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Updated: Jun 6, 2025

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
10:57

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

Published on: April 10, 2018

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在选择性CO2电还原为C2H4的法索氨共价有机框架中微妙调整催化井效应

Yi-Lu Yang1, Qi Li1, Ping Liu2

  • 1School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China.

Advanced materials (Deerfield Beach, Fla.)
|November 24, 2024
PubMed
概括

研究人员开发了富含酸的共价有机框架 (COFs),用于高效的电催化二氧化碳减排. 这些材料精确地控制了催化井,提高了对乙烯等有价值的C2+产品的选择性,超过了现有的COF性能.

关键词:
催化井的催化剂是什么?共价-有机框架框架电催化减少二氧化碳的方法乙烯乙烯的使用方法

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Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions10:21

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相关概念视频

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Photochemical Electrocyclic Reactions: Stereochemistry

The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
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Thermal Electrocyclic Reactions: Stereochemistry

The stereochemistry of electrocyclic reactions is strongly influenced by the orbital symmetry of the polyene HOMO. Under thermal conditions, the reaction proceeds via the ground-state HOMO.
Selection Rules: Thermal Activation
Conjugated systems containing an even number of π-electron pairs undergo a conrotatory ring closure. For example, thermal electrocyclization of (2E,4E)-2,4-hexadiene, a conjugated diene containing two π-electron pairs, gives trans-3,4-dimethylcyclobutene.
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