Exchange current density, electrocatalytic activity and volcano curve for the hydrogen electrode reaction: theoretical analysis

Autores
Gennero, Maria Rosa; Chialvo, Abel Cesar
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The use of the exchange current density as a parameter for the characterization of the electrocatalytic activity in the volcano curve for the hydrogen electrode reaction was critically analyzed from the point of view of its evaluation and its kinetic interpretation. The methods usually employed in its calculation were first described and then analyzed in order to interpret the different values obtained from the extrapolation of Tafel regions and from the evaluation of the equilibrium polarization resistance. It was demonstrated that the use of Butler-Volmer type equations is inadequate and instead a general expression is proposed, derived in the framework of the Volmer-Heyrovsky-Tafel mechanism. The method proposed for the evaluation of the exchange current density was illustrated with several examples, being the different behaviours analyzed and discussed.
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. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina
Materia
Hydrogen Electrode Reaction
Exchange Current Density
Volcano Curve
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:11336/72375
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Exchange current density, electrocatalytic activity and volcano curve for the hydrogen electrode reaction: theoretical analysisGennero, Maria RosaChialvo, Abel CesarHydrogen Electrode ReactionExchange Current DensityVolcano Curvehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The use of the exchange current density as a parameter for the characterization of the electrocatalytic activity in the volcano curve for the hydrogen electrode reaction was critically analyzed from the point of view of its evaluation and its kinetic interpretation. The methods usually employed in its calculation were first described and then analyzed in order to interpret the different values obtained from the extrapolation of Tafel regions and from the evaluation of the equilibrium polarization resistance. It was demonstrated that the use of Butler-Volmer type equations is inadequate and instead a general expression is proposed, derived in the framework of the Volmer-Heyrovsky-Tafel mechanism. The method proposed for the evaluation of the exchange current density was illustrated with several examples, being the different behaviours analyzed and discussed.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; ArgentinaFil: Chialvo, Abel Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; ArgentinaResearch Trends2012-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/72375Gennero, Maria Rosa; Chialvo, Abel Cesar; Exchange current density, electrocatalytic activity and volcano curve for the hydrogen electrode reaction: theoretical analysis; Research Trends; Current Topics in Electrochemistry; 17; 12-2012; 41-520972-4443CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://researchtrends.net/tia/article_pdf.asp?in=0&vn=17&tid=19&aid=3849info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:47:56Zoai:ri.conicet.gov.ar:11336/72375instacron: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 09:47:56.852CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Exchange current density, electrocatalytic activity and volcano curve for the hydrogen electrode reaction: theoretical analysis
title Exchange current density, electrocatalytic activity and volcano curve for the hydrogen electrode reaction: theoretical analysis
spellingShingle Exchange current density, electrocatalytic activity and volcano curve for the hydrogen electrode reaction: theoretical analysis
Gennero, Maria Rosa
Hydrogen Electrode Reaction
Exchange Current Density
Volcano Curve
title_short Exchange current density, electrocatalytic activity and volcano curve for the hydrogen electrode reaction: theoretical analysis
title_full Exchange current density, electrocatalytic activity and volcano curve for the hydrogen electrode reaction: theoretical analysis
title_fullStr Exchange current density, electrocatalytic activity and volcano curve for the hydrogen electrode reaction: theoretical analysis
title_full_unstemmed Exchange current density, electrocatalytic activity and volcano curve for the hydrogen electrode reaction: theoretical analysis
title_sort Exchange current density, electrocatalytic activity and volcano curve for the hydrogen electrode reaction: theoretical analysis
dc.creator.none.fl_str_mv Gennero, Maria Rosa
Chialvo, Abel Cesar
author Gennero, Maria Rosa
author_facet Gennero, Maria Rosa
Chialvo, Abel Cesar
author_role author
author2 Chialvo, Abel Cesar
author2_role author
dc.subject.none.fl_str_mv Hydrogen Electrode Reaction
Exchange Current Density
Volcano Curve
topic Hydrogen Electrode Reaction
Exchange Current Density
Volcano Curve
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 use of the exchange current density as a parameter for the characterization of the electrocatalytic activity in the volcano curve for the hydrogen electrode reaction was critically analyzed from the point of view of its evaluation and its kinetic interpretation. The methods usually employed in its calculation were first described and then analyzed in order to interpret the different values obtained from the extrapolation of Tafel regions and from the evaluation of the equilibrium polarization resistance. It was demonstrated that the use of Butler-Volmer type equations is inadequate and instead a general expression is proposed, derived in the framework of the Volmer-Heyrovsky-Tafel mechanism. The method proposed for the evaluation of the exchange current density was illustrated with several examples, being the different behaviours analyzed and discussed.
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. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina
description The use of the exchange current density as a parameter for the characterization of the electrocatalytic activity in the volcano curve for the hydrogen electrode reaction was critically analyzed from the point of view of its evaluation and its kinetic interpretation. The methods usually employed in its calculation were first described and then analyzed in order to interpret the different values obtained from the extrapolation of Tafel regions and from the evaluation of the equilibrium polarization resistance. It was demonstrated that the use of Butler-Volmer type equations is inadequate and instead a general expression is proposed, derived in the framework of the Volmer-Heyrovsky-Tafel mechanism. The method proposed for the evaluation of the exchange current density was illustrated with several examples, being the different behaviours analyzed and discussed.
publishDate 2012
dc.date.none.fl_str_mv 2012-12
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/11336/72375
Gennero, Maria Rosa; Chialvo, Abel Cesar; Exchange current density, electrocatalytic activity and volcano curve for the hydrogen electrode reaction: theoretical analysis; Research Trends; Current Topics in Electrochemistry; 17; 12-2012; 41-52
0972-4443
CONICET Digital
CONICET
url http://hdl.handle.net/11336/72375
identifier_str_mv Gennero, Maria Rosa; Chialvo, Abel Cesar; Exchange current density, electrocatalytic activity and volcano curve for the hydrogen electrode reaction: theoretical analysis; Research Trends; Current Topics in Electrochemistry; 17; 12-2012; 41-52
0972-4443
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://researchtrends.net/tia/article_pdf.asp?in=0&vn=17&tid=19&aid=3849
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
application/pdf
dc.publisher.none.fl_str_mv Research Trends
publisher.none.fl_str_mv Research Trends
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 13.13397

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