Fan Lei, Xia Chuan, Yang Fangqi, Wang Jun, Wang Haotian, Lu Yingying
State Key Laboratory of Chemical Engineering, Institute of Pharmaceutical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005, USA.
Sci Adv. 2020 Feb 21;6(8):eaay3111. doi: 10.1126/sciadv.aay3111. eCollection 2020 Feb.
In light of environmental concerns and energy transition, electrochemical CO reduction (ECR) to value-added multicarbon (C ) fuels and chemicals, using renewable electricity, presents an elegant long-term solution to close the carbon cycle with added economic benefits as well. However, electrocatalytic C─C coupling in aqueous electrolytes is still an open challenge due to low selectivity, activity, and stability. Design of catalysts and reactors holds the key to addressing those challenges. We summarize recent progress in how to achieve efficient C─C coupling via ECR, with emphasis on strategies in electrocatalysts and electrocatalytic electrode/reactor design, and their corresponding mechanisms. In addition, current bottlenecks and future opportunities for C product generation is discussed. We aim to provide a detailed review of the state-of-the-art C─C coupling strategies to the community for further development and inspiration in both fundamental understanding and technological applications.
鉴于环境问题和能源转型，利用可再生电力将电化学CO还原（ECR）为增值多碳（C）燃料和化学品，是一种优雅的长期解决方案，既能闭合碳循环，又能带来额外的经济效益。然而，由于选择性、活性和稳定性较低，在水性电解质中进行电催化C-C偶联仍然是一个悬而未决的挑战。催化剂和反应器的设计是应对这些挑战的关键。我们总结了如何通过ECR实现高效C-C偶联的最新进展，重点介绍了电催化剂以及电催化电极/反应器设计中的策略及其相应机制。此外，还讨论了目前C产物生成的瓶颈和未来机遇。我们旨在为该领域提供一份关于C-C偶联策略的详细综述，以促进在基础理解和技术应用方面的进一步发展并提供灵感。
