Electrolyte Engineering Stabilizes Photoanodes Decorated with Molecular Catalysts

Autores
Jenewein, Ken; Wang, Yuanxing; Liu, Tianying; McDonald, Tara; Zlatar, Matej; Kulyk, Nadiia; Benavente Llorente, Victoria; Kormányos, Attila; Wang, Dunwei; Cherevko, Serhiy
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Molecular catalysts are promising oxygen evolution promoters in conjunction with photoanodes for solar water splitting. Maintaining the stability of both photoabsorber and cocatalyst is still a prime challenge, with many efforts tackling this issue through sophisticated material designs. Such approaches often mask the importance of the electrode-electrolyte interface and overlook easily tunable system parameters, such as the electrolyte environment, to improve efficiency. We provide a systematic study on the activity-stability relationship of a prominent Fe2O3 photoanode modified with Ir molecular catalysts using in situ mass spectroscopy. After gaining detailed insights into the dissolution behavior of the Ir cocatalyst, a comprehensive pH study is conducted to probe the impact of the electrolyte on the performance. An inverse trend in Fe and Ir stability is found, with the best activity-stability synergy obtained at pH 9.7. The results bring awareness to the overall photostability and electrolyte engineering when advancing catalysts for solar water splitting.
Fil: Jenewein, Ken. Helmholtz Gemeinschaft. Forschungszentrum Jülich; Alemania. Universitat Erlangen-Nuremberg; Alemania
Fil: Wang, Yuanxing. Boston College; Estados Unidos
Fil: Liu, Tianying. Boston College; Estados Unidos
Fil: McDonald, Tara. Boston College; Estados Unidos
Fil: Zlatar, Matej. Universitat Erlangen-Nuremberg; Alemania. Helmholtz Gemeinschaft. Forschungszentrum Jülich; Alemania
Fil: Kulyk, Nadiia. Helmholtz Gemeinschaft. Forschungszentrum Jülich; Alemania
Fil: Benavente Llorente, Victoria. Helmholtz Gemeinschaft. Forschungszentrum Jülich; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Kormányos, Attila. Helmholtz Gemeinschaft. Forschungszentrum Jülich; Alemania
Fil: Wang, Dunwei. Boston College; Estados Unidos
Fil: Cherevko, Serhiy. Helmholtz Gemeinschaft. Forschungszentrum Jülich; Alemania
Materia
HETEROGENEOUS CATALYSIS
OPERANDO DISSOLUTION
PHOTOELECTROCHEMISTRY
STABILITY
WATER SPLITTING
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/226552
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/226552
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Electrolyte Engineering Stabilizes Photoanodes Decorated with Molecular CatalystsJenewein, KenWang, YuanxingLiu, TianyingMcDonald, TaraZlatar, MatejKulyk, NadiiaBenavente Llorente, VictoriaKormányos, AttilaWang, DunweiCherevko, SerhiyHETEROGENEOUS CATALYSISOPERANDO DISSOLUTIONPHOTOELECTROCHEMISTRYSTABILITYWATER SPLITTINGhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Molecular catalysts are promising oxygen evolution promoters in conjunction with photoanodes for solar water splitting. Maintaining the stability of both photoabsorber and cocatalyst is still a prime challenge, with many efforts tackling this issue through sophisticated material designs. Such approaches often mask the importance of the electrode-electrolyte interface and overlook easily tunable system parameters, such as the electrolyte environment, to improve efficiency. We provide a systematic study on the activity-stability relationship of a prominent Fe2O3 photoanode modified with Ir molecular catalysts using in situ mass spectroscopy. After gaining detailed insights into the dissolution behavior of the Ir cocatalyst, a comprehensive pH study is conducted to probe the impact of the electrolyte on the performance. An inverse trend in Fe and Ir stability is found, with the best activity-stability synergy obtained at pH 9.7. The results bring awareness to the overall photostability and electrolyte engineering when advancing catalysts for solar water splitting.Fil: Jenewein, Ken. Helmholtz Gemeinschaft. Forschungszentrum Jülich; Alemania. Universitat Erlangen-Nuremberg; AlemaniaFil: Wang, Yuanxing. Boston College; Estados