Electrochemical Stability of Rhodium-Platinum Core-Shell Nanoparticles

Rhodium-platinum core-shell nanoparticles on a carbon support (Rh@Pt/C NPs) are promising candidates as anode catalysts for polymer electrolyte membrane fuel cells. However, their electrochemical stability needs to be further explored for successful application in commercial fuel cells. Here we empl...

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Autores: Vega-Paredes, Miquel|||0000-0001-9916-0167, Aymerich-Armengol, Raquel, Arenas Esteban, Daniel|||0000-0002-5626-9848, Martí-Sánchez, Sara|||0000-0003-4283-1489, Bals, Sara|||0000-0002-4249-8017, Scheu, Christina|||0000-0001-7916-1533, Garzón Manjón, Alba|||0000-0003-2954-1102
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:283417
Acceso en línea:https://ddd.uab.cat/record/283417
https://dx.doi.org/urn:doi:10.1021/acsnano.3c04039
Access Level:acceso abierto
Palabra clave:Fuel cells
Catalysts
Identical location
Degradation
Platinum
Rhodium
Core-shell
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spelling Electrochemical Stability of Rhodium-Platinum Core-Shell NanoparticlesAn Identical Location Scanning Transmission Electron Microscopy StudyVega-Paredes, Miquel|||0000-0001-9916-0167Aymerich-Armengol, RaquelArenas Esteban, Daniel|||0000-0002-5626-9848Martí-Sánchez, Sara|||0000-0003-4283-1489Bals, Sara|||0000-0002-4249-8017Scheu, Christina|||0000-0001-7916-1533Garzón Manjón, Alba|||0000-0003-2954-1102Fuel cellsCatalystsIdentical locationDegradationPlatinumRhodiumCore-shellRhodium-platinum core-shell nanoparticles on a carbon support (Rh@Pt/C NPs) are promising candidates as anode catalysts for polymer electrolyte membrane fuel cells. However, their electrochemical stability needs to be further explored for successful application in commercial fuel cells. Here we employ identical location scanning transmission electron microscopy to track the morphological and compositional changes of Rh@Pt/C NPs during potential cycling (10 000 cycles, 0.06-0.8 V, 0.5 HSO) down to the atomic level, which are then used for understanding the current evolution occurring during the potential cycles. Our results reveal a high stability of the Rh@Pt/C system and point toward particle detachment from the carbon support as the main degradation mechanism. 22023-01-0120232023-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/283417https://dx.doi.org/urn:doi:10.1021/acsnano.3c04039reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengEuropean Commission https://doi.org/10.13039/501100000780 823717Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 RYC2021-033479-Iopen accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2834172026-06-06T12:50:31Z
dc.title.none.fl_str_mv Electrochemical Stability of Rhodium-Platinum Core-Shell Nanoparticles
An Identical Location Scanning Transmission Electron Microscopy Study
title Electrochemical Stability of Rhodium-Platinum Core-Shell Nanoparticles
spellingShingle Electrochemical Stability of Rhodium-Platinum Core-Shell Nanoparticles
Vega-Paredes, Miquel|||0000-0001-9916-0167
Fuel cells
Catalysts
Identical location
Degradation
Platinum
Rhodium
Core-shell
title_short Electrochemical Stability of Rhodium-Platinum Core-Shell Nanoparticles
title_full Electrochemical Stability of Rhodium-Platinum Core-Shell Nanoparticles
title_fullStr Electrochemical Stability of Rhodium-Platinum Core-Shell Nanoparticles
title_full_unstemmed Electrochemical Stability of Rhodium-Platinum Core-Shell Nanoparticles
title_sort Electrochemical Stability of Rhodium-Platinum Core-Shell Nanoparticles
dc.creator.none.fl_str_mv Vega-Paredes, Miquel|||0000-0001-9916-0167
Aymerich-Armengol, Raquel
Arenas Esteban, Daniel|||0000-0002-5626-9848
Martí-Sánchez, Sara|||0000-0003-4283-1489
Bals, Sara|||0000-0002-4249-8017
Scheu, Christina|||0000-0001-7916-1533
Garzón Manjón, Alba|||0000-0003-2954-1102
author Vega-Paredes, Miquel|||0000-0001-9916-0167
author_facet Vega-Paredes, Miquel|||0000-0001-9916-0167
Aymerich-Armengol, Raquel
Arenas Esteban, Daniel|||0000-0002-5626-9848
Martí-Sánchez, Sara|||0000-0003-4283-1489
Bals, Sara|||0000-0002-4249-8017
Scheu, Christina|||0000-0001-7916-1533
Garzón Manjón, Alba|||0000-0003-2954-1102
author_role author
author2 Aymerich-Armengol, Raquel
Arenas Esteban, Daniel|||0000-0002-5626-9848
Martí-Sánchez, Sara|||0000-0003-4283-1489
Bals, Sara|||0000-0002-4249-8017
Scheu, Christina|||0000-0001-7916-1533
Garzón Manjón, Alba|||0000-0003-2954-1102
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Fuel cells
Catalysts
Identical location
Degradation
Platinum
Rhodium
Core-shell
topic Fuel cells
Catalysts
Identical location
Degradation
Platinum
Rhodium
Core-shell
description Rhodium-platinum core-shell nanoparticles on a carbon support (Rh@Pt/C NPs) are promising candidates as anode catalysts for polymer electrolyte membrane fuel cells. However, their electrochemical stability needs to be further explored for successful application in commercial fuel cells. Here we employ identical location scanning transmission electron microscopy to track the morphological and compositional changes of Rh@Pt/C NPs during potential cycling (10 000 cycles, 0.06-0.8 V, 0.5 HSO) down to the atomic level, which are then used for understanding the current evolution occurring during the potential cycles. Our results reveal a high stability of the Rh@Pt/C system and point toward particle detachment from the carbon support as the main degradation mechanism.
publishDate 2023
dc.date.none.fl_str_mv 2
2023-01-01
2023
2023-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/283417
https://dx.doi.org/urn:doi:10.1021/acsnano.3c04039
url https://ddd.uab.cat/record/283417
https://dx.doi.org/urn:doi:10.1021/acsnano.3c04039
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission https://doi.org/10.13039/501100000780 823717
Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 RYC2021-033479-I
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/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
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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