Enhanced stability of SrRuO3 mixed oxide via monovalent doping in Sr1-xKxRuO3 for the oxygen evolution reaction

Ru mixed oxides are the most active catalysts for the oxygen evolution reaction (OER) in acid electrolyte. However, their stability is seriously compromised during the reaction. In this work we show that it is possible to enhance both OER activity and durability of SrRuO3 mixed oxide by the partial...

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Autores: Rodríguez García, Isabel, Galyamin, Dmitry, Pascual, Laura, Ferrer, Pilar, Peña, Miguel A., Grinter, Dave, Held, Georg, Abdel Salam, Mohamed A., Mokhtar, Mohamed, Narasimharao, Katabathini, Retuerto, María, Rojas Muñoz, Sergio
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/414574
Acceso en línea:http://hdl.handle.net/10261/414574
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85122207628&doi=10.1016%2Fj.jpowsour.2021.230950&partnerID=40&md5=a6fdfd3907db2af6747762d54ceafd41
Access Level:acceso abierto
Palabra clave:Electrolysis
Green hydrogen
OER
Perovskite
Ru
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spelling Enhanced stability of SrRuO3 mixed oxide via monovalent doping in Sr1-xKxRuO3 for the oxygen evolution reactionRodríguez García, IsabelGalyamin, DmitryPascual, LauraFerrer, PilarPeña, Miguel A.Grinter, DaveHeld, GeorgAbdel Salam, Mohamed A.Mokhtar, MohamedNarasimharao, KatabathiniRetuerto, MaríaRojas Muñoz, SergioElectrolysisGreen hydrogenOERPerovskiteRuRu mixed oxides are the most active catalysts for the oxygen evolution reaction (OER) in acid electrolyte. However, their stability is seriously compromised during the reaction. In this work we show that it is possible to enhance both OER activity and durability of SrRuO3 mixed oxide by the partial doping with K+ in Sr2+ sites. Sr1-xKxRuO3 perovskites (x = 0.00, 0.05, 0.10 and 0.20) have been synthesized by wet chemistry. The partial doping with K+ cations led to oxides with Ru atoms in a higher oxidation state. In addition, K-doping resulted in perovskites with slightly higher symmetry. The performance of the K-doped perovskites for the OER was assessed in acid electrolyte. Clearly, the K-doped materials, especially Sr0.80K0.20RuO3, display higher activity (lower E10) and significantly higher durability than the undoped sample SrRuO3. The results indicate that chemical modifications on Ru perovskites can be a suitable strategy to improve the stability of Ru phases during the OER.We acknowledge PROMET-H2 project. This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 862253. The authors extend their appreciation to the Deputyship for Research & Innovation, Ministry of Education of Saudi Arabia for funding this research work through the project number 341. We acknowledge financial support of MCIN/AEI/10.13039/501100011033 for the projects ENE2016-77055-C3-3-R, PID2019-103967RJ-I00 and PID2020-116712RB-C21. M.R thanks MCIN/AEI/10.13039/501100011033 and “ESF Investing in your future” for the Ramon y Cajal research contract (RyC2019-026521) and L'Oréal-UNESCO for a “For Women in Science” Fellowship. The authors acknowledge Diamond Light Source for time on the VerSoX B07-B beamline under the commissioning proposal cm-28150. We acknowledge support of the publication fee by the CSIC Open Access Publication Support Initiative through its Unit of Information Resources for Research (URICI).Peer reviewedElsevierEuropean CommissionMinistry of Education - Higher Education (Saudi Arabia)Agencia Estatal de Investigación (España)Ministerio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/414574https://www.scopus.com/inward/record.uri?eid=2-s2.0-85122207628&doi=10.1016%2Fj.jpowsour.2021.230950&partnerID=40&md5=a6fdfd3907db2af6747762d54ceafd41reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/862253info:eu-repo/grantAgreement/AEI//ENE2016-77055-C3-3-Rinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-116712RB-C21info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-103967RJ-I00info:eu-repo/grantAgreement/AEI//Journal of Power Sourceshttps://doi.org/10.1016/j.jpowsour.2021.230950Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4145742026-05-22T06:33:51Z
