Boosting Electroreduction of CO 2 over Cationic Covalent Organic Frameworks: Hydrogen Bonding Effects of Halogen Ions.

Qiu-Jin Wu,Duan-Hui Si,Qiao Wu,Yu-Liang Dong,Rong Cao,Yuan-Biao Huang

Angewandte Chemie（2023）

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摘要

We present the first example of charged imidazolium functionalized porphyrin-based covalent organic framework (Co-iBFBim-COF-X) for electrocatalytic CO reduction reaction, where the free anions (e.g., F , Cl , Br , and I ) of imidazolium ions nearby the active Co sites can stabilize the key intermediate *COOH and inhibit hydrogen evolution reaction. Thus, Co-iBFBim-COF-X exhibits higher activity than the neutral Co-BFBim-COF, following the trend of F 更多

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关键词

CO,CO2 Electrocatalysis,Covalent Organic Framework,Hydrogen Bond,Imidazolium

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