期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 62, 期 7, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202215687
关键词
CO; CO2 Electrocatalysis; Covalent Organic Framework; Hydrogen Bond; Imidazolium
We present the first example of a charged imidazolium functionalized porphyrin-based covalent organic framework for electrocatalytic CO2 reduction reaction. The free anions of imidazolium ions nearby the active sites can stabilize the key intermediate and inhibit hydrogen evolution reaction. Thus, the charged imidazolium functionalized covalent organic framework exhibits higher activity than the neutral version and follows a trend depending on the anion.
We present the first example of charged imidazolium functionalized porphyrin-based covalent organic framework (Co-iBFBim-COF-X) for electrocatalytic CO2 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-
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