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Perfluorinated Covalent Triazine Framework Derived Hybrids for the Highly Selective Electroconversion of Carbon Dioxide into Methane
Author(s) -
Wang Yuanshuang,
Chen Junxiang,
Wang Genxiang,
Li Yan,
Wen Zhenhai
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201807173
Subject(s) - electrocatalyst , triazine , selectivity , covalent bond , electrochemistry , chemistry , methane , faraday efficiency , density functional theory , fluorine , electrolyte , aqueous solution , carbon dioxide , inorganic chemistry , chemical engineering , electrode , organic chemistry , catalysis , computational chemistry , engineering
Developing cost‐effective electrocatalysts for high‐selectivity CO 2 electroreduction remains challenging. We herein report a perfluorinated covalent triazine framework (CTF) electrocatalyst that displays very high selectivity in the electroreduction of CO 2 to CH 4 with a faradaic efficiency of 99.3 % in aqueous electrolyte. Systematic characterization and electrochemical studies, in combination with density functional theory calculations, demonstrate that the presence of both nitrogen and fluorine in the CTF provides a unique pathway that is inaccessible with the individual components for CO 2 electroreduction.
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