Analysis of the hydrogen electrode reaction mechanism in thinlayer cells. 2: Study of hydrogen evolution on microelectrodes by scanning electrochemical microscopy

Autores
Bonazza, Horacio; Vega, Leonardo Daniel; Fernandez, Jose Luis
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This work presents an updated equation for analyzing experimental dependences of the tip current (iT) on the tip potential (ET) and the tip-substrate distance (d) by scanning electrochemical microscopy (SECM). The model includes the contribution of a general thin layer cell (TLC) with no aprioristic restrictions about the reaction mechanism. The iT(ET, d) dependence for a particular reaction is governed both by the microelectrode response (at large d values) and by the TLC response (more important at small d values) that result from solving the particular reaction mechanism. This equation was applied for studying the mechanism and for quantifying the elementary kinetic parameters of the hydrogen evolution reaction (her) on platinum and gold microelectrode tips. A dependence of the TLC current on ET previously developed for the her operating through the Volmer–Heyrovsky–Tafel (VHT) mechanism was included in the model to correlate experimental iT(ET, d) curves measured on these two metals. The transition from the VT to the VH route was clearly detected on both metals under conditions of high mass transport rates.
Fil: Bonazza, Horacio. 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: Vega, Leonardo Daniel. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina
Fil: Fernandez, Jose Luis. 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
Hydrogen Evolution Reaction
Scanning Electrochemical Microscopy
Microelectrodes
Kinetic Analysis
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:11336/31266
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/31266
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Analysis of the hydrogen electrode reaction mechanism in thinlayer cells. 2: Study of hydrogen evolution on microelectrodes by scanning electrochemical microscopyBonazza, HoracioVega, Leonardo DanielFernandez, Jose LuisHydrogen Evolution ReactionScanning Electrochemical MicroscopyMicroelectrodesKinetic Analysishttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1This work presents an updated equation for analyzing experimental dependences of the tip current (iT) on the tip potential (ET) and the tip-substrate distance (d) by scanning electrochemical microscopy (SECM). The model includes the contribution of a general thin layer cell (TLC) with no aprioristic restrictions about the reaction mechanism. The iT(ET, d) dependence for a particular reaction is governed both by the microelectrode response (at large d values) and by the TLC response (more important at small d values) that result from solving the particular reaction mechanism. This equation was applied for studying the mechanism and for quantifying the elementary kinetic parameters of the hydrogen evolution reaction (her) on platinum and gold microelectrode tips. A dependence of the TLC current on ET previously developed for the her operating through the Volmer–Heyrovsky–Tafel (VHT) mechanism was included in the model to correlate experimental iT(ET, d) curves measured on these two metals. The transition from the VT to the VH route was clearly detected on both metals under conditions of high mass transport rates.Fil: Bonazza, Horacio. 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: Vega, Leonardo Daniel. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; ArgentinaFil: Fernandez, Jose Luis. 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; ArgentinaElsevier2013-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/31266Fernandez, Jose Luis; Vega, Leonardo Daniel; Bonazza, Horacio; Analysis of the hydrogen electrode reaction mechanism in thinlayer cells. 2: Study of hydrogen evolution on microelectrodes by scanning electrochemical microscopy; Elsevier; Journal of Electroanalytical Chemistry; 713; 12-2013; 9-161572-6657CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1572665713005353info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jelechem.2013.11.027info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:09:17Zoai:ri.conicet.gov.ar:11336/31266instacron: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 10:09:18.263CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Analysis of the hydrogen electrode reaction mechanism in thinlayer cells. 2: Study of hydrogen evolution on microelectrodes by scanning electrochemical microscopy
title Analysis of the hydrogen electrode reaction mechanism in thinlayer cells. 2: Study of hydrogen evolution on microelectrodes by scanning electrochemical microscopy
spellingShingle Analysis of the hydrogen electrode reaction mechanism in thinlayer cells. 2: Study of hydrogen evolution on microelectrodes by scanning electrochemical microscopy
Bonazza, Horacio
Hydrogen Evolution Reaction
Scanning Electrochemical Microscopy
Microelectrodes
Kinetic Analysis
