 more
doaj   +1 more source

Sustainable Mg-promoted biochar from pomegranate peel for glycerol carbonate synthesis: Response surface methodology optimization

Case Studies in Chemical and Environmental Engineering
Mesoporous Mg-promoted pomegranate peel biochar was developed as a low-cost and sustainable heterogeneous catalyst for glycerol carbonate (GC) synthesis via transesterification of glycerol with dimethyl carbonate (DMC).
Phonsan Saetiao, Jakkrapong Jitjamnong, Napaphat Kongrit   +2 more
doaj   +1 more source

Basic Ionic Liquid as Catalyst in Synthesis of Dimethyl 4-(2-(2,6-Bis(methoxycarbonyl)pyridine-4-yl)vinyl)pyridine-2,6-dicarboxylate

Journal of Chemistry, 2018
In the lanthanide complexes with some organic ligands, the use of pyridine-2,6-dicarboxylic acid derivatives as sensitizers was better than using others. In this paper, dimethyl 4-(2-(2,6-bis(methoxycarbonyl)pyridine-4-yl)vinyl)pyridine-2,6-dicarboxylate
Xiaobing Liu, Yulin Hu, Wei Fu
doaj   +1 more source

Toward Fast Proton Shuttling in Acidic Oxygen Evolution Reaction

Advanced Functional Materials, EarlyView.
This review establishes proton transfer dynamics as a descriptor governing acidic OER activity, moving beyond the kinetic constraints derived from the proton coupled electron transfer. We discuss how deprotonation governs classical mechanisms, including adsorbate evolution mechanism (AEM), lattice oxygen mechanism (LOM) and oxide path mechanism (OPM ...
Ashish Gaur, Jaeyeong Kim, Sungwook Mhin, HyukSu Han   +3 more
wiley   +1 more source

Carbidization and size effects of unsupported nanosized iron in the low temperature Fischer-Tropsch process [PDF]

, 2012
Includes abstract.Includes bibliographical references.In the process of developing the most efficient production of fuels from coal or natural gas, there have been major advances in the development of the catalysts used.
Amod, Muhammad Ali
core  

Transformylating amine with DMF to formamide over CeO2 catalyst [PDF]

, 2014
We here report a new protocol for the formylation of various amines, primary or secondary, aromatic or alkyl, cyclic or linear, mono-or di-amine, with dimethylformamide (DMF) as the formylation reagent to obtain the corresponding formamides in good to ...
Xu, Jie, Zhang, Jian, Zhang, Chaofeng, Wang, Yehong, 王峰, 徐杰, Li, Mingrun, Wang, Feng   +7 more
core   +1 more source

Is It Real Type‐II or S‐Scheme? A Three‐Phase Diagnostic Protocol for Identifying Potentially Mislabeled Heterojunction Photocatalysts

Advanced Functional Materials, EarlyView.
Diagnostic analysis via the heterojunction validation funnel. The funnel illustrates the hierarchical stratification of 30 reported Type‐II systems based on the three‐phase, seven‐step diagnostic framework. Complete validation through all phases is achieved by only 3.3% of systems, while 96.7% lack full mechanistic validation, revealing a pervasive ...
Ki‐Hyun Kim
wiley   +1 more source