Advances in CO 2 electroreduction to ethylene over Cu-based catalysts in membrane electrode assembly

作者：Wanyu Zhou, Xueyan Li, Xiaoyue Tu, Hongyan Zhao, Qinglin Li, Zhicheng Liu, Deshuai Sun, Xiangjian Liu, Minghua Huang, Jiawei Zhu, Heqing Jiang · 发表于：Nano Research · 年份：2025 · DOI：10.26599/nr.2025.94907613 · 被引用次数：9 · 研究领域：CO2 Reduction Techniques and Catalysts、Catalysts for Methane Reforming、Molecular Junctions and Nanostructures

The electrochemical CO 2 reduction reaction (CO 2 RR) is a promising approach for converting CO 2 into valuable chemicals and promoting carbon cycling. Among the products of CO 2 RR, ethylene (C 2 H 4 ), as a crucial chemical feedstock, holds significant market demand and economic value. The design of an electrolyte-free cathode in membrane electrode assemblies (MEAs) can effectively mitigate mass transfer limitations, reduce ohmic losses, and enhance interfacial efficiency, thereby significantly improving current density and product selectivity. The integration of copper-based catalysts into MEAs is considered a promising strategy for the industrial-scale production of C 2 H 4 via CO 2 RR. However, comprehensive reviews on the application of copper-based catalysts in MEAs for CO 2 RR to C 2 H 4 remain limited, particularly regarding systematic analyses of catalyst design strategies, optimization of MEA components and operating conditions, and MEA device configurations. This review systematically summarizes the latest research progress on copper-based catalysts in MEAs for CO 2 RR to C 2 H 4 . Firstly, the reaction mechanism of CO 2 RR to C 2 H 4 was summarized and the role of intermediate adsorption regulation was highlighted in MEA systems. Secondly, strategies applied to optimize ethylene production using copper-based catalysts in MEAs were also summarized accordingly. Next, the influence of components, operational conditions, and device design for MEA was discussed. ...