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dc.contributor.author
Montero, María de Los Angeles
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Luque, Gisela Carina
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Gennero, Maria Rosa
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Chialvo, Abel Cesar
dc.date.available
2021-03-10T13:35:19Z
dc.date.issued
2020-10
dc.identifier.citation
Montero, María de Los Angeles; Luque, Gisela Carina; Gennero, Maria Rosa; Chialvo, Abel Cesar; Kinetic evaluation of the formic acid electrooxidation on steady state on palladium using a flow cell; Elsevier Science SA; Journal of Electroanalytical Chemistry; 879; 10-2020
dc.identifier.issn
1572-6657
dc.identifier.uri
http://hdl.handle.net/11336/127949
dc.description.abstract
The HCOOH electrooxidation reaction (FAO) is studied on palladium in a 0.5 M HCOOH +0.5 M H2SO4 solution. The steady state current - potential curve is measured in the potential region 0.1 < E (vs. RHE) / V < 0.6 by chronoamperometry. Open circuit potential transient is also recorded as well as potentiodynamic sweeps at 0.01 V s−1. The absence of adsorbed CO is confirmed by voltammetric stripping, in agreement with published spectroscopic measurements. On this basis, a kinetic mechanism is proposed, involving adsorbed hydrogen and formate as reaction intermediates, which can also describe the spontaneous HCOOH dehydrogenation reaction at open circuit. The mechanism involves two reaction pathways. One where current is generated entirely by the oxidation of Had, which explains the electrocatalytic activity of palladium at low potentials. The other pathway, which prevails at high potentials, includes the electrooxidation of both, Had and HCOOad, reaction intermediates. The corresponding theoretical expression for the current density - potential dependence on steady state is derived, which accurately correlates the experimental results.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science SA
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
FORMIC ACID ELECTROOXIDATION
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KINETIC MECHANISM
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PALLADIUM ELECTRODE
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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
Kinetic evaluation of the formic acid electrooxidation on steady state on palladium using a flow cell
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-12-22T15:44:06Z
dc.journal.volume
879
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Montero, María de Los Angeles. Universidad Nacional del Litoral. Instituto de Química Aplicada del Litoral. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Química Aplicada del Litoral.; Argentina
dc.description.fil
Fil: Luque, Gisela Carina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.description.fil
Fil: Gennero, Maria Rosa. Universidad Nacional del Litoral. Instituto de Química Aplicada del Litoral. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Química Aplicada del Litoral.; Argentina
dc.description.fil
Fil: Chialvo, Abel Cesar. Universidad Nacional del Litoral. Instituto de Química Aplicada del Litoral. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Química Aplicada del Litoral.; Argentina
dc.journal.title
Journal of Electroanalytical Chemistry
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S1572665720310055
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jelechem.2020.114777
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