Push-PullElectronicEffectsin Surface-ActiveSites EnhanceElectrocatalyticOxygenEvolutionon TransitionMetalOxides
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Scholar |
Other documents of the author: 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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Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
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https://doi.org/10.1002/cssc.202002782 |
Metadata
Title
Push-PullElectronicEffectsin Surface-ActiveSites EnhanceElectrocatalyticOxygenEvolutionon TransitionMetalOxidesAuthor (s)
Date
2021-01-19Publisher
Wiley; Wiley-VCH VerlagISSN
1864-5631; 1864-564XBibliographic citation
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.Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/publishedVersionSubject
Abstract
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. [-]
Is part of
ChemSusChem2021,14,1595– 1601Funder Name
European Union’s Horizon 2020 | Barcelona Supercomputing Center | Generalitat de Catalunya | Ministerio de Economía y Competitividad
Project code
info:eu-repo/grantAgreement/EC/H2020/732840 | QCM-2018-3-0012 | 2017 SGR 327 | ENE2017-85087-C3 | SEV-2017-0706
Project title or grant
Theoretical studies on catalysis optimization for an Artificial Leaf (A-LEAF)
Rights
©2021Wiley-VCHGmbH
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info:eu-repo/semantics/restrictedAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
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- INAM_Articles [517]