Kinetic study of the hydrogen oxidation reaction on Pt over the complete overpotential range

Autores
Rau, Maria Sol; Gennero, Maria Rosa; Chialvo, Abel Cesar
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The hydrogen oxidation reaction (hor) was studied on a polycrystalline platinum electrode in H2SO4 and HClO4 solutions at different rotation rates in the overpotentials region between 0.0 and 1.1 V. The experimental polarization curves recorded on steady state are quite similar for both acids. The results were interpreted in the whole overpotentials region on the basis of the Tafel-Heyrovsky-Volmer kinetic mechanism, coupled with a reversible water electroadsorption step. The experimental results were correlated with the equations derived from the resolution of the kinetic mechanism. It was found that a unique set of kinetic parameters can appropriately simulate the polarization curves obtained in both electrolyte solutions and for all the rotation rates, indicating that the proposed mechanism is suitable for the description of the reaction in the whole range of overpotentials. Moreover, the results indicate that the oxyanions do not play a decisive role in the inhibition of the active sites involved in the reaction, being adsorbed OH generated from water electroadsorption the most likely responsible for the behaviour at high overpotentials.
Fil: Rau, Maria Sol. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe; Argentina
Fil: Gennero, Maria Rosa. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe; Argentina
Fil: Chialvo, Abel Cesar. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe; Argentina
Materia
Platino
Oxidacion de Hidrogeno
Altos Sobrepotenciales
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/1939
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/1939
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Kinetic study of the hydrogen oxidation reaction on Pt over the complete overpotential rangeRau, Maria SolGennero, Maria RosaChialvo, Abel CesarPlatinoOxidacion de HidrogenoAltos Sobrepotencialeshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The hydrogen oxidation reaction (hor) was studied on a polycrystalline platinum electrode in H2SO4 and HClO4 solutions at different rotation rates in the overpotentials region between 0.0 and 1.1 V. The experimental polarization curves recorded on steady state are quite similar for both acids. The results were interpreted in the whole overpotentials region on the basis of the Tafel-Heyrovsky-Volmer kinetic mechanism, coupled with a reversible water electroadsorption step. The experimental results were correlated with the equations derived from the resolution of the kinetic mechanism. It was found that a unique set of kinetic parameters can appropriately simulate the polarization curves obtained in both electrolyte solutions and for all the rotation rates, indicating that the proposed mechanism is suitable for the description of the reaction in the whole range of overpotentials. Moreover, the results indicate that the oxyanions do not play a decisive role in the inhibition of the active sites involved in the reaction, being adsorbed OH generated from water electroadsorption the most likely responsible for the behaviour at high overpotentials.Fil: Rau, Maria Sol. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe; ArgentinaFil: Gennero, Maria Rosa. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe; ArgentinaFil: Chialvo, Abel Cesar. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe; ArgentinaElsevier2013-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/1939Rau, Maria Sol; Gennero, Maria Rosa; Chialvo, Abel Cesar; Kinetic study of the hydrogen oxidation reaction on Pt over the complete overpotential range; Elsevier; Journal of Power Sources; 229; 1-5-2013; 210-2150378-7753enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0378775312018228info:eu-repo/semantics/altIdentifier/doi/doi:10.1016/j.jpowsour.2012.11.137info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:11:40Zoai:ri.conicet.gov.ar:11336/1939instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:11:40.335CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Kinetic study of the hydrogen oxidation reaction on Pt over the complete overpotential range
title Kinetic study of the hydrogen oxidation reaction on Pt over the complete overpotential range
spellingShingle Kinetic study of the hydrogen oxidation reaction on Pt over the complete overpotential range
Rau, Maria Sol
Platino
Oxidacion de Hidrogeno
Altos Sobrepotenciales
title_short Kinetic study of the hydrogen oxidation reaction on Pt over the complete overpotential range
title_full Kinetic study of the hydrogen oxidation reaction on Pt over the complete overpotential range
title_fullStr Kinetic study of the hydrogen oxidation reaction on Pt over the complete overpotential range
title_full_unstemmed Kinetic study of the hydrogen oxidation reaction on Pt over the complete overpotential range
title_sort Kinetic study of the hydrogen oxidation reaction on Pt over the complete overpotential range
dc.creator.none.fl_str_mv Rau, Maria Sol
Gennero, Maria Rosa
Chialvo, Abel Cesar
author Rau, Maria Sol
author_facet Rau, Maria Sol
Gennero, Maria Rosa
Chialvo, Abel Cesar
author_role author
author2 Gennero, Maria Rosa
Chialvo, Abel Cesar
author2_role author
author
dc.subject.none.fl_str_mv Platino
Oxidacion de Hidrogeno
Altos Sobrepotenciales
topic Platino
Oxidacion de Hidrogeno
Altos Sobrepotenciales
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The hydrogen oxidation reaction (hor) was studied on a polycrystalline platinum electrode in H2SO4 and HClO4 solutions at different rotation rates in the overpotentials region between 0.0 and 1.1 V. The experimental polarization curves recorded on steady state are quite similar for both acids. The results were interpreted in the whole overpotentials region on the basis of the Tafel-Heyrovsky-Volmer kinetic mechanism, coupled with a reversible water electroadsorption step. The experimental results were correlated with the equations derived from the resolution of the kinetic mechanism. It was found that a unique set of kinetic parameters can appropriately simulate the polarization curves obtained in both electrolyte solutions and for all the rotation rates, indicating that the proposed mechanism is suitable for the description of the reaction in the whole range of overpotentials. Moreover, the results indicate that the oxyanions do not play a decisive role in the inhibition of the active sites involved in the reaction, being adsorbed OH generated from water electroadsorption the most likely responsible for the behaviour at high overpotentials.
Fil: Rau, Maria Sol. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe; Argentina
Fil: Gennero, Maria Rosa. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe; Argentina
Fil: Chialvo, Abel Cesar. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe; Argentina
description The hydrogen oxidation reaction (hor) was studied on a polycrystalline platinum electrode in H2SO4 and HClO4 solutions at different rotation rates in the overpotentials region between 0.0 and 1.1 V. The experimental polarization curves recorded on steady state are quite similar for both acids. The results were interpreted in the whole overpotentials region on the basis of the Tafel-Heyrovsky-Volmer kinetic mechanism, coupled with a reversible water electroadsorption step. The experimental results were correlated with the equations derived from the resolution of the kinetic mechanism. It was found that a unique set of kinetic parameters can appropriately simulate the polarization curves obtained in both electrolyte solutions and for all the rotation rates, indicating that the proposed mechanism is suitable for the description of the reaction in the whole range of overpotentials. Moreover, the results indicate that the oxyanions do not play a decisive role in the inhibition of the active sites involved in the reaction, being adsorbed OH generated from water electroadsorption the most likely responsible for the behaviour at high overpotentials.
publishDate 2013
dc.date.none.fl_str_mv 2013-05-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/1939
Rau, Maria Sol; Gennero, Maria Rosa; Chialvo, Abel Cesar; Kinetic study of the hydrogen oxidation reaction on Pt over the complete overpotential range; Elsevier; Journal of Power Sources; 229; 1-5-2013; 210-215
0378-7753
url http://hdl.handle.net/11336/1939
identifier_str_mv Rau, Maria Sol; Gennero, Maria Rosa; Chialvo, Abel Cesar; Kinetic study of the hydrogen oxidation reaction on Pt over the complete overpotential range; Elsevier; Journal of Power Sources; 229; 1-5-2013; 210-215
0378-7753
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0378775312018228
info:eu-repo/semantics/altIdentifier/doi/doi:10.1016/j.jpowsour.2012.11.137
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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