Ellipsometry of polycrystalline iron electrodes in alkaline solutions containing chloride ions under different electrochemical conditions

Autores
Juanto, S.; Zerbino, Jorge Omar; Miguez, M.I.; Vilche, Jorge Roberto; Arvia, Alejandro Jorge
Año de publicación
1987
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The ellipsometric and voltammetric responses of iron in 0.04 M NaOH + xM NaCl (0 ⩽ x ⩽ 0.3) are investigated. Three main processes, barrier layer formation, outer layer formation and pitting corrosion which depend differently on the presence of NaCl can be distinguished. The first process becomes practically independent of NaCl concentration. Otherwise, under certain conditions NaCl increases the charge associated with the outer layer formation through pitting. The dependence of the latter on NaCl concentration is in agreement with data earlier reported in the literature. A relation among the three processes is discussed in terms of competitive anion adsorption on iron specimen and formation of redox couples within the hydrous oxide layer produced on iron.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Ciencias Exactas
Química
Polycrystalline iron electrodes
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:10915/120821
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/120821
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Ellipsometry of polycrystalline iron electrodes in alkaline solutions containing chloride ions under different electrochemical conditionsJuanto, S.Zerbino, Jorge OmarMiguez, M.I.Vilche, Jorge RobertoArvia, Alejandro JorgeCiencias ExactasQuímicaPolycrystalline iron electrodesAlkaline solutionsThe ellipsometric and voltammetric responses of iron in 0.04 M NaOH + xM NaCl (0 ⩽ x ⩽ 0.3) are investigated. Three main processes, barrier layer formation, outer layer formation and pitting corrosion which depend differently on the presence of NaCl can be distinguished. The first process becomes practically independent of NaCl concentration. Otherwise, under certain conditions NaCl increases the charge associated with the outer layer formation through pitting. The dependence of the latter on NaCl concentration is in agreement with data earlier reported in the literature. A relation among the three processes is discussed in terms of competitive anion adsorption on iron specimen and formation of redox couples within the hydrous oxide layer produced on iron.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1987info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1743-1749http://sedici.unlp.edu.ar/handle/10915/120821enginfo:eu-repo/semantics/altIdentifier/issn/0013-4686info:eu-repo/semantics/altIdentifier/doi/10.1016/0013-4686(87)80009-9info: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:UNLP2025-09-17T10:11:22Zoai:sedici.unlp.edu.ar:10915/120821Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-17 10:11:22.835SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Ellipsometry of polycrystalline iron electrodes in alkaline solutions containing chloride ions under different electrochemical conditions
title Ellipsometry of polycrystalline iron electrodes in alkaline solutions containing chloride ions under different electrochemical conditions
spellingShingle Ellipsometry of polycrystalline iron electrodes in alkaline solutions containing chloride ions under different electrochemical conditions
Juanto, S.
Ciencias Exactas
Química
Polycrystalline iron electrodes
Alkaline solutions
title_short Ellipsometry of polycrystalline iron electrodes in alkaline solutions containing chloride ions under different electrochemical conditions
title_full Ellipsometry of polycrystalline iron electrodes in alkaline solutions containing chloride ions under different electrochemical conditions
title_fullStr Ellipsometry of polycrystalline iron electrodes in alkaline solutions containing chloride ions under different electrochemical conditions
title_full_unstemmed Ellipsometry of polycrystalline iron electrodes in alkaline solutions containing chloride ions under different electrochemical conditions
title_sort Ellipsometry of polycrystalline iron electrodes in alkaline solutions containing chloride ions under different electrochemical conditions
dc.creator.none.fl_str_mv Juanto, S.
Zerbino, Jorge Omar
Miguez, M.I.
Vilche, Jorge Roberto
Arvia, Alejandro Jorge
author Juanto, S.
author_facet Juanto, S.
Zerbino, Jorge Omar
Miguez, M.I.
Vilche, Jorge Roberto
Arvia, Alejandro Jorge
author_role author
author2 Zerbino, Jorge Omar
Miguez, M.I.
Vilche, Jorge Roberto
Arvia, Alejandro Jorge
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Química
Polycrystalline iron electrodes
Alkaline solutions
topic Ciencias Exactas
Química
Polycrystalline iron electrodes
Alkaline solutions
dc.description.none.fl_txt_mv The ellipsometric and voltammetric responses of iron in 0.04 M NaOH + xM NaCl (0 ⩽ x ⩽ 0.3) are investigated. Three main processes, barrier layer formation, outer layer formation and pitting corrosion which depend differently on the presence of NaCl can be distinguished. The first process becomes practically independent of NaCl concentration. Otherwise, under certain conditions NaCl increases the charge associated with the outer layer formation through pitting. The dependence of the latter on NaCl concentration is in agreement with data earlier reported in the literature. A relation among the three processes is discussed in terms of competitive anion adsorption on iron specimen and formation of redox couples within the hydrous oxide layer produced on iron.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description The ellipsometric and voltammetric responses of iron in 0.04 M NaOH + xM NaCl (0 ⩽ x ⩽ 0.3) are investigated. Three main processes, barrier layer formation, outer layer formation and pitting corrosion which depend differently on the presence of NaCl can be distinguished. The first process becomes practically independent of NaCl concentration. Otherwise, under certain conditions NaCl increases the charge associated with the outer layer formation through pitting. The dependence of the latter on NaCl concentration is in agreement with data earlier reported in the literature. A relation among the three processes is discussed in terms of competitive anion adsorption on iron specimen and formation of redox couples within the hydrous oxide layer produced on iron.
publishDate 1987
dc.date.none.fl_str_mv 1987
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/10915/120821
url http://sedici.unlp.edu.ar/handle/10915/120821
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(87)80009-9
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
1743-1749
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 13.000565

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