Advances in the development of innovative Bi-Sn-Sb-based Gas Diffusion Electrodes for continuous CO2 electroreduction to formate

The electrocatalytic reduction of CO2 to formate or formic acid represents a promising approach to mitigating CO2 emissions. Despite progress with Bi and Sn-based cathodes, there remains a demand for new electrocatalytic materials with enhanced activity for industrial-scale implementation. In a rece...

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Autores: Díaz Sainz, Guillermo, Fernández Caso, Kevin, Ávila Bolívar, Beatriz, Montiel Leguey, Vicente, Solla Gullón, José, Álvarez Guerra, Manuel|||0000-0002-3546-584X, Irabien Gulías, Ángel|||0000-0002-2411-4163
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/36149
Acceso en línea:https://hdl.handle.net/10902/36149
Access Level:acceso abierto
Palabra clave:Bi-Sn-Sb-based nanoparticles
Gas Diffusion Electrodes
CO2 electroreduction
Improved performance
Formate
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spelling Advances in the development of innovative Bi-Sn-Sb-based Gas Diffusion Electrodes for continuous CO2 electroreduction to formateDíaz Sainz, GuillermoFernández Caso, KevinÁvila Bolívar, BeatrizMontiel Leguey, VicenteSolla Gullón, JoséÁlvarez Guerra, Manuel|||0000-0002-3546-584XIrabien Gulías, Ángel|||0000-0002-2411-4163Bi-Sn-Sb-based nanoparticlesGas Diffusion ElectrodesCO2 electroreductionImproved performanceFormateThe electrocatalytic reduction of CO2 to formate or formic acid represents a promising approach to mitigating CO2 emissions. Despite progress with Bi and Sn-based cathodes, there remains a demand for new electrocatalytic materials with enhanced activity for industrial-scale implementation. In a recent contribution, carbon-supported Bi-Sn-Sb nanoparticles with different atomic ratios were prepared and evaluated for the electrocatalytic reduction of CO2 to formate, assessing their performance in terms of activity, selectivity, and stability under working conditions in an H-type cell. Under this electrochemical reactor configuration, the results clearly indicated that the incorporation of small amounts of Sb and Sn into Bi significantly enhanced stability without substantially affecting activity and selectivity, achieving promising results with Bi80Sn10Sb10 electrocatalysts. Here, we report the use of Bi-Sn-Sb-based Gas Diffusion Electrodes (GDEs) in a flow electrochemical reactor for the electrocatalytic reduction of CO2 to formate. The study also aims to rigorously compare the performance of Bi-Sn-Sb GDEs with that of analogous GDEs based solely on Bi or Sn. When compared to relevant references, the Bi-Sn-Sb catalyst demonstrates performance metrics that reflect comparable system efficiency to the Bi and Sn cathodes previously used by our research group, operating at current densities up to 200 mA·cm−2 and achieving formate concentrations of approximately 15 g·L−1. Furthermore, these materials exhibited technical feasibility, remaining stable throughout the 5-hour experiment with less than a 10 % decrease in concentration. This stability marks a vital first step toward the future implementation of this type of cathode in the electrochemical reduction of CO₂ to formate.The authors fully acknowledge the financial support received from the Spanish Research Agency (AEI) through projects PID2022–138491OB-C31, PID2022–138491OB-C32 (MICIU/AEI/10.13039/501100011033 and by ERDF/EU), TED2021–129810B-C21 (MCIN/AEI /10.13039/501100011033), PLEC2022–009398 (MCIN/AEI/10.13039/501100011033 and European Union Next Generation EU/PRTR) and the “Complementary Plan in the area of Energy and Renewable Hydrogen” (funded by Autonomous Community of Cantabria, Spain, and the European Union Next Generation EU/PRTR). The present work is related to CAPTUS Project. This project has received funding from the European Union’s Horizon Europe research and innovation programme under grant agreement Nº 101118265.ElsevierUniversidad de Cantabria20252025-05-01journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttps://hdl.handle.net/10902/36149Journal of CO2 Utilization, 2025, 95, 103070reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/361492026-06-02T12:39:31Z
dc.title.none.fl_str_mv Advances in the development of innovative Bi-Sn-Sb-based Gas Diffusion Electrodes for continuous CO2 electroreduction to formate
