Kinetics of the electroreduction of anodically formed cadmium oxide layers in alkaline solutions

Autores
de Urraza, Juan Ignacio; Gervasi, Claudio Alfredo; Saidman, S. B.; Vilche, Jorge Roberto
Año de publicación
1993
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The kinetics of the potentiostatic electroreduction of cadmium oxide layers on polycrystalline cadmium electrodes have been investigated in 0.01–1.0m NaOH solutions. The study was undertaken to determine the influence of passive film formation conditions on the electroreduction process of the anodically produced hydrous cadmium hydroxide-oxide layers. By properly adjusting the electroreduction conditions the cathodic potentiostatic current transients can be satisfactorily described by a nucleation and growth mechanism involving the participation of soluble Cd(II) and passivating anodic species. Experimental data were analysed by the application of non linear least squares fit routines. From the parametric identification procedure coherent potential dependencies of the corresponding fitting parameters as well as reasonable values of the physicochemical constants included in the reaction model, have been obtained. In this way it is possible to correlate kinetic data of the electroreduction process of the anodic oxide layers to make a discrimination between the different mechanistic contributions to this complex reaction involving several steps.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Química
Ciencias Exactas
cadmium oxide layers
potentiostatic electroreduction
alkaline solutions
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/137910
Acceder
id SEDICI_403fe2f96ff4760409b7ec3b92f7ceb8
oai_identifier_str oai:sedici.unlp.edu.ar:10915/137910
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Kinetics of the electroreduction of anodically formed cadmium oxide layers in alkaline solutionsde Urraza, Juan IgnacioGervasi, Claudio AlfredoSaidman, S. B.Vilche, Jorge RobertoQuímicaCiencias Exactascadmium oxide layerspotentiostatic electroreductionalkaline solutionsThe kinetics of the potentiostatic electroreduction of cadmium oxide layers on polycrystalline cadmium electrodes have been investigated in 0.01–1.0m NaOH solutions. The study was undertaken to determine the influence of passive film formation conditions on the electroreduction process of the anodically produced hydrous cadmium hydroxide-oxide layers. By properly adjusting the electroreduction conditions the cathodic potentiostatic current transients can be satisfactorily described by a nucleation and growth mechanism involving the participation of soluble Cd(II) and passivating anodic species. Experimental data were analysed by the application of non linear least squares fit routines. From the parametric identification procedure coherent potential dependencies of the corresponding fitting parameters as well as reasonable values of the physicochemical constants included in the reaction model, have been obtained. In this way it is possible to correlate kinetic data of the electroreduction process of the anodic oxide layers to make a discrimination between the different mechanistic contributions to this complex reaction involving several steps.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1993info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1207-1213http://sedici.unlp.edu.ar/handle/10915/137910enginfo:eu-repo/semantics/altIdentifier/issn/0021-891xinfo:eu-repo/semantics/altIdentifier/issn/1572-8838info:eu-repo/semantics/altIdentifier/doi/10.1007/bf00234802info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T11:04:04Zoai:sedici.unlp.edu.ar:10915/137910Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:04:04.531SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Kinetics of the electroreduction of anodically formed cadmium oxide layers in alkaline solutions
title Kinetics of the electroreduction of anodically formed cadmium oxide layers in alkaline solutions
spellingShingle Kinetics of the electroreduction of anodically formed cadmium oxide layers in alkaline solutions
de Urraza, Juan Ignacio
Química
Ciencias Exactas
cadmium oxide layers
potentiostatic electroreduction
alkaline solutions
title_short Kinetics of the electroreduction of anodically formed cadmium oxide layers in alkaline solutions
title_full Kinetics of the electroreduction of anodically formed cadmium oxide layers in alkaline solutions
title_fullStr Kinetics of the electroreduction of anodically formed cadmium oxide layers in alkaline solutions
title_full_unstemmed Kinetics of the electroreduction of anodically formed cadmium oxide layers in alkaline solutions
title_sort Kinetics of the electroreduction of anodically formed cadmium oxide layers in alkaline solutions
dc.creator.none.fl_str_mv de Urraza, Juan Ignacio
Gervasi, Claudio Alfredo
Saidman, S. B.
Vilche, Jorge Roberto
author de Urraza, Juan Ignacio
author_facet de Urraza, Juan Ignacio
Gervasi, Claudio Alfredo
Saidman, S. B.
Vilche, Jorge Roberto
author_role author
author2 Gervasi, Claudio Alfredo
Saidman, S. B.
Vilche, Jorge Roberto
author2_role author
author
author
dc.subject.none.fl_str_mv Química
Ciencias Exactas
cadmium oxide layers
potentiostatic electroreduction
alkaline solutions
topic Química
Ciencias Exactas
cadmium oxide layers
potentiostatic electroreduction
alkaline solutions
dc.description.none.fl_txt_mv The kinetics of the potentiostatic electroreduction of cadmium oxide layers on polycrystalline cadmium electrodes have been investigated in 0.01–1.0m NaOH solutions. The study was undertaken to determine the influence of passive film formation conditions on the electroreduction process of the anodically produced hydrous cadmium hydroxide-oxide layers. By properly adjusting the electroreduction conditions the cathodic potentiostatic current transients can be satisfactorily described by a nucleation and growth mechanism involving the participation of soluble Cd(II) and passivating anodic species. Experimental data were analysed by the application of non linear least squares fit routines. From the parametric identification procedure coherent potential dependencies of the corresponding fitting parameters as well as reasonable values of the physicochemical constants included in the reaction model, have been obtained. In this way it is possible to correlate kinetic data of the electroreduction process of the anodic oxide layers to make a discrimination between the different mechanistic contributions to this complex reaction involving several steps.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description The kinetics of the potentiostatic electroreduction of cadmium oxide layers on polycrystalline cadmium electrodes have been investigated in 0.01–1.0m NaOH solutions. The study was undertaken to determine the influence of passive film formation conditions on the electroreduction process of the anodically produced hydrous cadmium hydroxide-oxide layers. By properly adjusting the electroreduction conditions the cathodic potentiostatic current transients can be satisfactorily described by a nucleation and growth mechanism involving the participation of soluble Cd(II) and passivating anodic species. Experimental data were analysed by the application of non linear least squares fit routines. From the parametric identification procedure coherent potential dependencies of the corresponding fitting parameters as well as reasonable values of the physicochemical constants included in the reaction model, have been obtained. In this way it is possible to correlate kinetic data of the electroreduction process of the anodic oxide layers to make a discrimination between the different mechanistic contributions to this complex reaction involving several steps.
publishDate 1993
dc.date.none.fl_str_mv 1993
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/10915/137910
url http://sedici.unlp.edu.ar/handle/10915/137910
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/bf00234802
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
1207-1213
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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