综述了CO₂电化学还原为乙醇的反应机理及用于该反应的铜基催化剂研究进展，包括Cu单质、Cu-M合金、Cu基氧化物及其衍生物和Cu基复合材料；同时介绍了影响催化性能的主要因素，如催化剂粒径、催化剂形貌、电解液组成等，最后展望了Cu基催化剂在CO₂电化学还原为乙醇领域的研究前景，通过优化电极材料和探究金属与载体相互作用，同时结合理论计算来探明反应机理，将有助于开发更高效的电催化材料。

The reaction mechanism in electrocatalytic reduction of CO₂ to ethanol is reviewed,and the research progress about copper-based catalysts for the reaction are summed up.The catalysts involved include Cu element,Cu-M alloy,Cu based oxides and their derivatives,and Cu based composites.Main factors affecting the catalytic performance of catalyst,such as catalyst particle size,catalyst morphology,electrolyte composition,etc.are introduced.The research prospect about copper-based catalysts in the electrochemical reduction of CO₂ to ethanol is expected.Through optimizing electrode materials and exploring the interaction between metal and carrier,and combining with theoretical calculation to explore the reaction mechanism,it will help to develop more efficient electrocatalysis materials.

牛宏伟(1996-),男,硕士生;廉红蕾(1977-),女,博士,讲师,研究方向为多相催化材料合成及原位光谱表征技术,通讯联系人,hongleilian@zzu.edu.cn。