UnidosFil: Liu, Tianying. Boston College; Estados UnidosFil: McDonald, Tara. Boston College; Estados UnidosFil: Zlatar, Matej. Universitat Erlangen-Nuremberg; Alemania. Helmholtz Gemeinschaft. Forschungszentrum Jülich; AlemaniaFil: Kulyk, Nadiia. Helmholtz Gemeinschaft. Forschungszentrum Jülich; AlemaniaFil: Benavente Llorente, Victoria. Helmholtz Gemeinschaft. Forschungszentrum Jülich; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Kormányos, Attila. Helmholtz Gemeinschaft. Forschungszentrum Jülich; AlemaniaFil: Wang, Dunwei. Boston College; Estados UnidosFil: Cherevko, Serhiy. Helmholtz Gemeinschaft. Forschungszentrum Jülich; AlemaniaWiley VCH Verlag2023-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/226552Jenewein, Ken; Wang, Yuanxing; Liu, Tianying; McDonald, Tara; Zlatar, Matej; et al.; Electrolyte Engineering Stabilizes Photoanodes Decorated with Molecular Catalysts; Wiley VCH Verlag; Chemsuschem; 16; 7; 1-2023; 1-111864-5631CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1002/cssc.202202319info:eu-repo/semantics/altIdentifier/doi/10.1002/cssc.202202319info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:35:16Zoai:ri.conicet.gov.ar:11336/226552instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:35:16.599CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electrolyte Engineering Stabilizes Photoanodes Decorated with Molecular Catalysts
title Electrolyte Engineering Stabilizes Photoanodes Decorated with Molecular Catalysts
spellingShingle Electrolyte Engineering Stabilizes Photoanodes Decorated with Molecular Catalysts
Jenewein, Ken
HETEROGENEOUS CATALYSIS
OPERANDO DISSOLUTION
PHOTOELECTROCHEMISTRY
STABILITY
WATER SPLITTING
title_short Electrolyte Engineering Stabilizes Photoanodes Decorated with Molecular Catalysts
title_full Electrolyte Engineering Stabilizes Photoanodes Decorated with Molecular Catalysts
title_fullStr Electrolyte Engineering Stabilizes Photoanodes Decorated with Molecular Catalysts
title_full_unstemmed Electrolyte Engineering Stabilizes Photoanodes Decorated with Molecular Catalysts
title_sort Electrolyte Engineering Stabilizes Photoanodes Decorated with Molecular Catalysts
dc.creator.none.fl_str_mv Jenewein, Ken
Wang, Yuanxing
Liu, Tianying
McDonald, Tara
Zlatar, Matej
Kulyk, Nadiia
Benavente Llorente, Victoria
Kormányos, Attila
Wang, Dunwei
Cherevko, Serhiy
author Jenewein, Ken
author_facet Jenewein, Ken
Wang, Yuanxing
Liu, Tianying
McDonald, Tara
Zlatar, Matej
Kulyk, Nadiia
Benavente Llorente, Victoria
Kormányos, Attila
Wang, Dunwei
Cherevko, Serhiy
author_role author
author2 Wang, Yuanxing
Liu, Tianying
McDonald, Tara
Zlatar, Matej
Kulyk, Nadiia
Benavente Llorente, Victoria
Kormányos, Attila
Wang, Dunwei
Cherevko, Serhiy
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv HETEROGENEOUS CATALYSIS
OPERANDO DISSOLUTION
PHOTOELECTROCHEMISTRY
STABILITY
WATER SPLITTING
topic HETEROGENEOUS CATALYSIS
OPERANDO DISSOLUTION
PHOTOELECTROCHEMISTRY
STABILITY
WATER SPLITTING
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Molecular catalysts are promising oxygen evolution promoters in conjunction with photoanodes for solar water splitting. Maintaining the stability of both photoabsorber and cocatalyst is still a prime challenge, with many efforts tackling this issue through sophisticated material designs. Such approaches often mask the importance of the electrode-electrolyte interface and overlook easily tunable system parameters, such as the electrolyte environment, to improve efficiency. We provide a systematic study on the activity-stability relationship of a prominent Fe2O3 photoanode modified with Ir molecular catalysts using in situ mass spectroscopy. After gaining detailed insights into the dissolution behavior of the Ir cocatalyst, a comprehensive pH study is conducted to probe the impact of the electrolyte on the performance. An inverse trend in Fe and Ir stability is found, with the best activity-stability synergy obtained at pH 9.7. The results bring awareness to the overall photostability and electrolyte engineering when advancing catalysts for solar water splitting.
