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Laser-Reduced BiVO4 for Enhanced Photoelectrochemical Water Splitting
dc.contributor.author | Barawi Morán, Mariam | |
dc.contributor.author | Gomez-Mendoza, Miguel | |
dc.contributor.author | Oropeza, Freddy E | |
dc.contributor.author | Gorni , Giulio | |
dc.contributor.author | Villar-Garcia, Ignacio J. | |
dc.contributor.author | Gimenez, Sixto | |
dc.contributor.author | de la Peña O'Shea, Víctor Antonio | |
dc.contributor.author | García-Tecedor, Miguel | |
dc.date.accessioned | 2022-10-21T11:07:06Z | |
dc.date.available | 2022-10-21T11:07:06Z | |
dc.date.issued | 2022-07-27 | |
dc.identifier.citation | 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.2c07451 | ca_CA |
dc.identifier.issn | 1944-8244 | |
dc.identifier.issn | 1944-8252 | |
dc.identifier.uri | http://hdl.handle.net/10234/200481 | |
dc.description.abstract | 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. | ca_CA |
dc.format.extent | 11 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | American Chemical Society | ca_CA |
dc.relation | Materiales híbridos nanoestructurados para la producción fotoelectrocatalitica de combustibles solares | ca_CA |
dc.relation | Tecnologías fotoquímicas para la valorización de CO2 | ca_CA |
dc.relation | Desarrollo de sistemas electrocatalíticos integrados para la síntesis de productos químicos de alto valor añadido | ca_CA |
dc.relation.isPartOf | ACS Applied Materials & Interfaces, 2022, vol. 14, no 29 | ca_CA |
dc.rights | Copyright © American Chemical Society | |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | ca_CA |
dc.subject | photoelectrochemistry | ca_CA |
dc.subject | BiVO4 | ca_CA |
dc.subject | solar fuels | ca_CA |
dc.subject | surface chemistry | ca_CA |
dc.subject | electrochemical impedance spectroscopy | ca_CA |
dc.subject | transient absorption spectroscopy | ca_CA |
dc.title | Laser-Reduced BiVO4 for Enhanced Photoelectrochemical Water Splitting | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | https://doi.org/10.1021/acsami.2c07451 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.relation.publisherVersion | https://pubs.acs.org/doi/full/10.1021/acsami.2c07451 | ca_CA |
dc.description.sponsorship | This work was supported by the national projects funded by MCIN/AEI/10.13039/501100011033 Nhympha (PID2019-106315RB-I00), NovaCO2 (PID2020-118593RB-C22), ECOCAT (PID2020-116093RB-C41), SOL-Future (PLEC2021-007906), and also by the European Union NextGenerationEU/ PRTR. The authors acknowledge the regional project FotoArt-CM (S2018/NMT-4367) funded by Comunidad de Madrid. M.B. is grateful to the Spanish MICINN for the Juan de la Cierva Incorporación grant (IJC2019 – 042430 −I). XAS measurements were performed at the BL22-CLAESS beamline at the ALBA synchrotron with the collaboration of ALBA staff under experiment number 2020094687. The authors also thank Dr. Fernando Picó for his valuable help in acquiring FE-SEM and AFM images and X-ray diffractograms. | |
dc.type.version | info:eu-repo/semantics/acceptedVersion | ca_CA |
project.funder.identifier | http://dx.doi.org/10.13039/501100011033 | ca_CA |
project.funder.identifier | http://dx.doi.org/10.13039/501100004837 | |
project.funder.name | Ministerio de Ciencia, Innovación y Universidades | ca_CA |
project.funder.name | European Union NextGenerationEU/PRTR | ca_CA |
project.funder.name | Comunidad de Madrid | ca_CA |
project.funder.name | Ministerio de Ciencia e Innovación | ca_CA |
oaire.awardNumber | MICIU/ICTI2017-2020/PID2019-106315RB-I00 | ca_CA |
oaire.awardNumber | MICIU/ICTI2017-2020/PID2020-118593RB-C22 | ca_CA |
oaire.awardNumber | MICIU/ICTI2017-2020/PID2020-116093RB-C41 | ca_CA |
oaire.awardNumber | PLEC2021-007906 | ca_CA |
oaire.awardNumber | S2018/NMT-4367 | ca_CA |
oaire.awardNumber | IJC2019-042430-I | ca_CA |
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