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Fundamentals of Gas Diffusion Electrodes and Electrolysers for Carbon Dioxide Utilisation: Challenges and Opportunities / Sandra Hernandez Aldave, Enrico Andreoli

Catalysts, Volume: 10, Issue: 6, Start page: 713

Swansea University Authors: Sandra Hernandez Aldave, Enrico Andreoli

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DOI (Published version): 10.3390/catal10060713

Abstract

Electrocatalysis plays a prominent role in the development of carbon dioxide utilisation technologies. Many new and improved CO2 conversion catalysts have been developed in recent years, progressively achieving better performance. However, within this flourishing field, a disconnect in catalyst perf...

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Published in: Catalysts
ISSN: 2073-4344
Published: MDPI AG 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa55201
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spelling 2020-11-05T14:13:28.8640257 v2 55201 2020-09-18 Fundamentals of Gas Diffusion Electrodes and Electrolysers for Carbon Dioxide Utilisation: Challenges and Opportunities 3c2500b52ca560852fb4b9b1d2cbf4a2 Sandra Hernandez Aldave Sandra Hernandez Aldave true false cbd843daab780bb55698a3daccd74df8 0000-0002-1207-2314 Enrico Andreoli Enrico Andreoli true false 2020-09-18 FGSEN Electrocatalysis plays a prominent role in the development of carbon dioxide utilisation technologies. Many new and improved CO2 conversion catalysts have been developed in recent years, progressively achieving better performance. However, within this flourishing field, a disconnect in catalyst performance evaluation has emerged as the Achilles heel of CO2 electrolysis. Too often, catalysts are assessed in electrochemical settings that are far removed from industrially relevant operational conditions, where CO2 mass transport limitations should be minimised. To overcome this issue, gas diffusion electrodes and gas-fed electrolysers need to be developed and applied, presenting new challenges and opportunities to the CO2 electrolysis community. In this review, we introduce the reader to the fundamentals of gas diffusion electrodes and gas-fed electrolysers, highlighting their advantages and disadvantages. We discuss in detail the design of gas diffusion electrodes and their operation within gas-fed electrolysers in both flow-through and flow-by configurations. Then, we correlate the structure and composition of gas diffusion electrodes to the operational performance of electrolysers, indicating options and prospects for improvement. Overall, this study will equip the reader with the fundamental understanding required to enhance and optimise CO2 catalysis beyond the laboratory scale. Journal Article Catalysts 10 6 713 MDPI AG 2073-4344 CO2 electrocatalysis; gas diffusion electrodes; gas-fed electrolysers 26 6 2020 2020-06-26 10.3390/catal10060713 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2020-11-05T14:13:28.8640257 2020-09-18T08:56:54.8907730 College of Engineering Engineering Sandra Hernandez Aldave 1 Enrico Andreoli 0000-0002-1207-2314 2 55201__18196__2fe98df8b46f4c5098db27969fc5b41e.pdf 55201.pdf 2020-09-18T08:58:41.6828022 Output 4456324 application/pdf Version of Record true © 2020 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 4.0 (CC BY) License true eng http://creativecommons.org/licenses/by/4.0/
title Fundamentals of Gas Diffusion Electrodes and Electrolysers for Carbon Dioxide Utilisation: Challenges and Opportunities
spellingShingle Fundamentals of Gas Diffusion Electrodes and Electrolysers for Carbon Dioxide Utilisation: Challenges and Opportunities
Sandra, Hernandez Aldave
Enrico, Andreoli
title_short Fundamentals of Gas Diffusion Electrodes and Electrolysers for Carbon Dioxide Utilisation: Challenges and Opportunities
title_full Fundamentals of Gas Diffusion Electrodes and Electrolysers for Carbon Dioxide Utilisation: Challenges and Opportunities
title_fullStr Fundamentals of Gas Diffusion Electrodes and Electrolysers for Carbon Dioxide Utilisation: Challenges and Opportunities
title_full_unstemmed Fundamentals of Gas Diffusion Electrodes and Electrolysers for Carbon Dioxide Utilisation: Challenges and Opportunities
title_sort Fundamentals of Gas Diffusion Electrodes and Electrolysers for Carbon Dioxide Utilisation: Challenges and Opportunities
author_id_str_mv 3c2500b52ca560852fb4b9b1d2cbf4a2
cbd843daab780bb55698a3daccd74df8
author_id_fullname_str_mv 3c2500b52ca560852fb4b9b1d2cbf4a2_***_Sandra, Hernandez Aldave
cbd843daab780bb55698a3daccd74df8_***_Enrico, Andreoli
author Sandra, Hernandez Aldave
Enrico, Andreoli
author2 Sandra Hernandez Aldave
Enrico Andreoli
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publishDate 2020
institution Swansea University
issn 2073-4344
doi_str_mv 10.3390/catal10060713
publisher MDPI AG
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description Electrocatalysis plays a prominent role in the development of carbon dioxide utilisation technologies. Many new and improved CO2 conversion catalysts have been developed in recent years, progressively achieving better performance. However, within this flourishing field, a disconnect in catalyst performance evaluation has emerged as the Achilles heel of CO2 electrolysis. Too often, catalysts are assessed in electrochemical settings that are far removed from industrially relevant operational conditions, where CO2 mass transport limitations should be minimised. To overcome this issue, gas diffusion electrodes and gas-fed electrolysers need to be developed and applied, presenting new challenges and opportunities to the CO2 electrolysis community. In this review, we introduce the reader to the fundamentals of gas diffusion electrodes and gas-fed electrolysers, highlighting their advantages and disadvantages. We discuss in detail the design of gas diffusion electrodes and their operation within gas-fed electrolysers in both flow-through and flow-by configurations. Then, we correlate the structure and composition of gas diffusion electrodes to the operational performance of electrolysers, indicating options and prospects for improvement. Overall, this study will equip the reader with the fundamental understanding required to enhance and optimise CO2 catalysis beyond the laboratory scale.
published_date 2020-06-26T04:18:35Z
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