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dc.contributor.author
Enggar Wibowo, Romualdus
dc.contributor.author
Garcia Diez, Raul
dc.contributor.author
Bystron, Tomas
dc.contributor.author
Prokop, Martin
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Van der Merwe, Marianne
dc.contributor.author
Arce, Mauricio Damián
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dc.contributor.author
Jiménez, Catalina E.
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Hsieh, Tzung En
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Frisch, Johannes
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Steigert, Alexander
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Favaro, Marco
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Starr, David E.
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Wilks, Regan G.
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Bouzek, Karel
dc.contributor.author
Bär, Marcus
dc.date.available
2024-05-17T10:25:14Z
dc.date.issued
2023-10
dc.identifier.citation
Enggar Wibowo, Romualdus; Garcia Diez, Raul ; Bystron, Tomas; Prokop, Martin; Van der Merwe, Marianne; et al.; Oxidation of Aqueous Phosphorous Acid Electrolyte in Contact with Pt Studied by X-ray Photoemission Spectroscopy; American Chemical Society; ACS Applied Materials and Interfaces; 15; 44; 10-2023; 51989-51999
dc.identifier.issn
1944-8252
dc.identifier.uri
http://hdl.handle.net/11336/235561
dc.description.abstract
The oxidation of the aqueous H3PO3 in contact with Pt was investigated for a fundamental understanding of the Pt/aqueous H3PO3 interaction with the goal of providing a comprehensive basis for the further optimization of high-temperature polymer electrolyte membrane fuel cells (HT-PEMFCs). Ion-exchange chromatography (IEC) experiments suggested that in ambient conditions, Pt catalyzes H3PO3 oxidation to H3PO4 with H2O. X-ray photoelectron spectroscopy (XPS) on different substrates, including Au and Pt, previously treated in H3PO3 solutions was conducted to determine the catalytic abilities of selected metals toward H3PO3 oxidation. In situ ambient pressure hard X-ray photoelectron spectroscopy (AP-HAXPES) combined with the “dip-and-pull” method was performed to investigate the state of H3PO3 at the Pt|H3PO3 interface and in the bulk solution. It was shown that whereas H3PO3 remains stable in the bulk solution, the catalyzed oxidation of H3PO3 by H2O to H3PO4 accompanied by H2 generation occurs in contact with the Pt surface. This catalytic process likely involves H3PO3 adsorption at the Pt surface in a highly reactive pyramidal tautomeric configuration.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Chemical Society
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
Pt/H3PO3 INTERACTION
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AQUEOUS H3PO3 OXIDATION
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ION-EXCHANGE CHROMATOGRAPHY
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IN SITU AP-HAXPES
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Pt|AQUEOUS H3PO3 INTERFACE
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HT-PEMFCS
dc.subject.classification
Físico-Química, Ciencia de los Polímeros, Electroquímica
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dc.subject.classification
Ciencias Químicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Oxidation of Aqueous Phosphorous Acid Electrolyte in Contact with Pt Studied by X-ray Photoemission Spectroscopy
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-03-25T12:22:19Z
dc.journal.volume
15
dc.journal.number
44
dc.journal.pagination
51989-51999
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Enggar Wibowo, Romualdus. No especifíca;
dc.description.fil
Fil: Garcia Diez, Raul. No especifíca;
dc.description.fil
Fil: Bystron, Tomas. University of Chemistry and Technology Prague; República Checa
dc.description.fil
Fil: Prokop, Martin. University of Chemistry and Technology Prague; República Checa
dc.description.fil
Fil: Van der Merwe, Marianne. No especifíca;
dc.description.fil
Fil: Arce, Mauricio Damián. Comision Nacional de Energia Atomica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia.; Argentina
dc.description.fil
Fil: Jiménez, Catalina E.. No especifíca;
dc.description.fil
Fil: Hsieh, Tzung En. No especifíca;
dc.description.fil
Fil: Frisch, Johannes. No especifíca;
dc.description.fil
Fil: Steigert, Alexander. No especifíca;
dc.description.fil
Fil: Favaro, Marco. No especifíca;
dc.description.fil
Fil: Starr, David E.. No especifíca;
dc.description.fil
Fil: Wilks, Regan G.. No especifíca;
dc.description.fil
Fil: Bouzek, Karel. University of Chemistry and Technology Prague; República Checa
dc.description.fil
Fil: Bär, Marcus. Universitat Erlangen Nuremberg; Alemania
dc.journal.title
ACS Applied Materials and Interfaces
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1021/acsami.3c12557
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