Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 57, Issue 31, Pages 9684-9688Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201803873
Keywords
CO2 reduction; electrochemistry; porous organic cages; porphyrins; supramolecular chemistry
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Funding
- U.S. Department of Energy/LBNL [101528-002]
- Institute for Basic Science (IBS) in Rep. of Korea [IBS-R007-D1]
- National Science Foundation
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A porous organic cage composed of six iron tetraphenylporphyrins was used as a supramolecular catalyst for electrochemical CO2-to-CO conversion. This strategy enhances active site exposure and substrate diffusion relative to the monomeric catalyst, resulting in CO generation with near-quantitative Faradaic efficiency in pH7.3 water, with activities reaching 55250 turnovers. These results provide a starting point for the design of supramolecular catalysts that can exploit the properties of the surrounding matrix yet retain the tunability of the original molecular unit.
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