Results 291 to 300 of about 1,670,157 (352)

Homogeneous catalysts to solid catalysts

Current Opinion in Solid State and Materials Science, 1996
Abstract Recent advances have been made in the transformation of homogeneous to solid catalysts. They include the use of metal complexes immobilized on organic and inorganic supports, solid acids and bases, redox molecular sieves as solid catalysts for liquid phase oxidations, zeolite-encapsulated metal complexes and supported liquid phase catalysts.
openaire   +1 more source

Ultrahigh-Loading Zinc Single-Atom Catalyst for Highly Efficient Oxygen Reduction in Both Acidic and Alkaline Media.

Angewandte Chemie, 2019
Atomically dispersed Zn-N-C nanomaterials are promising platinum-free catalysts for the oxygen reduction reaction (ORR). However, the fabrication of Zn-N-C catalysts with a high Zn loading remains a formidable challenge owing to the high volatility of ...
Jia Li, Siguo Chen, Na Yang, Mingming Deng, S. Ibraheem, Jianghai Deng, Jing Li, Li Li, Zidong Wei   +8 more
semanticscholar   +1 more source

Highly Efficient and Selective Generation of Ammonia and Hydrogen on a Graphdiyne-Based Catalyst.

Journal of the American Chemical Society, 2019
The emergence of zerovalent atom catalysts has been highly attractive for catalytic science. For many years, scientists have explored the stability of zerovalent atom catalysts and demonstrated their unique properties. Here, we describe an atom catalyst (
Lan Hui, Yurui Xue, Huidi Yu, Yuxin Liu, Yan Fang, Chengyu Xing, Bolong Huang, Yuliang Li   +7 more
semanticscholar   +1 more source

Metal-Free Single Atom Catalyst for N2 Fixation Driven by Visible Light.

Journal of the American Chemical Society, 2018
Solar nitrogen (N2) fixation is the most attractive way for the sustainable production of ammonia (NH3), but the development of a highly active, long-term stable and low-cost catalyst remains a great challenge.
Chongyi Ling, Xianghong Niu, Qiang Li, A. Du, Jinlan Wang   +4 more
semanticscholar   +1 more source

Electrochemical Ammonia Synthesis via Nitrogen Reduction Reaction on a MoS2 Catalyst: Theoretical and Experimental Studies

Advances in Materials, 2018
The discovery of stable and noble‐metal‐free catalysts toward efficient electrochemical reduction of nitrogen (N2) to ammonia (NH3) is highly desired and significantly critical for the earth nitrogen cycle.
Ling Zhang, Xuqiang Ji, Xiang Ren, Yongjun Ma, Xifeng Shi, Ziqi Tian, Abdullah M. Asiri, Liang Chen, B. Tang, Xuping Sun   +9 more
semanticscholar   +1 more source

Atomically dispersed metal-nitrogen-carbon catalysts for fuel cells: advances in catalyst design, electrode performance, and durability improvement.

Chemical Society Reviews, 2020
The urgent need to address the high-cost issue of proton-exchange membrane fuel cell (PEMFC) technologies, particularly for transportation applications, drives the development of simultaneously highly active and durable platinum group metal-free (PGM ...
Yanghua He, Shengwen Liu, Cameron Priest, Qiurong Shi, Gang Wu   +4 more
semanticscholar   +1 more source

Microkinetic Modeling: A Tool for Rational Catalyst Design.

Chemical Reviews, 2020
The design of heterogeneous catalysts relies on understanding the fundamental surface kinetics that controls catalyst performance, and microkinetic modeling is a tool that can help the researcher in streamlining the process of catalyst design ...
A. H. Motagamwala, J. Dumesic
semanticscholar   +1 more source

Unifying views on catalyst deactivation

Nature Catalysis, 2022
A. Martín, S. Mitchell, C. Mondelli, Shibashish D. Jaydev, J. Pérez–Ramírez   +4 more
semanticscholar   +1 more source

Induced activation of the commercial Cu/ZnO/Al2O3 catalyst for the steam reforming of methanol

Nature Catalysis, 2022
Didi Li, Fang Xu, Xuan Tang, Sheng Dai, Tiancheng Pu, Xianglin Liu, P. Tian, Fuzhen Xuan, Zhi Xu, I. Wachs, Minghui Zhu   +10 more
semanticscholar   +1 more source

CATALYSTS

2011
A solid particulate catalyst free from an external carrier comprising (i) a complex of Formula (I), wherein M is zirconium or hafnium; each X is a sigma ligand; L is a divalent bridge selected from -R'2C-, -R'2C-CR'2-, -R'2Si-, -R'2Si-SiR2-, -R'2Ge-, wherein each R' is independently a hydrogen atom, Cl-C20-alkyl, tri(C1-C20-alkyl)silyl, C6-C20-aryl, C7-
BOREALIS AG, RESCONI LUIGI, CASTRO PASCAL, HUHTANEN LAURI   +3 more
openaire   +3 more sources