4.6 Article

Highly selective metal-organic framework-based electrocatalyst for the electrochemical reduction of CO2 to CO

期刊

MATERIALS RESEARCH BULLETIN
卷 138, 期 -, 页码 -

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2021.111228

关键词

Metal-organic framework; Electrocatalyst; Electrochemical reduction CO2; CO Selectivity; Computational simulation

资金

  1. National Research Foundation of Korea (NRF) - Korea government (MSIT) [2020R1A4A4079954]

向作者/读者索取更多资源

Cu-MOF74 exhibited superior electrocatalytic properties compared to Zn-MOF74, with larger surface area, higher CO selectivity, and lower overpotential. Computational simulation showed that the lower activation energy of Cu-MOF74 in the rate-determining step resulted in its better electrocatalytic properties.
Cu- and Zn-MOF74 were synthesized using the nitrate salts of Cu and Zn combined with 2,5-dihydroxyterephtalic acid (H4DOBBDC) by a simple solvothermal method. The as-prepared Cu- and Zn-MOF74 were used as electrocatalysts for the electrochemical reduction CO2 using a H-type cell in a 0.1 M of KHCO3 aqueous solution. The Cu-MOF74 exhibited a larger surface area, higher CO selectivity, smaller Tafel slope, and lower overpotential than those of Zn-MOF74. A computational simulation showed that the lower activation energy of Cu-MOF74 than that of Zn-MOF74 in the rate-determining step resulted in better electrocatalytic properties.

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