CO2电还原制C2+产物选择性影响因素研究进展OA

Electrocatalytic CO2 reduction reaction(CO2RR)provides an effective approach for converting CO2 into high value-added chemicals and fuels.In CO2RR research,precise modulation of the catalyst's composition and structure is crucial for achieving high product selectivity.Cu is currently the most effective active metal component for driving CO2RR toward C2+products.To gain a comprehensive understanding of the factors governing C2+product formation on Cu-based catalysts,studies about CO2RR to C2+products have been comprehensively analyzed and summarized.Starting from the adsorption mechanisms of CO2 on Cu-based catalyst surfaces,the effects of critical parameters such as Cu crystal facets,low-nuclearity Cu atomic clusters,Cu species valence states,and catalyst morphologies on CO2RR performance were thoroughly explored,with emphasis on their roles in regulating C2+products selectivity.Furthermore,current challenges and future research directions for C2+products by CO2RR were outlined,aiming to provide guidance for the rational design of high-efficiency catalysts for CO2RR.