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dc.contributor.author
Grumelli, Doris Elda
dc.contributor.author
Wiegmann, Tim
dc.contributor.author
Barja, Sara
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Reikowski, Finn
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Maroun, Fouad
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Allongue, Philippe
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Balajka, Jan
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Parkinson, Gareth S.
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Diebold, Ulrike
dc.contributor.author
Kern, Klaus
dc.contributor.author
Magnussen, Olaf M.
dc.date.available
2021-09-22T11:35:58Z
dc.date.issued
2020-12-01
dc.identifier.citation
Grumelli, Doris Elda; Wiegmann, Tim; Barja, Sara; Reikowski, Finn; Maroun, Fouad; et al.; Electrochemical stability of the reconstructed Fe3O4(001) surface; Wiley-VCH; Angewandte Chemie; 132; 49; 1-12-2020; 22088-22092
dc.identifier.issn
0044-8249
dc.identifier.uri
http://hdl.handle.net/11336/141093
dc.description.abstract
Establishing the atomic-scale structure of metaloxide surfaces during electrochemical reactions is a key step to modeling this important class of electrocatalysts. Here, we demonstrate that the characteristic (p2p2)R458 surface reconstruction formed on (001)-oriented magnetite single crystals is maintained after immersion in 0.1 M NaOH at 0.20 V vs. Ag/AgCl and we investigate its dependence on the electrode potential. We follow the evolution of the surface using in situ and operando surface X-ray diffraction from the onset of hydrogen evolution, to potentials deep in the oxygen evolution reaction (OER) regime. The reconstruction remains stable for hours between 0.20 and 0.60 V and, surprisingly, is still present at anodic current densities of up to 10 mA cm2 and strongly affects the OER kinetics. We attribute this to a stabilization of the Fe3O4 bulk by the reconstructed surface. At more negative potentials, a gradual and largely irreversible lifting of the reconstruction is observed due to the onset of oxide reduction.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley-VCH
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ELECTROCATALYSIS
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MAGNETITE SINGLE CRYSTALS
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OPERANDO X-RAY SURFACE DIFFRACTION
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OXIDE SURFACE STRUCTURES
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Físico-Química, Ciencia de los Polímeros, Electroquímica
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Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Electrochemical stability of the reconstructed Fe3O4(001) surface
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-09-06T17:24:38Z
dc.identifier.eissn
1521-3757
dc.journal.volume
132
dc.journal.number
49
dc.journal.pagination
22088-22092
dc.journal.pais
Alemania
dc.journal.ciudad
Weinheim
dc.description.fil
Fil: Grumelli, Doris Elda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
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Fil: Wiegmann, Tim. Christian Albrechts Universitat Zu Kiel.; Alemania
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Fil: Barja, Sara. University of the Basque Country. Centro de Fsica de Materiales. Departamento de Fsica de Materiales; España
dc.description.fil
Fil: Reikowski, Finn. Christian Albrechts Universitat Zu Kiel.; Alemania
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Fil: Maroun, Fouad. Centre National de la Recherche Scientifique; Francia. Laboratoire de Physique de la Matière Condensée; Francia
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Fil: Allongue, Philippe. Centre National de la Recherche Scientifique; Francia. Laboratoire de Physique de la Matière Condensée; Francia
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Fil: Balajka, Jan. Technical University of Viena. Institute of Applied Physics; Austria
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Fil: Parkinson, Gareth S.. Technical University of Viena. Institute of Applied Physics; Austria
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Fil: Diebold, Ulrike. Technical University of Viena. Institute of Applied Physics; Austria
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Fil: Kern, Klaus. Max Planck Institute for Solid State Research
Stuttgart; Alemania
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Fil: Magnussen, Olaf M.. Christian Albrechts Universitat Zu Kiel.; Alemania
dc.journal.title
Angewandte Chemie
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/ange.202008785
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1002/ange.202008785
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