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Updated: Jul 5, 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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基于碳的空心材料用于电催化和热催化CO2转换

Kaining Li1, Yasutaka Kuwahara1,2, Hiromi Yamashita1,2

  • 1Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University 2-1 Yamada-oka Osaka 565-0871 Japan kuwahara@mat.eng.osaka-u.ac.jp yamashita@mat.eng.osaka-u.ac.jp.

Chemical science
|January 19, 2024
PubMed
概括

空心结构碳 (HSC) 材料为开发先进催化剂提供了一个多功能平台. 本综述详细介绍了HSC的设计和功能,以实现高效的电催化和热催化二氧化碳 (CO2) 转化,从而推进碳中和目标.

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Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
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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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Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current...
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