Stability of a pyrimidine-based dye-sensitized TiO2 photoanode in sacrificial electrolytes

7 figures.

Detalles Bibliográficos
Autores: Ansón-Casaos, Alejandro, Martínez-Barón, Carlos, Angoy, Sergio, Hernández-Ferrer, Javier, Benito, Ana M., Maser, Wolfgang K., Blesa, María Jesús
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:10261/286792
Acceso en línea:http://hdl.handle.net/10261/286792
Access Level:acceso abierto
Palabra clave:Water splitting
Photoelectrochemistry
Semiconductor oxides
Dye-sensitizer
Pyrimidine
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spelling Stability of a pyrimidine-based dye-sensitized TiO2 photoanode in sacrificial electrolytesAnsón-Casaos, AlejandroMartínez-Barón, CarlosAngoy, SergioHernández-Ferrer, JavierBenito, Ana M.Maser, Wolfgang K.Blesa, María JesúsWater splittingPhotoelectrochemistrySemiconductor oxidesDye-sensitizerPyrimidine7 figures.Dye sensitization of semiconductor metal oxides aims to extend the light absorption range into the visible region, of particular interest for their use as photoanodes in photoelectrochemical (PEC) water splitting. Organic dyes, however, suffer from limited chemical stability when they are exposed to constant potential and irradiation in aqueous media. Thus, in this work, we evaluate a novel metal-free donor-π-acceptor (D-π-A) dye (AT-Pyri), demonstrating significant sensitization of film photoanodes based on TiO2 nanoparticles. Among a series of tested sacrificial agents, the addition of triethanolamine (TEOA) to the sodium sulphate electrolyte prevents the degradation of AT-Pyri even after several hours of operation. Combining two sacrificial agents (methanol and TEOA) results in a synergetic improvement of the PEC water-splitting activity. Notably, the stabilization of the AT-Pyri photoanode is accompanied by a substantial increase in the photocurrent over the reference TiO2 photoanode, while the associated spikes in transient photocurrent measurements disappear.Financial support from Spanish MICINN/AEI under projects PID2019-104272RB-C51/AEI/10.13039/501100011033 and PID2019-104307GB-I00/AEI/10.13039/501100011033, and the Diputación General de Aragón-European Social Found under projects T03-20R and E47-20R is acknowledged.Peer reviewedElsevier BVMinisterio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)Gobierno de AragónEuropean CommissionAnsón Casaos, Alejandro [0000-0002-3134-8566]Martínez-Barón, Carlos [0000-0001-6132-2060]Angoy, Sergio [0000-0002-6799-413X]Hernández-Ferrer, Javier [0000-0002-6586-6935]Benito, Ana M. [0000-0002-8654-7386]Maser, Wolfgang K. [0000-0003-4253-0758]Blesa, María Jesús [0000-0001-7193-1732]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202320232022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/286792reponame: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/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104272RB-C51info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104307GB-I00Ansón Casaos, Alejandro; Martínez-Barón, Carlos; Angoy, Sergio; Hernández-Ferrer, Javier; Benito, Ana M.; Maser, Wolfgang K.; Blesa, María Jesús; 2023; Stability of a pyrimidine-based dye-sensitized TiO2 photoanode in sacrificial electrolytes [Dataset]; Elsevier BV; http://dx.doi.org/10.1016/j.jelechem.2022.117114http://dx.doi.org/10.1016/j.jelechem.2022.117114Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2867922026-05-22T06:33:51Z
dc.title.none.fl_str_mv Stability of a pyrimidine-based dye-sensitized TiO2 photoanode in sacrificial electrolytes
title Stability of a pyrimidine-based dye-sensitized TiO2 photoanode in sacrificial electrolytes
spellingShingle Stability of a pyrimidine-based dye-sensitized TiO2 photoanode in sacrificial electrolytes
Ansón-Casaos, Alejandro
Water splitting
Photoelectrochemistry
Semiconductor oxides
Dye-sensitizer
Pyrimidine
title_short Stability of a pyrimidine-based dye-sensitized TiO2 photoanode in sacrificial electrolytes
title_full Stability of a pyrimidine-based dye-sensitized TiO2 photoanode in sacrificial electrolytes
title_fullStr Stability of a pyrimidine-based dye-sensitized TiO2 photoanode in sacrificial electrolytes
title_full_unstemmed Stability of a pyrimidine-based dye-sensitized TiO2 photoanode in sacrificial electrolytes
title_sort Stability of a pyrimidine-based dye-sensitized TiO2 photoanode in sacrificial electrolytes
dc.creator.none.fl_str_mv Ansón-Casaos, Alejandro
Martínez-Barón, Carlos
Angoy, Sergio
Hernández-Ferrer, Javier
Benito, Ana M.
Maser, Wolfgang K.
Blesa, María Jesús
author Ansón-Casaos, Alejandro
author_facet Ansón-Casaos, Alejandro
Martínez-Barón, Carlos
Angoy, Sergio
Hernández-Ferrer, Javier
Benito, Ana M.
Maser, Wolfgang K.
Blesa, María Jesús
author_role author
author2 Martínez-Barón, Carlos
Angoy, Sergio
Hernández-Ferrer, Javier
Benito, Ana M.
Maser, Wolfgang K.
Blesa, María Jesús
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Agencia Estatal de Investigación (España)
Gobierno de Aragón
European Commission
Ansón Casaos, Alejandro [0000-0002-3134-8566]
Martínez-Barón, Carlos [0000-0001-6132-2060]
Angoy, Sergio [0000-0002-6799-413X]
Hernández-Ferrer, Javier [0000-0002-6586-6935]
Benito, Ana M. [0000-0002-8654-7386]
Maser, Wolfgang K. [0000-0003-4253-0758]
Blesa, María Jesús [0000-0001-7193-1732]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Water splitting
Photoelectrochemistry
Semiconductor oxides
Dye-sensitizer
Pyrimidine
topic Water splitting
Photoelectrochemistry
Semiconductor oxides
Dye-sensitizer
Pyrimidine
description 7 figures.
publishDate 2022
dc.date.none.fl_str_mv 2022
2023
2023
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/10261/286792
url http://hdl.handle.net/10261/286792
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/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104272RB-C51
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104307GB-I00
Ansón Casaos, Alejandro; Martínez-Barón, Carlos; Angoy, Sergio; Hernández-Ferrer, Javier; Benito, Ana M.; Maser, Wolfgang K.; Blesa, María Jesús; 2023; Stability of a pyrimidine-based dye-sensitized TiO2 photoanode in sacrificial electrolytes [Dataset]; Elsevier BV; http://dx.doi.org/10.1016/j.jelechem.2022.117114
http://dx.doi.org/10.1016/j.jelechem.2022.117114
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier BV
publisher.none.fl_str_mv Elsevier BV
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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