title Advances in the development of innovative Bi-Sn-Sb-based Gas Diffusion Electrodes for continuous CO2 electroreduction to formate
spellingShingle Advances in the development of innovative Bi-Sn-Sb-based Gas Diffusion Electrodes for continuous CO2 electroreduction to formate
Díaz Sainz, Guillermo
Bi-Sn-Sb-based nanoparticles
Gas Diffusion Electrodes
CO2 electroreduction
Improved performance
Formate
title_short Advances in the development of innovative Bi-Sn-Sb-based Gas Diffusion Electrodes for continuous CO2 electroreduction to formate
title_full Advances in the development of innovative Bi-Sn-Sb-based Gas Diffusion Electrodes for continuous CO2 electroreduction to formate
title_fullStr Advances in the development of innovative Bi-Sn-Sb-based Gas Diffusion Electrodes for continuous CO2 electroreduction to formate
title_full_unstemmed Advances in the development of innovative Bi-Sn-Sb-based Gas Diffusion Electrodes for continuous CO2 electroreduction to formate
title_sort Advances in the development of innovative Bi-Sn-Sb-based Gas Diffusion Electrodes for continuous CO2 electroreduction to formate
dc.creator.none.fl_str_mv Díaz Sainz, Guillermo
Fernández Caso, Kevin
Ávila Bolívar, Beatriz
Montiel Leguey, Vicente
Solla Gullón, José
Álvarez Guerra, Manuel|||0000-0002-3546-584X
Irabien Gulías, Ángel|||0000-0002-2411-4163
author Díaz Sainz, Guillermo
author_facet Díaz Sainz, Guillermo
Fernández Caso, Kevin
Ávila Bolívar, Beatriz
Montiel Leguey, Vicente
Solla Gullón, José
Álvarez Guerra, Manuel|||0000-0002-3546-584X
Irabien Gulías, Ángel|||0000-0002-2411-4163
author_role author
author2 Fernández Caso, Kevin
Ávila Bolívar, Beatriz
Montiel Leguey, Vicente
Solla Gullón, José
Álvarez Guerra, Manuel|||0000-0002-3546-584X
Irabien Gulías, Ángel|||0000-0002-2411-4163
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv Bi-Sn-Sb-based nanoparticles
Gas Diffusion Electrodes
CO2 electroreduction
Improved performance
Formate
topic Bi-Sn-Sb-based nanoparticles
Gas Diffusion Electrodes
CO2 electroreduction
Improved performance
Formate
description The electrocatalytic reduction of CO2 to formate or formic acid represents a promising approach to mitigating CO2 emissions. Despite progress with Bi and Sn-based cathodes, there remains a demand for new electrocatalytic materials with enhanced activity for industrial-scale implementation. In a recent contribution, carbon-supported Bi-Sn-Sb nanoparticles with different atomic ratios were prepared and evaluated for the electrocatalytic reduction of CO2 to formate, assessing their performance in terms of activity, selectivity, and stability under working conditions in an H-type cell. Under this electrochemical reactor configuration, the results clearly indicated that the incorporation of small amounts of Sb and Sn into Bi significantly enhanced stability without substantially affecting activity and selectivity, achieving promising results with Bi80Sn10Sb10 electrocatalysts. Here, we report the use of Bi-Sn-Sb-based Gas Diffusion Electrodes (GDEs) in a flow electrochemical reactor for the electrocatalytic reduction of CO2 to formate. The study also aims to rigorously compare the performance of Bi-Sn-Sb GDEs with that of analogous GDEs based solely on Bi or Sn. When compared to relevant references, the Bi-Sn-Sb catalyst demonstrates performance metrics that reflect comparable system efficiency to the Bi and Sn cathodes previously used by our research group, operating at current densities up to 200 mA·cm−2 and achieving formate concentrations of approximately 15 g·L−1. Furthermore, these materials exhibited technical feasibility, remaining stable throughout the 5-hour experiment with less than a 10 % decrease in concentration. This stability marks a vital first step toward the future implementation of this type of cathode in the electrochemical reduction of CO₂ to formate.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-05-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10902/36149
url https://hdl.handle.net/10902/36149
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Journal of CO2 Utilization, 2025, 95, 103070
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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