Influence of temperature on electroreduction of anodically formed passive films on lead electrodes in H2SO4 Solutions : Part II: Electroreduction of PbO layers

Autores
Varela, Francisco Eduardo; Gassa, Liliana Mabel; Vilche, Jorge Roberto
Año de publicación
1995
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Combined voltammetry and potentiostatic current transient techniques have been employed to study the electroreduction of anodically formed lead oxide layers, which build up beneath the initially grown PbSO4 crystal, on polycrystalline lead electrodes in concentrated sulphuric acid solution in the 0 to 50° C temperature range. Current transient analysis of the PbO electroreduction performed by using parametric identification procedures and nonlinear fit routines has demonstrated that kinetic data can be mainly interpreted in terms of a progressive nucleation and three-dimensional growth mechanism under charge transfer control, whereas in the initial short time range a process under H+ ion diffusion control has been detected. The phenomenological explanation of the temperature effect on electrode processes is based on the Arrhenius behaviour of kinetic operational parameters.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Ciencias Exactas
Física
electroreduction
anodically formed lead oxide layers
temperature
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:10915/139767
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/139767
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Influence of temperature on electroreduction of anodically formed passive films on lead electrodes in H2SO4 Solutions : Part II: Electroreduction of PbO layersVarela, Francisco EduardoGassa, Liliana MabelVilche, Jorge RobertoCiencias ExactasFísicaelectroreductionanodically formed lead oxide layerstemperatureCombined voltammetry and potentiostatic current transient techniques have been employed to study the electroreduction of anodically formed lead oxide layers, which build up beneath the initially grown PbSO4 crystal, on polycrystalline lead electrodes in concentrated sulphuric acid solution in the 0 to 50° C temperature range. Current transient analysis of the PbO electroreduction performed by using parametric identification procedures and nonlinear fit routines has demonstrated that kinetic data can be mainly interpreted in terms of a progressive nucleation and three-dimensional growth mechanism under charge transfer control, whereas in the initial short time range a process under H+ ion diffusion control has been detected. The phenomenological explanation of the temperature effect on electrode processes is based on the Arrhenius behaviour of kinetic operational parameters.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1995info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf364-370http://sedici.unlp.edu.ar/handle/10915/139767enginfo:eu-repo/semantics/altIdentifier/issn/0021-891xinfo:eu-repo/semantics/altIdentifier/issn/1572-8838info:eu-repo/semantics/altIdentifier/doi/10.1007/bf00249656info: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:UNLP2025-09-03T11:04:08Zoai:sedici.unlp.edu.ar:10915/139767Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:04:08.686SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Influence of temperature on electroreduction of anodically formed passive films on lead electrodes in H2SO4 Solutions : Part II: Electroreduction of PbO layers
title Influence of temperature on electroreduction of anodically formed passive films on lead electrodes in H2SO4 Solutions : Part II: Electroreduction of PbO layers
spellingShingle Influence of temperature on electroreduction of anodically formed passive films on lead electrodes in H2SO4 Solutions : Part II: Electroreduction of PbO layers
Varela, Francisco Eduardo
Ciencias Exactas
Física
electroreduction
anodically formed lead oxide layers
temperature
title_short Influence of temperature on electroreduction of anodically formed passive films on lead electrodes in H2SO4 Solutions : Part II: Electroreduction of PbO layers
title_full Influence of temperature on electroreduction of anodically formed passive films on lead electrodes in H2SO4 Solutions : Part II: Electroreduction of PbO layers
title_fullStr Influence of temperature on electroreduction of anodically formed passive films on lead electrodes in H2SO4 Solutions : Part II: Electroreduction of PbO layers
title_full_unstemmed Influence of temperature on electroreduction of anodically formed passive films on lead electrodes in H2SO4 Solutions : Part II: Electroreduction of PbO layers
title_sort Influence of temperature on electroreduction of anodically formed passive films on lead electrodes in H2SO4 Solutions : Part II: Electroreduction of PbO layers
dc.creator.none.fl_str_mv Varela, Francisco Eduardo
Gassa, Liliana Mabel
Vilche, Jorge Roberto
author Varela, Francisco Eduardo
author_facet Varela, Francisco Eduardo
Gassa, Liliana Mabel
Vilche, Jorge Roberto
author_role author
author2 Gassa, Liliana Mabel
Vilche, Jorge Roberto
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
electroreduction
anodically formed lead oxide layers
temperature
topic Ciencias Exactas
Física
electroreduction
anodically formed lead oxide layers
temperature
dc.description.none.fl_txt_mv Combined voltammetry and potentiostatic current transient techniques have been employed to study the electroreduction of anodically formed lead oxide layers, which build up beneath the initially grown PbSO4 crystal, on polycrystalline lead electrodes in concentrated sulphuric acid solution in the 0 to 50° C temperature range. Current transient analysis of the PbO electroreduction performed by using parametric identification procedures and nonlinear fit routines has demonstrated that kinetic data can be mainly interpreted in terms of a progressive nucleation and three-dimensional growth mechanism under charge transfer control, whereas in the initial short time range a process under H+ ion diffusion control has been detected. The phenomenological explanation of the temperature effect on electrode processes is based on the Arrhenius behaviour of kinetic operational parameters.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description Combined voltammetry and potentiostatic current transient techniques have been employed to study the electroreduction of anodically formed lead oxide layers, which build up beneath the initially grown PbSO4 crystal, on polycrystalline lead electrodes in concentrated sulphuric acid solution in the 0 to 50° C temperature range. Current transient analysis of the PbO electroreduction performed by using parametric identification procedures and nonlinear fit routines has demonstrated that kinetic data can be mainly interpreted in terms of a progressive nucleation and three-dimensional growth mechanism under charge transfer control, whereas in the initial short time range a process under H+ ion diffusion control has been detected. The phenomenological explanation of the temperature effect on electrode processes is based on the Arrhenius behaviour of kinetic operational parameters.
publishDate 1995
dc.date.none.fl_str_mv 1995
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/10915/139767
url http://sedici.unlp.edu.ar/handle/10915/139767
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0021-891x
info:eu-repo/semantics/altIdentifier/issn/1572-8838
info:eu-repo/semantics/altIdentifier/doi/10.1007/bf00249656
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
364-370
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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score 13.13397

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