title_short Analysis of the hydrogen electrode reaction mechanism in thinlayer cells. 2: Study of hydrogen evolution on microelectrodes by scanning electrochemical microscopy
title_full Analysis of the hydrogen electrode reaction mechanism in thinlayer cells. 2: Study of hydrogen evolution on microelectrodes by scanning electrochemical microscopy
title_fullStr Analysis of the hydrogen electrode reaction mechanism in thinlayer cells. 2: Study of hydrogen evolution on microelectrodes by scanning electrochemical microscopy
title_full_unstemmed Analysis of the hydrogen electrode reaction mechanism in thinlayer cells. 2: Study of hydrogen evolution on microelectrodes by scanning electrochemical microscopy
title_sort Analysis of the hydrogen electrode reaction mechanism in thinlayer cells. 2: Study of hydrogen evolution on microelectrodes by scanning electrochemical microscopy
dc.creator.none.fl_str_mv Bonazza, Horacio
Vega, Leonardo Daniel
Fernandez, Jose Luis
author Bonazza, Horacio
author_facet Bonazza, Horacio
Vega, Leonardo Daniel
Fernandez, Jose Luis
author_role author
author2 Vega, Leonardo Daniel
Fernandez, Jose Luis
author2_role author
author
dc.subject.none.fl_str_mv Hydrogen Evolution Reaction
Scanning Electrochemical Microscopy
Microelectrodes
Kinetic Analysis
topic Hydrogen Evolution Reaction
Scanning Electrochemical Microscopy
Microelectrodes
Kinetic Analysis
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This work presents an updated equation for analyzing experimental dependences of the tip current (iT) on the tip potential (ET) and the tip-substrate distance (d) by scanning electrochemical microscopy (SECM). The model includes the contribution of a general thin layer cell (TLC) with no aprioristic restrictions about the reaction mechanism. The iT(ET, d) dependence for a particular reaction is governed both by the microelectrode response (at large d values) and by the TLC response (more important at small d values) that result from solving the particular reaction mechanism. This equation was applied for studying the mechanism and for quantifying the elementary kinetic parameters of the hydrogen evolution reaction (her) on platinum and gold microelectrode tips. A dependence of the TLC current on ET previously developed for the her operating through the Volmer–Heyrovsky–Tafel (VHT) mechanism was included in the model to correlate experimental iT(ET, d) curves measured on these two metals. The transition from the VT to the VH route was clearly detected on both metals under conditions of high mass transport rates.
Fil: Bonazza, Horacio. 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: Vega, Leonardo Daniel. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina
Fil: Fernandez, Jose Luis. 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 This work presents an updated equation for analyzing experimental dependences of the tip current (iT) on the tip potential (ET) and the tip-substrate distance (d) by scanning electrochemical microscopy (SECM). The model includes the contribution of a general thin layer cell (TLC) with no aprioristic restrictions about the reaction mechanism. The iT(ET, d) dependence for a particular reaction is governed both by the microelectrode response (at large d values) and by the TLC response (more important at small d values) that result from solving the particular reaction mechanism. This equation was applied for studying the mechanism and for quantifying the elementary kinetic parameters of the hydrogen evolution reaction (her) on platinum and gold microelectrode tips. A dependence of the TLC current on ET previously developed for the her operating through the Volmer–Heyrovsky–Tafel (VHT) mechanism was included in the model to correlate experimental iT(ET, d) curves measured on these two metals. The transition from the VT to the VH route was clearly detected on both metals under conditions of high mass transport rates.
publishDate 2013
dc.date.none.fl_str_mv 2013-12
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/11336/31266
Fernandez, Jose Luis; Vega, Leonardo Daniel; Bonazza, Horacio; Analysis of the hydrogen electrode reaction mechanism in thinlayer cells. 2: Study of hydrogen evolution on microelectrodes by scanning electrochemical microscopy; Elsevier; Journal of Electroanalytical Chemistry; 713; 12-2013; 9-16
1572-6657
CONICET Digital
CONICET
url http://hdl.handle.net/11336/31266
identifier_str_mv Fernandez, Jose Luis; Vega, Leonardo Daniel; Bonazza, Horacio; Analysis of the hydrogen electrode reaction mechanism in thinlayer cells. 2: Study of hydrogen evolution on microelectrodes by scanning electrochemical microscopy; Elsevier; Journal of Electroanalytical Chemistry; 713; 12-2013; 9-16
1572-6657
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://www.sciencedirect.com/science/article/pii/S1572665713005353
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jelechem.2013.11.027
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
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
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score 13.13397

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