Kinetics of formic acid dehydration on Pt electrodes by time-resolved ATR-SEIRAS
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Campo DC | Valor | Idioma |
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dc.contributor | Electroquímica de Superficies | es_ES |
dc.contributor.author | Pérez-Martínez, Laura | - |
dc.contributor.author | Herrero, Enrique | - |
dc.contributor.author | Cuesta, Angel | - |
dc.contributor.other | Universidad de Alicante. Departamento de Química Física | es_ES |
dc.contributor.other | Universidad de Alicante. Instituto Universitario de Electroquímica | es_ES |
dc.date.accessioned | 2023-02-20T07:59:50Z | - |
dc.date.available | 2023-02-20T07:59:50Z | - |
dc.date.issued | 2023-02-09 | - |
dc.identifier.citation | The Journal of Chemical Physics. 2023, 158: 094705. https://doi.org/10.1063/5.0138791 | es_ES |
dc.identifier.issn | 0021-9606 (Print) | - |
dc.identifier.issn | 1089-7690 (Online) | - |
dc.identifier.uri | http://hdl.handle.net/10045/132162 | - |
dc.description.abstract | The potential dependence of the rate of dehydration of formic acid to adsorbed CO (COad) on Pt at pH 1 has been studied on a polycrystalline Pt surface by time-resolved surface-enhanced infrared absorption spectroscopy in the attenuated total reflection mode (ATR-SEIRAS) with simultaneous recording of current transients after a potential step. A range of formic acid concentrations has been used to obtain a deeper insight into the mechanism of the reaction. Our experiments have allowed us to confirm that the potential dependence of the rate of dehydration has a bell shape, going through a maximum around the potential of zero total charge (pztc) of the most active site. The analysis of the integrated intensity and frequency of the bands corresponding to COL and COB/M shows a progressive population of the active sites on the surface. The observed potential dependence of the rate of formation of COad is consistent with a mechanism in which the reversible electroadsorption of HCOOad is followed by its rate-determining reduction to COad. | es_ES |
dc.description.sponsorship | L.P.-M. acknowledges a doctoral scholarship within the Leverhulme Centre for Doctoral Training in Sustainable Production of Chemicals and Materials (Grant DS-2017-073). | es_ES |
dc.language | eng | es_ES |
dc.publisher | AIP Publishing | es_ES |
dc.rights | © 2023 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | es_ES |
dc.subject | Formic acid dehydration | es_ES |
dc.subject | Adsorbed CO | es_ES |
dc.subject | ATR-SEIRAS | es_ES |
dc.subject | Electrocatalysis | es_ES |
dc.title | Kinetics of formic acid dehydration on Pt electrodes by time-resolved ATR-SEIRAS | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.peerreviewed | si | es_ES |
dc.identifier.doi | 10.1063/5.0138791 | - |
dc.relation.publisherversion | https://doi.org/10.1063/5.0138791 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |
Aparece en las colecciones: | INV - EQSUP - Artículos de Revistas |
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Perez-Martinez_etal_2023_JChemPhys.pdf | 5,75 MB | Adobe PDF | Abrir Vista previa | |
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