Towards a circular economy for Pt catalysts. Case study

This work links two challenges that our society is facing nowadays, the climate change and the scarcity of key raw materials as the platinum group materials are. Hence, Pt from membrane electrode assemblies used in the well-known Westinghouse cycle for hydrogen production has been successfully recov...

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Autores: Montiel, Miguel A., Granados Fernández, Rafael, Diaz Abad, Sergio, Saez, C., Fernández Marchante, Carmen María, Rodrigo, Manuel Andrés, Lobato Bajo, Justo
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/36400
Acceso en línea:https://doi.org/10.1016/j.apcatb.2023.122414
https://hdl.handle.net/10578/36400
Access Level:acceso abierto
Palabra clave:ECSA
Electrocatalysts
Hydrogen
Pt
Recovery
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spelling Towards a circular economy for Pt catalysts. Case studyPt recovery from electrodes for hydrogen productionMontiel, Miguel A.Granados Fernández, RafaelDiaz Abad, SergioSaez, C.Fernández Marchante, Carmen MaríaRodrigo, Manuel AndrésLobato Bajo, JustoECSAElectrocatalystsHydrogenPtRecoveryThis work links two challenges that our society is facing nowadays, the climate change and the scarcity of key raw materials as the platinum group materials are. Hence, Pt from membrane electrode assemblies used in the well-known Westinghouse cycle for hydrogen production has been successfully recovered using the selective electrochemical dissolution process and reaching global efficiencies of 70 wt%. Pt electrocatalysts were synthesized from the Pt recovered from the spent electrodes and characterized. Thus, the scanning electrochemical microscopy technique demonstrated that Pt was well dispersed onto the carbon support. Moreover, electrodes with both, commercial and recovered Pt/C catalysts were prepared and tested. The electrodes with the catalyst prepared from the spent MEAs show a good activity towards the SO2 oxidation, the reaction for H2 production, and above all, a very high stability. In conclusion, the circular economy of Pt based catalyst for a H2 production process has been achieved.Elsevier202420242023info:eu-repo/semantics/articleapplication/pdfhttps://doi.org/10.1016/j.apcatb.2023.122414https://hdl.handle.net/10578/36400reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésFJC2019-039279-IPID2019-107271RB-I00SBPLY/17/180501/0003302018/12504info:eu-repo/semantics/openAccessAttribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/oai:ruidera.uclm.es:10578/364002026-05-27T07:36:41Z
dc.title.none.fl_str_mv Towards a circular economy for Pt catalysts. Case study
Pt recovery from electrodes for hydrogen production
title Towards a circular economy for Pt catalysts. Case study
spellingShingle Towards a circular economy for Pt catalysts. Case study
Montiel, Miguel A.
ECSA
Electrocatalysts
Hydrogen
Pt
Recovery
title_short Towards a circular economy for Pt catalysts. Case study
title_full Towards a circular economy for Pt catalysts. Case study
title_fullStr Towards a circular economy for Pt catalysts. Case study
title_full_unstemmed Towards a circular economy for Pt catalysts. Case study
title_sort Towards a circular economy for Pt catalysts. Case study
dc.creator.none.fl_str_mv Montiel, Miguel A.
Granados Fernández, Rafael
Diaz Abad, Sergio
Saez, C.
Fernández Marchante, Carmen María
Rodrigo, Manuel Andrés
Lobato Bajo, Justo
author Montiel, Miguel A.
author_facet Montiel, Miguel A.
Granados Fernández, Rafael
Diaz Abad, Sergio
Saez, C.
Fernández Marchante, Carmen María
Rodrigo, Manuel Andrés
Lobato Bajo, Justo
author_role author
author2 Granados Fernández, Rafael
Diaz Abad, Sergio
Saez, C.
Fernández Marchante, Carmen María
Rodrigo, Manuel Andrés
Lobato Bajo, Justo
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv ECSA
Electrocatalysts
Hydrogen
Pt
Recovery
topic ECSA
Electrocatalysts
Hydrogen
Pt
Recovery
description This work links two challenges that our society is facing nowadays, the climate change and the scarcity of key raw materials as the platinum group materials are. Hence, Pt from membrane electrode assemblies used in the well-known Westinghouse cycle for hydrogen production has been successfully recovered using the selective electrochemical dissolution process and reaching global efficiencies of 70 wt%. Pt electrocatalysts were synthesized from the Pt recovered from the spent electrodes and characterized. Thus, the scanning electrochemical microscopy technique demonstrated that Pt was well dispersed onto the carbon support. Moreover, electrodes with both, commercial and recovered Pt/C catalysts were prepared and tested. The electrodes with the catalyst prepared from the spent MEAs show a good activity towards the SO2 oxidation, the reaction for H2 production, and above all, a very high stability. In conclusion, the circular economy of Pt based catalyst for a H2 production process has been achieved.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.apcatb.2023.122414
https://hdl.handle.net/10578/36400
url https://doi.org/10.1016/j.apcatb.2023.122414
https://hdl.handle.net/10578/36400
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv FJC2019-039279-I
PID2019-107271RB-I00
SBPLY/17/180501/000330
2018/12504
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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