Fil: Jenewein, Ken. Helmholtz Gemeinschaft. Forschungszentrum Jülich; Alemania. Universitat Erlangen-Nuremberg; Alemania
Fil: Wang, Yuanxing. Boston College; Estados Unidos
Fil: Liu, Tianying. Boston College; Estados Unidos
Fil: McDonald, Tara. Boston College; Estados Unidos
Fil: Zlatar, Matej. Universitat Erlangen-Nuremberg; Alemania. Helmholtz Gemeinschaft. Forschungszentrum Jülich; Alemania
Fil: Kulyk, Nadiia. Helmholtz Gemeinschaft. Forschungszentrum Jülich; Alemania
Fil: Benavente Llorente, Victoria. Helmholtz Gemeinschaft. Forschungszentrum Jülich; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Kormányos, Attila. Helmholtz Gemeinschaft. Forschungszentrum Jülich; Alemania
Fil: Wang, Dunwei. Boston College; Estados Unidos
Fil: Cherevko, Serhiy. Helmholtz Gemeinschaft. Forschungszentrum Jülich; Alemania
description Molecular catalysts are promising oxygen evolution promoters in conjunction with photoanodes for solar water splitting. Maintaining the stability of both photoabsorber and cocatalyst is still a prime challenge, with many efforts tackling this issue through sophisticated material designs. Such approaches often mask the importance of the electrode-electrolyte interface and overlook easily tunable system parameters, such as the electrolyte environment, to improve efficiency. We provide a systematic study on the activity-stability relationship of a prominent Fe2O3 photoanode modified with Ir molecular catalysts using in situ mass spectroscopy. After gaining detailed insights into the dissolution behavior of the Ir cocatalyst, a comprehensive pH study is conducted to probe the impact of the electrolyte on the performance. An inverse trend in Fe and Ir stability is found, with the best activity-stability synergy obtained at pH 9.7. The results bring awareness to the overall photostability and electrolyte engineering when advancing catalysts for solar water splitting.
publishDate 2023
dc.date.none.fl_str_mv 2023-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/226552
Jenewein, Ken; Wang, Yuanxing; Liu, Tianying; McDonald, Tara; Zlatar, Matej; et al.; Electrolyte Engineering Stabilizes Photoanodes Decorated with Molecular Catalysts; Wiley VCH Verlag; Chemsuschem; 16; 7; 1-2023; 1-11
1864-5631
CONICET Digital
CONICET
url http://hdl.handle.net/11336/226552
identifier_str_mv Jenewein, Ken; Wang, Yuanxing; Liu, Tianying; McDonald, Tara; Zlatar, Matej; et al.; Electrolyte Engineering Stabilizes Photoanodes Decorated with Molecular Catalysts; Wiley VCH Verlag; Chemsuschem; 16; 7; 1-2023; 1-11
1864-5631
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1002/cssc.202202319
info:eu-repo/semantics/altIdentifier/doi/10.1002/cssc.202202319
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley VCH Verlag
publisher.none.fl_str_mv Wiley VCH Verlag
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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