Results 131 to 140 of about 2,241,134 (405)

Macrocyclic cyanocobalamin (vitamin B12) as a homogeneous electrocatalyst for water oxidation under neutral conditions

, 2020
Highly water-soluble cyanocobalamin (also known as vitamin B-12) is the most structurally macrocyclic complex comprising cobalt in the center of a corrin ring.
Ahmad, Nazir, Shahadat, Hossain M, Verpoort, Francis, Younus, Hussein A, Zhang, Shiguo, Zhuiykov, Serge   +5 more
core   +1 more source

Preparation of Heterogeneous Catalysts

Platinum Metals Review, 1979
Over three hundred participants met in Louvain-la-Neuve, Belgium, at the beginning of September 1978 to attend a Second International Symposium, sponsored by the International Union of Pure and Applied Chemistry and the Division de Catalyse of the Société Chimique de Belgique, to discuss the scientific bases for the preparation of heterogeneous ...
openaire   +1 more source

Parametric Study on the Transesterification Reaction by Using CaO/Silica Catalyst

Chemical Engineering Transactions, 2017
Recently, the application of heterogeneous catalyst has attracted considerable interest in biodiesel production compared to homogenous catalyst because of its reusability in successive reactions runs and easier to separate from the reaction mixture. Thus,
N.S. Lani, N. Ngadi, M.R. Taib
doaj   +1 more source

Carbon Shell‐Encapsulated PtFe Catalysts in High Temperature Polymer Electrolyte Membrane Fuel Cells: Balancing Molecular Sieving and Diffusion for Enhanced Reactant Access

Advanced Functional Materials, EarlyView.
Scanning electrochemical microscopy reveals reactant diffusion through porous carbon shells to PtFe cores, while the carbon‐encapsulated PtFe enables high‐performance HT‐PEMFC operation by sieving phosphate ions that induce catalyst poisoning. ABSTRACT High‐temperature polymer electrolyte membrane fuel cells (HT‐PEMFCs) operating at 160°C on phosphoric
Myeong‐Geun Kim, Sourabh S. Chougule, Suji Lee, Young Sang Park, Jihyun Choi, Katie Heeyum Lim, Albert S. Lee, Hyun S. Park, Namgee Jung, Sung Jong Yoo   +9 more
wiley   +1 more source

Development of new methods for the synthesis of pharmacologically active compounds. Synthesis of new immobilized homo- and heterogeneous catalysts for the chemoselective oxidation of alcohols [PDF]

, 2008
Alexandru Gheorghe
openalex   +1 more source

Intensification of biodiesel production from soybean oil and waste cooking oil in the presence of heterogeneous catalyst using high speed homogenizer.

Ultrasonics sonochemistry, 2017
In the present work, high speed homogenizer has been used for the intensification of biodiesel synthesis from soybean oil and waste cooking oil (WCO) used as a sustainable feedstock.
Saurabh M. Joshi, P. Gogate, Paulo F. Moreira, R. Giudici   +3 more
semanticscholar   +1 more source

Microwave Assisted Expeditious and Green Cu(II)-Clay Catalyzed Domino One-Pot Three Component Synthesis of 2H-indazoles

Bulletin of Chemical Reaction Engineering & Catalysis, 2018
A simple and efficient synthesis of 2H-indazoles is achieved from 2-primary amines, bromobenzaldehydes and sodium azide through domino condensation, C–N and N–N bond formations, catalyzed by a heterogeneous Cu(II)-Clay catalyst.
Bashir Ahmad Dar, Syed Wasim Safvi, Masood Ahmad Rizvi   +2 more
doaj   +1 more source

Residual‐Lithium‐to‐LiF Conversion Enables a LiF–Fluorinated Carbon Interphase for Reconstruction‐Resistant Ni‐Rich Cathodes

Advanced Functional Materials, EarlyView.
A fluorine‐rich acrylate monomer (PFHEA) was solvent‐free applied to NCM90 and thermally decomposed under Ar to convert residual lithium into LiF and form a pre‐built LiF/fluorinated amorphous carbon (LiF/FC) interphase. The LiF/FC layer suppresses NiO rock‐salt reconstruction and microcrack propagation, lowers interfacial resistance, and improves Li ...
Pangyu Kim, Juyeon Han, Junhyeok Kim, Younghoon Kim, Eunha Seo, Dain Kim, Jeeyoung Yoo   +6 more
wiley   +1 more source

Nanoparticle Shape Dictates Catalytic Performance in Selective Hydrogenation of Butadiene Over Au‐Pd Core‐Shell Nanoparticles

Advanced Functional Materials, EarlyView.
Controlling the exposed crystal facet of shape‐controlled Au‐Pd core‐shell catalysts though colloidal synthesis enhances their catalytic performance in the industrially relevant selective hydrogenation of butadiene. ABSTRACT Selective hydrogenation of butadiene is a critical step in purification of alkene feedstocks for polymer production and is ...
Marta Perxés Perich, Jan‐Willem Lankman, Petra E. de Jongh, Jessi E. S. van der Hoeven   +3 more
wiley   +1 more source

The Ni,Cd Heteroatoms‐Initiated Synergistic Tuning of Electron Configuration in Fe2VO4 Nanosheets Electrocatalysts to Profoundly Stabilize Alkaline Seawater Electrolysis

Advanced Functional Materials, EarlyView.
A Ni,Cd‐codoped Fe2VO4/NF bifunctional electrocatalyst is rationally designed for efficient seawater electrolysis. Synergistic effect modulates electron configuration, optimizes intermediates adsorption, stabilizes high‐valence Fe/V sites, and repels chloride ions to suppress corrosion and side reactions, thus contributing to performance improvement of
Weiguo Huang, Bin Fang, Tao Meng, Xiaodong Chen, Ya Chen, Xin Gao, Fei Liang, Hongchao Sun, Jiangmin Zou, Chao Yuan, Yuanyuan Shao, Peiyi Ji, Yangang Wang, Lifeng Cui, Guoxiu Wang, Duu‐Jong Lee   +15 more
wiley   +1 more source