Hydrogen evolution reaction on a smooth iron electrode in alkaline solution at different temperatures

Autores
Gennero, Maria Rosa; Chialvo, Abel Cesar
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The hydrogen evolution reaction (HER) has been studied on a rotating polycrystalline smooth iron disc electrode in the temperature range 20 ≤ T/°C ≤ 60 in 2 M NaOH. It has been demonstrated that only for |η| ≥0.1 V can the polarisation curve be considered as that corresponding to the HER, due to the corrosion process that takes place at low overpotentials. The experimental results were adequately correlated by the Vollmer-Heyrovsky-Tafel mechanism with a Langmuirian adsorption, considering αv ≠ αH. On this basis, two sets of kinetic parameters were found for each of the three elementary steps and the corresponding apparent activation energies were also evaluated. These results allowed the calculation of the experimental kinetic parameters, Tafel slope and extrapolated exchange current density, for all the temperatures studied.
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
Materia
HYDROGEN EVOLUTION REACTION
IRON ELECTRODE
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:11336/100007
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/100007
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Hydrogen evolution reaction on a smooth iron electrode in alkaline solution at different temperaturesGennero, Maria RosaChialvo, Abel CesarHYDROGEN EVOLUTION REACTIONIRON ELECTRODEKINETIC ANALYSIShttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The hydrogen evolution reaction (HER) has been studied on a rotating polycrystalline smooth iron disc electrode in the temperature range 20 ≤ T/°C ≤ 60 in 2 M NaOH. It has been demonstrated that only for |η| ≥0.1 V can the polarisation curve be considered as that corresponding to the HER, due to the corrosion process that takes place at low overpotentials. The experimental results were adequately correlated by the Vollmer-Heyrovsky-Tafel mechanism with a Langmuirian adsorption, considering αv ≠ αH. On this basis, two sets of kinetic parameters were found for each of the three elementary steps and the corresponding apparent activation energies were also evaluated. These results allowed the calculation of the experimental kinetic parameters, Tafel slope and extrapolated exchange current density, for all the temperatures studied.Fil: 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; ArgentinaRoyal Society of Chemistry2001-05info: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/11336/100007Gennero, Maria Rosa; Chialvo, Abel Cesar; Hydrogen evolution reaction on a smooth iron electrode in alkaline solution at different temperatures; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 3; 15; 5-2001; 3180-31841463-9076CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1039/b102777hinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:57:19Zoai:ri.conicet.gov.ar:11336/100007instacron: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 09:57:19.294CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Hydrogen evolution reaction on a smooth iron electrode in alkaline solution at different temperatures
title Hydrogen evolution reaction on a smooth iron electrode in alkaline solution at different temperatures
spellingShingle Hydrogen evolution reaction on a smooth iron electrode in alkaline solution at different temperatures
Gennero, Maria Rosa
HYDROGEN EVOLUTION REACTION
IRON ELECTRODE
KINETIC ANALYSIS
title_short Hydrogen evolution reaction on a smooth iron electrode in alkaline solution at different temperatures
title_full Hydrogen evolution reaction on a smooth iron electrode in alkaline solution at different temperatures
title_fullStr Hydrogen evolution reaction on a smooth iron electrode in alkaline solution at different temperatures
title_full_unstemmed Hydrogen evolution reaction on a smooth iron electrode in alkaline solution at different temperatures
title_sort Hydrogen evolution reaction on a smooth iron electrode in alkaline solution at different temperatures
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 EVOLUTION REACTION
IRON ELECTRODE
KINETIC ANALYSIS
topic HYDROGEN EVOLUTION REACTION
IRON ELECTRODE
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 The hydrogen evolution reaction (HER) has been studied on a rotating polycrystalline smooth iron disc electrode in the temperature range 20 ≤ T/°C ≤ 60 in 2 M NaOH. It has been demonstrated that only for |η| ≥0.1 V can the polarisation curve be considered as that corresponding to the HER, due to the corrosion process that takes place at low overpotentials. The experimental results were adequately correlated by the Vollmer-Heyrovsky-Tafel mechanism with a Langmuirian adsorption, considering αv ≠ αH. On this basis, two sets of kinetic parameters were found for each of the three elementary steps and the corresponding apparent activation energies were also evaluated. These results allowed the calculation of the experimental kinetic parameters, Tafel slope and extrapolated exchange current density, for all the temperatures studied.
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
description The hydrogen evolution reaction (HER) has been studied on a rotating polycrystalline smooth iron disc electrode in the temperature range 20 ≤ T/°C ≤ 60 in 2 M NaOH. It has been demonstrated that only for |η| ≥0.1 V can the polarisation curve be considered as that corresponding to the HER, due to the corrosion process that takes place at low overpotentials. The experimental results were adequately correlated by the Vollmer-Heyrovsky-Tafel mechanism with a Langmuirian adsorption, considering αv ≠ αH. On this basis, two sets of kinetic parameters were found for each of the three elementary steps and the corresponding apparent activation energies were also evaluated. These results allowed the calculation of the experimental kinetic parameters, Tafel slope and extrapolated exchange current density, for all the temperatures studied.
publishDate 2001
dc.date.none.fl_str_mv 2001-05
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/11336/100007
Gennero, Maria Rosa; Chialvo, Abel Cesar; Hydrogen evolution reaction on a smooth iron electrode in alkaline solution at different temperatures; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 3; 15; 5-2001; 3180-3184
1463-9076
CONICET Digital
CONICET
url http://hdl.handle.net/11336/100007
identifier_str_mv Gennero, Maria Rosa; Chialvo, Abel Cesar; Hydrogen evolution reaction on a smooth iron electrode in alkaline solution at different temperatures; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 3; 15; 5-2001; 3180-3184
1463-9076
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1039/b102777h
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 Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
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_ 1842269455740043264
score 13.13397

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