Jiang Minghang, Wang Huaizhu, Zhu Mengfei, Luo Xiaojun, He Yi, Wang Mengjun, Wu Caijun, Zhang Liyun, Li Xiao, Liao Xuemei, Jiang Zhenju, Jin Zhong
Department of Chemistry, School of Science, Xihua University, Chengdu, Sichuan 610039, China.
State Key Laboratory of Coordination Chemistry, MOE Key Laboratory of Mesoscopic Chemistry, MOE Key Laboratory of High Performance Polymer Materials and Technology, Jiangsu Key Laboratory of Advanced Organic Materials, Tianchang New Materials and Energy Technology Research Center, Institute of Green Chemistry and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China.
Chem Soc Rev. 2024 May 20;53(10):5149-5189. doi: 10.1039/d3cs00857f.
The electrochemical reduction of CO into value-added chemicals has been explored as a promising solution to realize carbon neutrality and inhibit global warming. This involves utilizing the electrochemical CO reduction reaction (CORR) to produce a variety of single-carbon (C) and multi-carbon (C) products. Additionally, the electrolyte solution in the CORR system can be enriched with nitrogen sources (such as NO, NO, N, or NO) to enable the synthesis of organonitrogen compounds C-N coupling reactions. However, the electrochemical conversion of CO into valuable chemicals still faces challenges in terms of low product yield, poor faradaic efficiency (FE), and unclear understanding of the reaction mechanism. This review summarizes the promising strategies aimed at achieving selective production of diverse carbon-containing products, including CO, formate, hydrocarbons, alcohols, and organonitrogen compounds. These approaches involve the rational design of electrocatalysts and the construction of coupled electrocatalytic reaction systems. Moreover, this review presents the underlying reaction mechanisms, identifies the existing challenges, and highlights the prospects of the electrosynthesis processes. The aim is to offer valuable insights and guidance for future research on the electrocatalytic conversion of CO into carbon-containing products of enhanced value-added potential.
将CO电化学还原为高附加值化学品已被探索为实现碳中和和抑制全球变暖的一种有前景的解决方案。这涉及利用电化学CO还原反应（CORR）来生产各种单碳（C）和多碳（C）产物。此外，CORR系统中的电解质溶液可以富含氮源（如NO、NO、N或NO），以实现有机氮化合物的合成——C-N偶联反应。然而，将CO电化学转化为有价值的化学品在产品产率低、法拉第效率（FE）差以及对反应机理理解不清楚方面仍然面临挑战。本综述总结了旨在实现多种含碳产物（包括CO、甲酸盐、碳氢化合物、醇类和有机氮化合物）选择性生产的有前景的策略。这些方法包括电催化剂的合理设计和耦合电催化反应系统的构建。此外，本综述介绍了潜在的反应机理，确定了现有挑战，并突出了电合成过程的前景。目的是为未来将CO电催化转化为具有更高附加值潜力的含碳产物的研究提供有价值的见解和指导。
