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Carbon-efficient carbon dioxide electrolysers

Adnan Ozden, F. Pelayo García de Arquer, Jianan Erick Huang, Joshua Wicks, Jared Sisler, Rui Kai Miao, Colin P. O’Brien, Geonhui Lee, Xue Wang, Alexander H. Ip, Edward H. Sargent () and David Sinton ()
Additional contact information
Adnan Ozden: University of Toronto
F. Pelayo García de Arquer: The Barcelona Institute of Science and Technology
Jianan Erick Huang: University of Toronto
Joshua Wicks: University of Toronto
Jared Sisler: University of Toronto
Rui Kai Miao: University of Toronto
Colin P. O’Brien: University of Toronto
Geonhui Lee: University of Toronto
Xue Wang: University of Toronto
Alexander H. Ip: University of Toronto
Edward H. Sargent: University of Toronto
David Sinton: University of Toronto

Nature Sustainability, 2022, vol. 5, issue 7, 563-573

Abstract: Abstract The electroreduction of CO2 (CO2R) is the conversion of CO2 to renewable fuels and feedstocks, a promising technology that could support the transition from fossil to renewable sources in the chemical industry. Today the viability of CO2R technology is limited by carbonate formation via the reaction of reactant CO2 with hydroxides and the energy cost incurred to regenerate the reactant. In this Review, we analyse the literature on four emerging high single pass CO2 conversion approaches: CO2 regeneration from carbonate, CO2R in acidic media, cascade CO2R-COR and CO2R direct from a capture liquid. We analyse each system, describe the challenges associated with each pathway and outline future research directions towards the goal of ensuring that CO2R is viable and thus scalable.

Date: 2022
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DOI: 10.1038/s41893-022-00879-8

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