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Review
. 2021 Sep 13;60(38):20627-20648.
doi: 10.1002/anie.202101818. Epub 2021 May 5.

Advances and Challenges for the Electrochemical Reduction of CO2 to CO: From Fundamentals to Industrialization

Song Jin  1 , Zhimeng Hao  1 , Kai Zhang  1 , Zhenhua Yan  1 , Jun Chen  1
Affiliations
Review

Advances and Challenges for the Electrochemical Reduction of CO2 to CO: From Fundamentals to Industrialization

Song Jin et al. Angew Chem Int Ed Engl. .

Abstract

The electrochemical carbon dioxide reduction reaction (CO2 RR) provides an attractive approach to convert renewable electricity into fuels and feedstocks in the form of chemical bonds. Among the different CO2 RR pathways, the conversion of CO2 into CO is considered one of the most promising candidate reactions because of its high technological and economic feasibility. Integrating catalyst and electrolyte design with an understanding of the catalytic mechanism will yield scientific insights and promote this technology towards industrial implementation. Herein, we give an overview of recent advances and challenges for the selective conversion of CO2 into CO. Multidimensional catalyst and electrolyte engineering for the CO2 RR are also summarized. Furthermore, recent studies on the large-scale production of CO are highlighted to facilitate industrialization of the electrochemical reduction of CO2 . To conclude, the remaining technological challenges and future directions for the industrial application of the CO2 RR to generate CO are highlighted.

Keywords: carbon dioxide reduction reaction; carbon monoxide; catalyst design; electrochemistry; electrolysis.

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