Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 142, Issue 41, Pages 17384-17392Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.0c05913
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Funding
- EPSRC [EP/I011870]
- Royal Society [IC170327]
- National Natural Science Foundation of China [21733011, 21890761]
- University of Manchester
- Institute of Chemistry, Chinese Academy of Sciences
- EPSRC
- European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme [742401]
- Royal Society Newton International Fellowship
- China Scholarship Council
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Efficient electro-reduction of CO2 over metal-organic framework (MOF) materials is hindered by the poor contact between thermally synthesized MOF particles and the electrode surface, which leads to low Faradaic efficiency for a given product and poor electrochemical stability of the catalyst. We report a MOF-based electrode prepared via electro-synthesis of MFM-300(In) on an indium foil, and its activity for the electrochemical reduction of CO2 is assessed. The resultant MFM-300(In)-e/In electrode shows a 1 order of magnitude improvement in conductivity compared with that for MFM-300(In)/carbon-paper electrodes. MFM-300(In)-e/In exhibits a current density of 46.1 mA cm(-2) at an applied potential of -2.15 V vs Ag/Ag+ for the electro-reduction of CO2 in organic electrolyte, achieving an exceptional Faradaic efficiency of 99.1% for the formation of formic acid. The facile preparation of the MFM-300(In)-e/In electrode, coupled with its excellent electrochemical stability, provides a new pathway to develop efficient electro-catalysts for CO2 reduction.
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