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Updated: Aug 12, 2025

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
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Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Published on: October 5, 2019

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通过太阳能驱动的H2O2生产的一多元件反应将双功能性和化学稳定性集成到共价有机框架中

Prasenjit Das1, Gouri Chakraborty2, Jérôme Roeser1

  • 1Department of Chemistry/Functional Materials, Technische Universität Berlin, 10623 Berlin, Germany.

Journal of the American Chemical Society
|January 25, 2023
PubMed
概括

使用多组分反应合成的化学稳定的共价有机框架 (COF) 显示了增强的光催化过氧化演变. 这些材料为太阳能化学能量转化提供了一个有前途的平台.

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A bond is formed between two atoms by sharing two electrons. When this bond is broken by supplying sufficient energy, either two electrons can be taken up by one atom forming ions by the cleavage called heterolysis, or the two electrons are shared by two atoms, with one each creating radicals by the cleavage called homolysis.
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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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