Push-PullElectronicEffectsin Surface-ActiveSites EnhanceElectrocatalyticOxygenEvolutionon TransitionMetalOxides
Impacto
Scholar |
Otros documentos de la autoría: Garcés Pineda, Felipe Andrés; Nguyen, Huu Chuong; Blasco Ahicart, Marta; García-Tecedor, Miguel; de fez febre, mabel; Tang, PengYi; Arbiol, Jordi; Gimenez, Sixto; Galan-Mascaros, Jose Ramon; Lopez, Nuria
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https://doi.org/10.1002/cssc.202002782 |
Metadatos
Título
Push-PullElectronicEffectsin Surface-ActiveSites EnhanceElectrocatalyticOxygenEvolutionon TransitionMetalOxidesAutoría
Fecha de publicación
2021-01-19Editor
Wiley; Wiley-VCH VerlagISSN
1864-5631; 1864-564XCita bibliográfica
Garcés-Pineda FA, Chuong Nguyën H, Blasco-Ahicart M, García-Tecedor M, de Fez Febré M, Tang PY, Arbiol J, Giménez S, Galán-Mascarós JR, López N. Push-Pull Electronic Effects in Surface-Active Sites Enhance Electrocatalytic Oxygen Evolution on Transition Metal Oxides. ChemSusChem. 2021 Mar 22;14(6):1595-1601. doi: 10.1002/cssc.202002782. Epub 2021 Feb 18. PMID: 33512070.Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Sustainable electrocatalysis of the oxygen evolution reaction (OER) constitutes a major challenge for the realization of green fuels. Oxides based on Ni and Fe in alkaline media have been proposed to avoid using ... [+]
Sustainable electrocatalysis of the oxygen evolution reaction (OER) constitutes a major challenge for the realization of green fuels. Oxides based on Ni and Fe in alkaline media have been proposed to avoid using critical raw materials. However, their ill-defined structures under OER conditions make the identification of key descriptors difficult. Here, we have studied Fe−Ni−Zn spinel oxides, with a well-defined crystal structure, as a platform to obtain general understanding on the key contributions. The OER reaches maximum performance when: (i) Zn is present in the Spinel structure, (ii) very dense, equimolar 1 : 1 : 1 stoichiometry sites appear on the surface as they allow the formation of oxygen vacancies where Zn favors pushing the electronic density that is pulled by the octahedral Fe and tetrahedral Ni redox pair lowering the overpotential. Our work proves cooperative electronic effects on surface active sites as key to design optimum OER electrocatalysts. [-]
Publicado en
ChemSusChem2021,14,1595– 1601Datos relacionados
https://chemistry-europe.onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fcssc.202002782&file=cssc202002782-sup-0001-misc_information.pdfEntidad financiadora
European Union’s Horizon 2020 | Barcelona Supercomputing Center | Generalitat de Catalunya | Ministerio de Economía y Competitividad
Código del proyecto o subvención
info:eu-repo/grantAgreement/EC/H2020/732840 | QCM-2018-3-0012 | 2017 SGR 327 | ENE2017-85087-C3 | SEV-2017-0706
Título del proyecto o subvención
Theoretical studies on catalysis optimization for an Artificial Leaf (A-LEAF)
Derechos de acceso
©2021Wiley-VCHGmbH
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
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