Vapor-phase photocatalytic overall water splitting using hybrid methylammonium copper and lead perovskites

Films or powders of hybrid methylammonium copper halide perovskite exhibit photocatalytic activity for overall water splitting in the vapor phase in the absence of any sacrificial agent, resulting in the generation of H and O, reaching a maximum production rate of 6 µmol H × g cath efficiency. The p...

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Autores: García Fernández, María Teresa, García-Aboal, R., Albero, J., Atienzar, Pedro, García Gómez, Hermenegildo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/226617
Acceso en línea:http://hdl.handle.net/10261/226617
Access Level:acceso abierto
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spelling Vapor-phase photocatalytic overall water splitting using hybrid methylammonium copper and lead perovskitesGarcía Fernández, María TeresaGarcía-Aboal, R.Albero, J.Atienzar, PedroGarcía Gómez, HermenegildoFilms or powders of hybrid methylammonium copper halide perovskite exhibit photocatalytic activity for overall water splitting in the vapor phase in the absence of any sacrificial agent, resulting in the generation of H and O, reaching a maximum production rate of 6 µmol H × g cath efficiency. The photocatalytic activity depends on the composition, degreasing all inorganic CsCuClBr perovskite and other Cl/Br proportions in the methylammonium hybrids. XRD indicates that MACuClBr is stable under irradiation conditions in agreement with the linear H production with the irradiation time. Similar to copper analogue, hybrid methylammonium lead halide perovskites also promote the overall photocatalytic water splitting, but with four times less efficiency than the Cu analogues. The present results show that, although moisture is strongly detrimental to the photovoltaic applications of hybrid perovskites, it is still possible to use these materials as photocatalysts for processes requiring moisture due to the lack of relevance in the photocatalytic processes of interparticle charge migration.Financial support by Fundacion Ramon Areces (XVII Concurso Nacional para la adjudicación de Ayudas a la Investigación en Ciencias de la Vida y de la Materia), Intramural CSIC project 201680I006. Financial support by the Spanish Ministry of Spain (MAT2015-69669-P and Severo Ochoa SEV-2016-0683).Multidisciplinary Digital Publishing InstituteMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2021202120202021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/226617reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2015-69669-PMinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/SEV-2016-0683http://dx.doi.org/10.3390/nano10050960Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2266172026-05-22T06:33:51Z
dc.title.none.fl_str_mv Vapor-phase photocatalytic overall water splitting using hybrid methylammonium copper and lead perovskites
title Vapor-phase photocatalytic overall water splitting using hybrid methylammonium copper and lead perovskites
spellingShingle Vapor-phase photocatalytic overall water splitting using hybrid methylammonium copper and lead perovskites
García Fernández, María Teresa
title_short Vapor-phase photocatalytic overall water splitting using hybrid methylammonium copper and lead perovskites
title_full Vapor-phase photocatalytic overall water splitting using hybrid methylammonium copper and lead perovskites
title_fullStr Vapor-phase photocatalytic overall water splitting using hybrid methylammonium copper and lead perovskites
title_full_unstemmed Vapor-phase photocatalytic overall water splitting using hybrid methylammonium copper and lead perovskites
title_sort Vapor-phase photocatalytic overall water splitting using hybrid methylammonium copper and lead perovskites
dc.creator.none.fl_str_mv García Fernández, María Teresa
García-Aboal, R.
Albero, J.
Atienzar, Pedro
García Gómez, Hermenegildo
author García Fernández, María Teresa
author_facet García Fernández, María Teresa
García-Aboal, R.
Albero, J.
Atienzar, Pedro
García Gómez, Hermenegildo
author_role author
author2 García-Aboal, R.
Albero, J.
Atienzar, Pedro
García Gómez, Hermenegildo
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description Films or powders of hybrid methylammonium copper halide perovskite exhibit photocatalytic activity for overall water splitting in the vapor phase in the absence of any sacrificial agent, resulting in the generation of H and O, reaching a maximum production rate of 6 µmol H × g cath efficiency. The photocatalytic activity depends on the composition, degreasing all inorganic CsCuClBr perovskite and other Cl/Br proportions in the methylammonium hybrids. XRD indicates that MACuClBr is stable under irradiation conditions in agreement with the linear H production with the irradiation time. Similar to copper analogue, hybrid methylammonium lead halide perovskites also promote the overall photocatalytic water splitting, but with four times less efficiency than the Cu analogues. The present results show that, although moisture is strongly detrimental to the photovoltaic applications of hybrid perovskites, it is still possible to use these materials as photocatalysts for processes requiring moisture due to the lack of relevance in the photocatalytic processes of interparticle charge migration.
publishDate 2020
dc.date.none.fl_str_mv 2020
2021
2021
2021
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/10261/226617
url http://hdl.handle.net/10261/226617
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2015-69669-PM
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/SEV-2016-0683
http://dx.doi.org/10.3390/nano10050960
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
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
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