Metal Doping to Enhance the Photoelectrochemical Behavior of LaFeO3 Photocathodes
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http://hdl.handle.net/10045/73712
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DC Field | Value | Language |
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dc.contributor | Grupo de Fotoquímica y Electroquímica de Semiconductores (GFES) | es_ES |
dc.contributor.author | Díez García, María Isabel | - |
dc.contributor.author | Gómez, Roberto | - |
dc.contributor.other | Universidad de Alicante. Departamento de Química Física | es_ES |
dc.contributor.other | Universidad de Alicante. Instituto Universitario de Electroquímica | es_ES |
dc.date.accessioned | 2018-02-21T11:56:49Z | - |
dc.date.available | 2018-02-21T11:56:49Z | - |
dc.date.issued | 2017-06-09 | - |
dc.identifier.citation | ChemSusChem. 2017, 10(11): 2457-2463. doi:10.1002/cssc.201700166 | es_ES |
dc.identifier.issn | 1864-5631 (Print) | - |
dc.identifier.issn | 1864-564X (Online) | - |
dc.identifier.uri | http://hdl.handle.net/10045/73712 | - |
dc.description.abstract | The development of tandem devices for water photosplitting requires the preparation of photocathodic materials based on earth-abundant elements that show long-term stability in aqueous electrolytes. Ternary metal oxides seem to be a viable option, among which perovskites stand out. In this context, transparent and compact LaFeO3 thin-film electrodes have been prepared by a sol–gel process, both undoped and doped with metals (M) such as Mg or Zn. Pristine electrodes support the development of cathodic photocurrents in 0.1 m NaOH aqueous solutions, particularly in the presence of oxygen, with an onset potential as high as 1.4 V versus the reversible hydrogen electrode. Doping with Mg or Zn leads to an important enhancement of the photocurrent, which peaks for a stoichiometry of LaFe0.95M0.05O3 with a sixfold enhancement with respect to the pristine material. Such an improvement is attributed to an increase in both the density and mobility of the majority carriers, although a contribution of surface passivation cannot be excluded. | es_ES |
dc.description.sponsorship | Financial support from the Spanish Ministry of Economy and Competitiveness through project MAT2015-71727-R (FONDOS FEDER) is gratefully acknowledged. | es_ES |
dc.language | eng | es_ES |
dc.publisher | Wiley-VCH Verlag GmbH & Co. KGaA | es_ES |
dc.rights | © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim | es_ES |
dc.subject | Doping | es_ES |
dc.subject | Lanthanum | es_ES |
dc.subject | Photochemistry | es_ES |
dc.subject | Perovskite phases | es_ES |
dc.subject | Water splitting | es_ES |
dc.subject.other | Química Física | es_ES |
dc.title | Metal Doping to Enhance the Photoelectrochemical Behavior of LaFeO3 Photocathodes | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.peerreviewed | si | es_ES |
dc.identifier.doi | 10.1002/cssc.201700166 | - |
dc.relation.publisherversion | http://dx.doi.org/10.1002/cssc.201700166 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//MAT2015-71727-R | - |
Appears in Collections: | INV - GFES - Artículos de Revistas |
Files in This Item:
File | Description | Size | Format | |
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2017_Diez_Gomez_ChemSusChem_final.pdf | Versión final (acceso restringido) | 1,32 MB | Adobe PDF | Open Request a copy |
2017_Diez_Gomez_ChemSusChem_accepted.pdf | Accepted Manuscript (acceso abierto) | 1,59 MB | Adobe PDF | Open Preview |
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