Laser-Reduced BiVO4 for Enhanced Photoelectrochemical Water Splitting
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Otros documentos de la autoría: Barawi Morán, Mariam; Gomez-Mendoza, Miguel; Oropeza, Freddy E; Gorni , Giulio; Villar-Garcia, Ignacio J.; Gimenez, Sixto; de la Peña O'Shea, Víctor Antonio; García-Tecedor, Miguel
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
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INVESTIGACIONMetadatos
Título
Laser-Reduced BiVO4 for Enhanced Photoelectrochemical Water SplittingAutoría
Fecha de publicación
2022-07-27Editor
American Chemical SocietyISSN
1944-8244; 1944-8252Cita bibliográfica
Barawi, M.; Gomez-Mendoza, M.; Oropeza, F. E.; Gorni, G.; Villar-Garcia, I. J.; Giménez, S.; De La Penã O’Shea, V. A.; García-Tecedor, M. Laser-Reduced BiVO4 for Enhanced Photoelectrochemical Water Splitting. ACS Appl. Mater. Interfaces 2022, 2022 14 (29), 33200-33210, DOI: 10.1021/acsami.2c07451Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://pubs.acs.org/doi/full/10.1021/acsami.2c07451Versión
info:eu-repo/semantics/acceptedVersionPalabras clave / Materias
Resumen
The present study proposes a laser irradiation method to superficially reduce BiVO4 photoelectrodes and boost their water oxidation reaction performance. The origin of this enhanced performance toward oxygen evolution ... [+]
The present study proposes a laser irradiation method to superficially reduce BiVO4 photoelectrodes and boost their water oxidation reaction performance. The origin of this enhanced performance toward oxygen evolution reaction (OER) was studied using a combination of a suite of structural, chemical, and mechanistic advanced characterization techniques including X-ray photoelectron (XPS), X-ray absorption spectroscopy (XAS), electrochemical impedance spectroscopy (EIS), and transient absorption spectroscopy (TAS), among others. We found that the reduction of the material is localized at the surface of the sample and that this effect creates effective n-type doping and a shift to more favorable energy band positions toward water oxidation. This thermodynamic effect, together with the change in sample morphology to larger and denser domains, results in an extended lifetime of the photogenerated carriers and improved charge extraction. In addition, the stability of the reduced sample in water was also confirmed. All of these effects result in a two-fold increase in the photocurrent density of the laser-treated samples. [-]
Publicado en
ACS Applied Materials & Interfaces, 2022, vol. 14, no 29Entidad financiadora
Ministerio de Ciencia, Innovación y Universidades | European Union NextGenerationEU/PRTR | Comunidad de Madrid | Ministerio de Ciencia e Innovación
Identificador de la entidad financiadora
http://dx.doi.org/10.13039/501100011033 | http://dx.doi.org/10.13039/501100004837
Código del proyecto o subvención
MICIU/ICTI2017-2020/PID2019-106315RB-I00 | MICIU/ICTI2017-2020/PID2020-118593RB-C22 | MICIU/ICTI2017-2020/PID2020-116093RB-C41 | PLEC2021-007906 | S2018/NMT-4367 | IJC2019-042430-I
Título del proyecto o subvención
Materiales híbridos nanoestructurados para la producción fotoelectrocatalitica de combustibles solares | Tecnologías fotoquímicas para la valorización de CO2 | Desarrollo de sistemas electrocatalíticos integrados para la síntesis de productos químicos de alto valor añadido
Derechos de acceso
Copyright © American Chemical Society
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/openAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/openAccess
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- INAM_Articles [521]