High Performance and Durable Anode with 10-Fold Reduction of Iridium Loading for Proton Exchange Membrane Water Electrolysis

Proton exchange membrane water electrolysis (PEMWE) technology is especially advantageous for green H2 production as a clean energy vector. During the water electrolysis process, the oxygen evolution reaction (OER) requires a large amount of iridium (2-3 mgIr cm−2) as catalyst. This material is scar...

Descripción completa

Detalles Bibliográficos
Autores: Torrero, Jorge, Morawietz, Tobias, García Sanchez, Daniel, Galyamin, Dmitry, Retuerto, María, Martin-Diaconescu, Vlad, Rojas Muñoz, Sergio, Alonso, J. A., Gago, Aldo Saul, Friedrich, Kaspar Andreas
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/350504
Acceso en línea:http://hdl.handle.net/10261/350504
https://api.elsevier.com/content/abstract/scopus_id/85156249141
Access Level:acceso abierto
Palabra clave:degradation
iridium
low loading
OER
PEM water electrolysis
id ES_bccffb3bfce78a681f219e4fd16c8487
oai_identifier_str oai:digital.csic.es:10261/350504
network_acronym_str ES
network_name_str España
repository_id_str
spelling High Performance and Durable Anode with 10-Fold Reduction of Iridium Loading for Proton Exchange Membrane Water ElectrolysisTorrero, JorgeMorawietz, TobiasGarcía Sanchez, DanielGalyamin, DmitryRetuerto, MaríaMartin-Diaconescu, VladRojas Muñoz, SergioAlonso, J. A.Gago, Aldo SaulFriedrich, Kaspar Andreasdegradationiridiumlow loadingOERPEM water electrolysisProton exchange membrane water electrolysis (PEMWE) technology is especially advantageous for green H2 production as a clean energy vector. During the water electrolysis process, the oxygen evolution reaction (OER) requires a large amount of iridium (2-3 mgIr cm−2) as catalyst. This material is scarce and expensive, representing a major bottleneck for large-scale deployment of electrolyzers. This work develops an anode with 10-fold reduction of Ir loading (0.2 mgIr cm−2) compared to what it is used in commercial PEMWE for more than 1000 h. An advanced catalyst based on an Ir mixed oxide (Sr2CaIrO6) is used for this purpose. Transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and X-ray absorption spectroscopy (XAS) analyses show that the unconventional structure of the reconstructed catalyst can contribute to the reduction of Ir in the catalyst layer. The reconfiguration of the ionomer in the catalyst layer is also observed by scanning electron microscopy (SEM) and atomic force microscopy (AFM), results in almost the full coverage of the catalytic layer with ionomer. The results presented herein demonstrate that it is possible to achieve high performance and stability in PEMWE with low Ir loading in the anode without showing significant degradation.The authors acknowledge PROMET-H2 project. This project has re ceived funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 862253. J.T. wishes to acknowledge the Deutsche Akademische Austausch Dienst (DAAD), Scholarship code number 57540124. M.R. and S.R. thank financial sup port from grants PID2019-103967RJ-I00 and PID2020-116712RB-C21; J.A.A. thanks support to the Project PID2021-122477OB-I0, all funded by MCIN/AEI/10.13039/501100011033. XAS experiments were performed at the BL22-CLÆSS beamline at the ALBA Synchrotron with the collaboration of ALBA staff as part of projects 2022035822 and 2022035785. Open access funding enabled and organized by Projekt DEAL.The data that support the findings of this study are available from the cor responding author upon reasonable request.Peer reviewedWiley-VCH0000-0003-1277-57460000-0003-2291-93600000-0002-3783-56990000-0002-4301-70270000-0001-7564-3500#NODATA##NODATA##NODATA#0000-0001-7000-171X#NODATA#Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/350504https://api.elsevier.com/content/abstract/scopus_id/85156249141reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésAdvanced Energy Materialshttps://doi.org/10.1002/aenm.202204169Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3505042026-05-22T06:33:51Z
