PDMS-coated Cu-BTC composite catalyst and application thereof in electrocatalytic carbon dioxide reduction

The invention belongs to the technical field of carbon dioxide electrochemical reduction, and particularly discloses a PDMS-coated Cu-BTC composite catalyst and application thereof in electrocatalytic carbon dioxide reduction. The PDMS-coated Cu-BTC catalyst which is modified by polydimethylsiloxane and has Cu as an active center is prepared, when the PDMS-coated Cu-BTC catalyst is applied to a carbon dioxide electrochemical reducing agent, high electrocatalytic activity and selectivity on carbon dioxide reduction are achieved, and the Faraday efficiency of a C2H4 product can be remarkably improved. According to the present invention, the FEC < 2 > H4 of the catalyst at-0.8 Vvs.RHE can achieve 65.62%, the PDMS (at) Cu-BTC catalyst achieves the high electrocatalytic activity on CO2RR and the high selectivity on the C2H4 product, and can significantly improve the energy efficiency of CO2 utilization. 本发明属于二氧化碳电化学还原技术领域，具体公开了一种PDMS@Cu-BTC复合催化剂及其在用于电催化二氧化碳还原中的应用。本发明制备了通过聚二甲基硅氧烷改性，具有以Cu为活性中心的PDMS@Cu-BTC的催化剂，其应用于二氧