Liu Li, Wu Xueting, Wang Fei, Zhang Lingling, Wang Xiao, Song Shuyan, Zhang Hongjie
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5265, Renmin Street, Chaoyang District, Changchun, Jilin, 130022, P.R. China.
University of Science and Technology of China, 96, Jinzhai Road, Baohe District, Hefei, Anhui, 230026, P. R. China.
Chemistry. 2023 Sep 1;29(49):e202300583. doi: 10.1002/chem.202300583. Epub 2023 Aug 2.
Electrocatalytic CO reduction reaction (CO RR) is a promising and green approach for reducing atmospheric CO concentration and achieving high-valued conversion of CO under the carbon-neutral policy. In CO RR, the dual-site metal catalysts (DSMCs) have received wide attention for their ingenious design strategies, abundant active sites, and excellent catalytic performance attributed to the synergistic effect between dual-site in terms of activity, selectivity and stability, which plays a key role in catalytic reactions. This review provides a systematic summary and detailed classification of DSMCs for CO RR, describes the mechanism of synergistic effects in catalytic reactions, and also introduces in situ characterization techniques commonly used in CO RR. Finally, the main challenges and prospects of dual-site metal catalysts and even multi-site catalysts for CO recycling are analyzed. It is believed that based on the understanding of bimetallic site catalysts and synergistic effects in CO RR, well-designed high-performance, low-cost electrocatalysts are promising for achieving CO conversion, electrochemical energy conversion and storage in the future.
电催化CO还原反应（CO RR）是一种在碳中性政策下降低大气中CO浓度并实现CO高附加值转化的有前景的绿色方法。在CO RR中，双位点金属催化剂（DSMCs）因其巧妙的设计策略、丰富的活性位点以及双位点之间在活性、选择性和稳定性方面的协同效应所带来的优异催化性能而受到广泛关注，这种协同效应在催化反应中起着关键作用。本文综述对用于CO RR的DSMCs进行了系统总结和详细分类，描述了催化反应中协同效应的机理，还介绍了CO RR中常用的原位表征技术。最后，分析了双位点金属催化剂乃至多位点催化剂在CO循环利用方面的主要挑战和前景。相信基于对双金属位点催化剂及其在CO RR中协同效应的理解，精心设计的高性能、低成本电催化剂有望在未来实现CO转化、电化学能量转换与存储。
