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Updated: Jul 4, 2025

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
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Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

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单原子催化剂支持二维四边形过渡金属化物,用于和氧的进化

Yumeng Cheng1, Jia Zhou1

  • 1State Key Laboratory of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China.

iScience
|January 31, 2024
PubMed
概括

在二维过渡金属化物上的单原子催化剂显示出对清洁能源的希望. 与基准相比,一些新型催化剂表现出优越的氧气演变和演变反应性能.

关键词:
电化学 电化学 电化学能量材料是能源材料.接口科学 接口科学

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Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
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Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
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Unlike the easy catalytic hydrogenation of an alkene double bond, hydrogenation of a benzene double bond under similar reaction conditions does not take place easily. For example, in the reduction of stilbene, the benzene ring remains unaffected while the alkene bond gets reduced. Hydrogenation of an alkene double bond is exothermic and a favorable process. In contrast, to hydrogenate the first unsaturated bond of benzene, an energy input is needed; that is, the process is endothermic. This is...
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