dc.title.none.fl_str_mv High Performance and Durable Anode with 10-Fold Reduction of Iridium Loading for Proton Exchange Membrane Water Electrolysis
title High Performance and Durable Anode with 10-Fold Reduction of Iridium Loading for Proton Exchange Membrane Water Electrolysis
spellingShingle High Performance and Durable Anode with 10-Fold Reduction of Iridium Loading for Proton Exchange Membrane Water Electrolysis
Torrero, Jorge
degradation
iridium
low loading
OER
PEM water electrolysis
title_short High Performance and Durable Anode with 10-Fold Reduction of Iridium Loading for Proton Exchange Membrane Water Electrolysis
title_full High Performance and Durable Anode with 10-Fold Reduction of Iridium Loading for Proton Exchange Membrane Water Electrolysis
title_fullStr High Performance and Durable Anode with 10-Fold Reduction of Iridium Loading for Proton Exchange Membrane Water Electrolysis
title_full_unstemmed High Performance and Durable Anode with 10-Fold Reduction of Iridium Loading for Proton Exchange Membrane Water Electrolysis
title_sort High Performance and Durable Anode with 10-Fold Reduction of Iridium Loading for Proton Exchange Membrane Water Electrolysis
dc.creator.none.fl_str_mv Torrero, Jorge
Morawietz, Tobias
García Sanchez, Daniel
Galyamin, Dmitry
Retuerto, María
Martin-Diaconescu, Vlad
Rojas Muñoz, Sergio
Alonso, J. A.
Gago, Aldo Saul
Friedrich, Kaspar Andreas
author Torrero, Jorge
author_facet Torrero, Jorge
Morawietz, Tobias
García Sanchez, Daniel
Galyamin, Dmitry
Retuerto, María
Martin-Diaconescu, Vlad
Rojas Muñoz, Sergio
Alonso, J. A.
Gago, Aldo Saul
Friedrich, Kaspar Andreas
author_role author
author2 Morawietz, Tobias
García Sanchez, Daniel
Galyamin, Dmitry
Retuerto, María
Martin-Diaconescu, Vlad
Rojas Muñoz, Sergio
Alonso, J. A.
Gago, Aldo Saul
Friedrich, Kaspar Andreas
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv 0000-0003-1277-5746
0000-0003-2291-9360
0000-0002-3783-5699
0000-0002-4301-7027
0000-0001-7564-3500
#NODATA#
#NODATA#
#NODATA#
0000-0001-7000-171X
#NODATA#
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv degradation
iridium
low loading
OER
PEM water electrolysis
topic degradation
iridium
low loading
OER
PEM water electrolysis
description Proton exchange membrane water electrolysis (PEMWE) technology is especially advantageous for green H2 production as a clean energy vector. During the water electrolysis process, the oxygen evolution reaction (OER) requires a large amount of iridium (2-3 mgIr cm−2) as catalyst. This material is scarce and expensive, representing a major bottleneck for large-scale deployment of electrolyzers. This work develops an anode with 10-fold reduction of Ir loading (0.2 mgIr cm−2) compared to what it is used in commercial PEMWE for more than 1000 h. An advanced catalyst based on an Ir mixed oxide (Sr2CaIrO6) is used for this purpose. Transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and X-ray absorption spectroscopy (XAS) analyses show that the unconventional structure of the reconstructed catalyst can contribute to the reduction of Ir in the catalyst layer. The reconfiguration of the ionomer in the catalyst layer is also observed by scanning electron microscopy (SEM) and atomic force microscopy (AFM), results in almost the full coverage of the catalytic layer with ionomer. The results presented herein demonstrate that it is possible to achieve high performance and stability in PEMWE with low Ir loading in the anode without showing significant degradation.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/350504
https://api.elsevier.com/content/abstract/scopus_id/85156249141
url http://hdl.handle.net/10261/350504
https://api.elsevier.com/content/abstract/scopus_id/85156249141
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Advanced Energy Materials
https://doi.org/10.1002/aenm.202204169
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Wiley-VCH
publisher.none.fl_str_mv Wiley-VCH
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869418147387277312
score 15,812429

Similares en LA Referencia