Multiscale effects in tandem CO 2 electrolysis to C 2+ products

Cousins, Lewis S.; Creissen, Charles E.

Abstract

CO2 electrolysis is a sustainable technology capable of accelerating global decarbonisation through the production of high-value alternatives to fossil-derived products. CO2 conversion can generate critical multicarbon (C2+) products such as drop-in chemicals ethylene and ethanol, however achieving high selectivity from single-component catalysts is often limited by the competitive formation of C1 products. Tandem catalysis can overcome C2+ selectivity limitations through the incorporation of a component that generates a high concentration of CO, the primary reactant involved in the C–C coupling step to form C2+ products. A wide range of approaches to promote tandem CO2 electrolysis have been presented in recent literature that span atomic-scale manipulation to device-scale engineering. Therefore, an understanding of multiscale effects that contribute to selectivity alterations are required to develop effective tandem systems. In this review, we use relevant examples to highlight the complex and interlinked contributions to selectivity and provide an outlook for future development of tandem CO2 electrolysis systems.

Citation

Cousins, L. S., & Creissen, C. E. (in press). Multiscale effects in tandem CO 2 electrolysis to C 2+ products. Nanoscale, https://doi.org/10.1039/d3nr05547g

• Journal Article Type: Article
• Acceptance Date: Dec 11, 2023
• Online Publication Date: Dec 12, 2023
• Deposit Date: Dec 18, 2023
• Publicly Available Date: Dec 18, 2023
• Journal: Nanoscale
• Print ISSN: 2040-3364
• Electronic ISSN: 2040-3372
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• DOI: https://doi.org/10.1039/d3nr05547g