Issue 44, 2020

Formation of C–C bonds during electrocatalytic CO2 reduction on non-copper electrodes

Abstract

The formation of C–C bonds between the carbonaceous intermediates generated during the electrocatalytic CO2 reduction reaction (CO2RR) is the key in producing high-value multi-carbon products. At present, Cu-based electrocatalysts are the most promising for this purpose. However, critical challenges concerning their selectivity, stability and energy efficiency remain. Recently, some non-Cu-based electrocatalysts have been reported to exhibit excellent multi-carbon product selectivity at low overpotentials, and some are even able to produce multi-carbon molecules that were not detected on Cu-based electrodes. This sets a new direction in which novel non-Cu electrocatalysts could be explored. These recent advances are summarized in this review. We focus on the CO2RR to multi-carbon products on non-Cu electrodes in aqueous electrolytes under ambient conditions, with an emphasis on the C–C bond formation mechanisms. The current challenges and corresponding strategies for the CO2RR to multi-carbon products on non-Cu catalysts are also discussed.

Graphical abstract: Formation of C–C bonds during electrocatalytic CO2 reduction on non-copper electrodes

Article information

Article type
Review Article
Submitted
27 ส.ค. 2563
Accepted
14 ต.ค. 2563
First published
05 พ.ย. 2563

J. Mater. Chem. A, 2020,8, 23162-23186

Formation of C–C bonds during electrocatalytic CO2 reduction on non-copper electrodes

Y. Zhou and B. S. Yeo, J. Mater. Chem. A, 2020, 8, 23162 DOI: 10.1039/D0TA08402F

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