Research Progress of Electrochemical Reduction of CO2 on Cu-Zn Bimetallic Catalyst
Electrochemical reduction of carbon dioxide(CO2 ER)not only helps to generate high value-added chemicals by resource utilization of CO2,but also promotes and achieves green,low-carbon and sustainable development.In the field of CO2 ER,compared with single metal catalysts,the bimetallic catalysts,especially Cu-Zn bimetallic catalysts,have attracted much attention due to their economical and environment-friendly characteristics,rich active sites,and adjustable electronic structure.These advantages make them play a significant role in the formation of multi-carbon(C2+)products in the process of C—C coupling.This paper reviews the research progress of Cu-Zn bimetallic catalysts in CO2 ER,summarizes the different factors affecting the electron transfer or electron-proton coupling mechanism in the reduction process,including the interface synergistic effects,surface adsorption and desorption,and interface defects,and further reveals the reaction mechanism for the generation of different reduction products.In addition,classification and discussion are conducted on the performance of Cu-Zn bimetallic catalysts in the process of CO2ER to specific products;the study focuses on exploring the influence of the preparation method of catalysts and the types of electrolyte cell on catalyst performance.Finally,the challenges faced by catalysts in the field of CO2ER regarding their activity and stability,and product selectivity are also prospected.
万方数据