dc.title.none.fl_str_mv Enhanced stability of SrRuO3 mixed oxide via monovalent doping in Sr1-xKxRuO3 for the oxygen evolution reaction
title Enhanced stability of SrRuO3 mixed oxide via monovalent doping in Sr1-xKxRuO3 for the oxygen evolution reaction
spellingShingle Enhanced stability of SrRuO3 mixed oxide via monovalent doping in Sr1-xKxRuO3 for the oxygen evolution reaction
Rodríguez García, Isabel
Electrolysis
Green hydrogen
OER
Perovskite
Ru
title_short Enhanced stability of SrRuO3 mixed oxide via monovalent doping in Sr1-xKxRuO3 for the oxygen evolution reaction
title_full Enhanced stability of SrRuO3 mixed oxide via monovalent doping in Sr1-xKxRuO3 for the oxygen evolution reaction
title_fullStr Enhanced stability of SrRuO3 mixed oxide via monovalent doping in Sr1-xKxRuO3 for the oxygen evolution reaction
title_full_unstemmed Enhanced stability of SrRuO3 mixed oxide via monovalent doping in Sr1-xKxRuO3 for the oxygen evolution reaction
title_sort Enhanced stability of SrRuO3 mixed oxide via monovalent doping in Sr1-xKxRuO3 for the oxygen evolution reaction
dc.creator.none.fl_str_mv Rodríguez García, Isabel
Galyamin, Dmitry
Pascual, Laura
Ferrer, Pilar
Peña, Miguel A.
Grinter, Dave
Held, Georg
Abdel Salam, Mohamed A.
Mokhtar, Mohamed
Narasimharao, Katabathini
Retuerto, María
Rojas Muñoz, Sergio
author Rodríguez García, Isabel
author_facet Rodríguez García, Isabel
Galyamin, Dmitry
Pascual, Laura
Ferrer, Pilar
Peña, Miguel A.
Grinter, Dave
Held, Georg
Abdel Salam, Mohamed A.
Mokhtar, Mohamed
Narasimharao, Katabathini
Retuerto, María
Rojas Muñoz, Sergio
author_role author
author2 Galyamin, Dmitry
Pascual, Laura
Ferrer, Pilar
Peña, Miguel A.
Grinter, Dave
Held, Georg
Abdel Salam, Mohamed A.
Mokhtar, Mohamed
Narasimharao, Katabathini
Retuerto, María
Rojas Muñoz, Sergio
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Ministry of Education - Higher Education (Saudi Arabia)
Agencia Estatal de Investigación (España)
Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Electrolysis
Green hydrogen
OER
Perovskite
Ru
topic Electrolysis
Green hydrogen
OER
Perovskite
Ru
description Ru mixed oxides are the most active catalysts for the oxygen evolution reaction (OER) in acid electrolyte. However, their stability is seriously compromised during the reaction. In this work we show that it is possible to enhance both OER activity and durability of SrRuO3 mixed oxide by the partial doping with K+ in Sr2+ sites. Sr1-xKxRuO3 perovskites (x = 0.00, 0.05, 0.10 and 0.20) have been synthesized by wet chemistry. The partial doping with K+ cations led to oxides with Ru atoms in a higher oxidation state. In addition, K-doping resulted in perovskites with slightly higher symmetry. The performance of the K-doped perovskites for the OER was assessed in acid electrolyte. Clearly, the K-doped materials, especially Sr0.80K0.20RuO3, display higher activity (lower E10) and significantly higher durability than the undoped sample SrRuO3. The results indicate that chemical modifications on Ru perovskites can be a suitable strategy to improve the stability of Ru phases during the OER.
publishDate 2022
dc.date.none.fl_str_mv 2022
2026
2026
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/10261/414574
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85122207628&doi=10.1016%2Fj.jpowsour.2021.230950&partnerID=40&md5=a6fdfd3907db2af6747762d54ceafd41
url http://hdl.handle.net/10261/414574
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85122207628&doi=10.1016%2Fj.jpowsour.2021.230950&partnerID=40&md5=a6fdfd3907db2af6747762d54ceafd41
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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info:eu-repo/grantAgreement/EC/H2020/862253
info:eu-repo/grantAgreement/AEI//ENE2016-77055-C3-3-R
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-116712RB-C21
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-103967RJ-I00
info:eu-repo/grantAgreement/AEI//
Journal of Power Sources
https://doi.org/10.1016/j.jpowsour.2021.230950
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
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