School of Chemistry,Chemical Engineering and Materials,Jining University
College of Materials Science and Engineering,Hunan University

随着全球经济增长,对能源需求不断攀升,进而推动了能源的开发与利用,不可避免导致CO2排放量的持续上升。为有效应对这一环境挑战,电催化CO2还原(CO2RR)技术应运而生,并迅速成为研究热点。该技术不仅可将CO2转换为燃料和化学品,而且有助于实现可再生能源储存。在众多催化剂中,铜基催化剂因其能高效将CO2直接转化为高价值多碳化学品(如乙烯和乙醇)而受到关注。近年来,铜基CO2RR催化剂优化设计进展显著,主要集中在提高催化活性、选择性和稳定性上。重点综述了近年来电催化CO2RR用铜基催化剂的优化设计策略研究进展。从调控催化活性和选择性以及稳定性2方面,分别讨论了晶面工程、合金化处理、铜氧化态调节、催化剂表面功能化和缺陷工程等代表性调控策略的研究进展,探讨了电催化剂的核心参数(组成、微观结构、形貌、尺寸等)对催化剂性能的协同效应。最后对未来电催化CO2RR技术的发展前景进行展望,并分析当前面临的挑战。

With the growth of the global economy, the demand for energy is continuously increasing, which in turn has driven the development and utilization of energy resources. This trend has inevitably led to a steady rise in carbon dioxide (CO2) emissions. To effectivelyaddress this environmental challenge, the technology of electrocatalytic CO2 reduction (CO2RR) has emerged and quickly become a focalpoint in scientific research. This technology not only has the potential to convert CO2 into fuels and chemicals but also contributes to thestorage of renewable energy. Among various catalysts, copper-based catalysts have attracted attention for their ability to efficiently convertCO2 directly into high-value multi-carbon chemicals, such as ethylene and ethanol. In recent years, there have been significant advancements in the optimization and design of copper-based CO2RR catalysts, primarily focusing on enhancing catalytic activity, selectivity, andstability. An overview of the recent progress in the research on optimization strategies for copper-based CO2 RR catalysts was provided.Representative strategies were discussed such as crystal facet engineering, alloying treatments, modulation of copper oxidation states, catalyst surface functionalization, and defect engineering, examining how these approaches influence catalytic performance by tuning core parameters like composition, microstructure, morphology, and size, which collectively exerted a synergistic effect on the catalyst performance. Finally, the future prospects of electrocatalytic CO2RR technology was look forward and the current challenges faced was analyzed.

山东省自然科学基金面上资助项目(ZR2022MB120)

郑逸群,李敦,闵媛媛,等.电催化二氧化碳还原用铜基催化剂设计策略[J].洁净煤技术,2024,30(4):41-57.

ZHENG Yiqun,LI Dun,MIN Yuanyuan,et al.Design strategies for copper-based catalysts in electrochemical reductionof carbon dioxide[J].Clean Coal Technology,2024,30(4):41-57.