Analysis of the applicability of short time chronoamperometry for the kinetic study of the hydrogen oxidation reaction

Autores
Marozzi, Carlos A.; Gennero, Maria Rosa; Chialvo, Abel Cesar
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This work analyses the applicability of the chronoamperometric method for the evaluation of the kinetic parameters of the hydrogen oxidation reaction. It consists in the application of an overpotential step and the subsequent plot of the current density response against the square root of time. The extrapolation of the resulting straight line at short times is assigned to the kinetic current density at such overpotential. Then, from the polarization curve, the parameters exchange current density and Tafel slope are evaluated. This method is only strictly valid for simple reactions without adsorbed intermediates. Therefore, a complete analysis that takes into account all the phenomena involved, including the effect of the pseudocapacitive current due to the adsorbed hydrogen, is carried out. The results obtained confirm the inapplicability of the chronoamperometric method for the kinetic study of the hydrogen oxidation reaction.
Fil: Marozzi, Carlos A.. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina
Fil: Gennero, Maria Rosa. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; 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 Santa Fe; Argentina
Materia
Chronoamperometry
Hydrogen Oxidation Reaction
Kinetic Parameters
Pseudocapacitive Current
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/6391
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/6391
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Analysis of the applicability of short time chronoamperometry for the kinetic study of the hydrogen oxidation reactionMarozzi, Carlos A.Gennero, Maria RosaChialvo, Abel CesarChronoamperometryHydrogen Oxidation ReactionKinetic ParametersPseudocapacitive Currenthttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2This work analyses the applicability of the chronoamperometric method for the evaluation of the kinetic parameters of the hydrogen oxidation reaction. It consists in the application of an overpotential step and the subsequent plot of the current density response against the square root of time. The extrapolation of the resulting straight line at short times is assigned to the kinetic current density at such overpotential. Then, from the polarization curve, the parameters exchange current density and Tafel slope are evaluated. This method is only strictly valid for simple reactions without adsorbed intermediates. Therefore, a complete analysis that takes into account all the phenomena involved, including the effect of the pseudocapacitive current due to the adsorbed hydrogen, is carried out. The results obtained confirm the inapplicability of the chronoamperometric method for the kinetic study of the hydrogen oxidation reaction.Fil: Marozzi, Carlos A.. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; ArgentinaFil: Gennero, Maria Rosa. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; 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 Santa Fe; ArgentinaElsevier2013-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/6391Marozzi, Carlos A.; Gennero, Maria Rosa; Chialvo, Abel Cesar; Analysis of the applicability of short time chronoamperometry for the kinetic study of the hydrogen oxidation reaction; Elsevier; Electrochimica Acta; 112; 9-2013; 68-730013-4686enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0013468613015971info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2013.08.068info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:03:44Zoai:ri.conicet.gov.ar:11336/6391instacron: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:34982025-09-03 10:03:44.71CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Analysis of the applicability of short time chronoamperometry for the kinetic study of the hydrogen oxidation reaction
title Analysis of the applicability of short time chronoamperometry for the kinetic study of the hydrogen oxidation reaction
spellingShingle Analysis of the applicability of short time chronoamperometry for the kinetic study of the hydrogen oxidation reaction
Marozzi, Carlos A.
Chronoamperometry
Hydrogen Oxidation Reaction
Kinetic Parameters
Pseudocapacitive Current
title_short Analysis of the applicability of short time chronoamperometry for the kinetic study of the hydrogen oxidation reaction
title_full Analysis of the applicability of short time chronoamperometry for the kinetic study of the hydrogen oxidation reaction
title_fullStr Analysis of the applicability of short time chronoamperometry for the kinetic study of the hydrogen oxidation reaction
title_full_unstemmed Analysis of the applicability of short time chronoamperometry for the kinetic study of the hydrogen oxidation reaction
title_sort Analysis of the applicability of short time chronoamperometry for the kinetic study of the hydrogen oxidation reaction
dc.creator.none.fl_str_mv Marozzi, Carlos A.
Gennero, Maria Rosa
Chialvo, Abel Cesar
author Marozzi, Carlos A.
author_facet Marozzi, Carlos A.
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 Chronoamperometry
Hydrogen Oxidation Reaction
Kinetic Parameters
Pseudocapacitive Current
topic Chronoamperometry
Hydrogen Oxidation Reaction
Kinetic Parameters
Pseudocapacitive Current
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv This work analyses the applicability of the chronoamperometric method for the evaluation of the kinetic parameters of the hydrogen oxidation reaction. It consists in the application of an overpotential step and the subsequent plot of the current density response against the square root of time. The extrapolation of the resulting straight line at short times is assigned to the kinetic current density at such overpotential. Then, from the polarization curve, the parameters exchange current density and Tafel slope are evaluated. This method is only strictly valid for simple reactions without adsorbed intermediates. Therefore, a complete analysis that takes into account all the phenomena involved, including the effect of the pseudocapacitive current due to the adsorbed hydrogen, is carried out. The results obtained confirm the inapplicability of the chronoamperometric method for the kinetic study of the hydrogen oxidation reaction.
Fil: Marozzi, Carlos A.. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina
Fil: Gennero, Maria Rosa. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; 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 Santa Fe; Argentina
description This work analyses the applicability of the chronoamperometric method for the evaluation of the kinetic parameters of the hydrogen oxidation reaction. It consists in the application of an overpotential step and the subsequent plot of the current density response against the square root of time. The extrapolation of the resulting straight line at short times is assigned to the kinetic current density at such overpotential. Then, from the polarization curve, the parameters exchange current density and Tafel slope are evaluated. This method is only strictly valid for simple reactions without adsorbed intermediates. Therefore, a complete analysis that takes into account all the phenomena involved, including the effect of the pseudocapacitive current due to the adsorbed hydrogen, is carried out. The results obtained confirm the inapplicability of the chronoamperometric method for the kinetic study of the hydrogen oxidation reaction.
publishDate 2013
dc.date.none.fl_str_mv 2013-09
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/11336/6391
Marozzi, Carlos A.; Gennero, Maria Rosa; Chialvo, Abel Cesar; Analysis of the applicability of short time chronoamperometry for the kinetic study of the hydrogen oxidation reaction; Elsevier; Electrochimica Acta; 112; 9-2013; 68-73
0013-4686
url http://hdl.handle.net/11336/6391
identifier_str_mv Marozzi, Carlos A.; Gennero, Maria Rosa; Chialvo, Abel Cesar; Analysis of the applicability of short time chronoamperometry for the kinetic study of the hydrogen oxidation reaction; Elsevier; Electrochimica Acta; 112; 9-2013; 68-73
0013-4686
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/S0013468613015971
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2013.08.068
info:eu-repo/semantics/altIdentifier/doi/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
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
_version_ 1842269817057312768
score 13.13397

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