Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxide

Autores
Posadas, Dionisio; Arvia, Alejandro Jorge; Podestá, José J.
Año de publicación
1971
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The kinetics of polycrystalline iron electrodes has been investigated under different experimental conditions, employing solutions of hydrogen chloride in dimethylsulphoxide in the presence of KClO4 as supporting electrolyte. Anodic E/I curves exhibit active and passive regions, the former having a Tafel slope of 2RT/3F. At the lower cathodic polarizations, hydrogen discharge occurs and at higher, the electrodeposition of ferrous ion takes place; both reactions have Tafel slopes of 2RT/F. Other kinetic parameters obtained include the reaction orders, dependence of corrosion potential on HCl concentration, non-steady slopes from decay curves, experimental activation energy, etc. The interpretation of the reactions is given in terms of a consecutive reaction mechanism involving the participation of solvent ions. The reaction scheme is formally the same as already discussed for the iron electrode in aqueous solutions to explain the 2RT/3F anodic Tafel slope.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Química
Ciencias Exactas
Iron electrode
Kinetics
Electrodeposition
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/121734
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/121734
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxidePosadas, DionisioArvia, Alejandro JorgePodestá, José J.QuímicaCiencias ExactasIron electrodeKineticsElectrodepositionThe kinetics of polycrystalline iron electrodes has been investigated under different experimental conditions, employing solutions of hydrogen chloride in dimethylsulphoxide in the presence of KClO<sub>4</sub> as supporting electrolyte. Anodic E/I curves exhibit active and passive regions, the former having a Tafel slope of 2RT/3F. At the lower cathodic polarizations, hydrogen discharge occurs and at higher, the electrodeposition of ferrous ion takes place; both reactions have Tafel slopes of 2RT/F. Other kinetic parameters obtained include the reaction orders, dependence of corrosion potential on HCl concentration, non-steady slopes from decay curves, experimental activation energy, etc. The interpretation of the reactions is given in terms of a consecutive reaction mechanism involving the participation of solvent ions. The reaction scheme is formally the same as already discussed for the iron electrode in aqueous solutions to explain the 2RT/3F anodic Tafel slope.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1971info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1025-1039http://sedici.unlp.edu.ar/handle/10915/121734enginfo:eu-repo/semantics/altIdentifier/issn/0013-4686info:eu-repo/semantics/altIdentifier/doi/10.1016/0013-4686(71)85064-8info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:28:54Zoai:sedici.unlp.edu.ar:10915/121734Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:28:55.272SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxide
title Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxide
spellingShingle Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxide
Posadas, Dionisio
Química
Ciencias Exactas
Iron electrode
Kinetics
Electrodeposition
title_short Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxide
title_full Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxide
title_fullStr Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxide
title_full_unstemmed Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxide
title_sort Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxide
dc.creator.none.fl_str_mv Posadas, Dionisio
Arvia, Alejandro Jorge
Podestá, José J.
author Posadas, Dionisio
author_facet Posadas, Dionisio
Arvia, Alejandro Jorge
Podestá, José J.
author_role author
author2 Arvia, Alejandro Jorge
Podestá, José J.
author2_role author
author
dc.subject.none.fl_str_mv Química
Ciencias Exactas
Iron electrode
Kinetics
Electrodeposition
topic Química
Ciencias Exactas
Iron electrode
Kinetics
Electrodeposition
dc.description.none.fl_txt_mv The kinetics of polycrystalline iron electrodes has been investigated under different experimental conditions, employing solutions of hydrogen chloride in dimethylsulphoxide in the presence of KClO<sub>4</sub> as supporting electrolyte. Anodic E/I curves exhibit active and passive regions, the former having a Tafel slope of 2RT/3F. At the lower cathodic polarizations, hydrogen discharge occurs and at higher, the electrodeposition of ferrous ion takes place; both reactions have Tafel slopes of 2RT/F. Other kinetic parameters obtained include the reaction orders, dependence of corrosion potential on HCl concentration, non-steady slopes from decay curves, experimental activation energy, etc. The interpretation of the reactions is given in terms of a consecutive reaction mechanism involving the participation of solvent ions. The reaction scheme is formally the same as already discussed for the iron electrode in aqueous solutions to explain the 2RT/3F anodic Tafel slope.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description The kinetics of polycrystalline iron electrodes has been investigated under different experimental conditions, employing solutions of hydrogen chloride in dimethylsulphoxide in the presence of KClO<sub>4</sub> as supporting electrolyte. Anodic E/I curves exhibit active and passive regions, the former having a Tafel slope of 2RT/3F. At the lower cathodic polarizations, hydrogen discharge occurs and at higher, the electrodeposition of ferrous ion takes place; both reactions have Tafel slopes of 2RT/F. Other kinetic parameters obtained include the reaction orders, dependence of corrosion potential on HCl concentration, non-steady slopes from decay curves, experimental activation energy, etc. The interpretation of the reactions is given in terms of a consecutive reaction mechanism involving the participation of solvent ions. The reaction scheme is formally the same as already discussed for the iron electrode in aqueous solutions to explain the 2RT/3F anodic Tafel slope.
publishDate 1971
dc.date.none.fl_str_mv 1971
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/121734
url http://sedici.unlp.edu.ar/handle/10915/121734
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0013-4686
info:eu-repo/semantics/altIdentifier/doi/10.1016/0013-4686(71)85064-8
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
1025-1039
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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