Electrochemical impedance study of iron electrodes covered by polypyrrole films electrosynthesized in the presence of AOT

Autores
Lehr, Ivana Leticia; Saidman, Silvana Beatriz
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The electrosynthesis of polypyrrole (PPy) onto iron electrodes in the presence of sodium bis(2-ethylhexyl) sulfosuccinate (AOT) solutions is characterized by the formation of a gelatinous material in parallel to the growth of the polymer. The electrochemical behaviour of this system under different experimental conditions was investigated using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry. The study was focused in understanding the effects of various parameters, such as nature of the electrolyte and film thickness, on the dissolution process of iron. The response at low frequencies is related with the activity of the substrate. It was found that the electrode impedance for thick films is governed by diffusion of iron ions across the polymer and gel-like layers. Mass transfer contribution is prominent at the early stages of corrosion in chloride solution.
Fil: Lehr, Ivana Leticia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina
Fil: Saidman, Silvana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina
Materia
Aot
Electrochemical Impedance Spectroscopy
Electrodeposited Polypyrrole
Iron
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:11336/79602
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Electrochemical impedance study of iron electrodes covered by polypyrrole films electrosynthesized in the presence of AOTLehr, Ivana LeticiaSaidman, Silvana BeatrizAotElectrochemical Impedance SpectroscopyElectrodeposited PolypyrroleIronhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The electrosynthesis of polypyrrole (PPy) onto iron electrodes in the presence of sodium bis(2-ethylhexyl) sulfosuccinate (AOT) solutions is characterized by the formation of a gelatinous material in parallel to the growth of the polymer. The electrochemical behaviour of this system under different experimental conditions was investigated using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry. The study was focused in understanding the effects of various parameters, such as nature of the electrolyte and film thickness, on the dissolution process of iron. The response at low frequencies is related with the activity of the substrate. It was found that the electrode impedance for thick films is governed by diffusion of iron ions across the polymer and gel-like layers. Mass transfer contribution is prominent at the early stages of corrosion in chloride solution.Fil: Lehr, Ivana Leticia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; ArgentinaFil: Saidman, Silvana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; ArgentinaElsevier Science2008-07-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/79602Lehr, Ivana Leticia; Saidman, Silvana Beatriz; Electrochemical impedance study of iron electrodes covered by polypyrrole films electrosynthesized in the presence of AOT; Elsevier Science; Reactive & Functional Polymers; 68; 7; 6-7-2008; 1152-11581381-5148CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1381514808000588info:eu-repo/semantics/altIdentifier/doi/10.1016/j.reactfunctpolym.2008.03.006info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:12:36Zoai:ri.conicet.gov.ar:11336/79602instacron: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:34982025-10-15 15:12:36.615CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electrochemical impedance study of iron electrodes covered by polypyrrole films electrosynthesized in the presence of AOT
title Electrochemical impedance study of iron electrodes covered by polypyrrole films electrosynthesized in the presence of AOT
spellingShingle Electrochemical impedance study of iron electrodes covered by polypyrrole films electrosynthesized in the presence of AOT
Lehr, Ivana Leticia
Aot
Electrochemical Impedance Spectroscopy
Electrodeposited Polypyrrole
Iron
title_short Electrochemical impedance study of iron electrodes covered by polypyrrole films electrosynthesized in the presence of AOT
title_full Electrochemical impedance study of iron electrodes covered by polypyrrole films electrosynthesized in the presence of AOT
title_fullStr Electrochemical impedance study of iron electrodes covered by polypyrrole films electrosynthesized in the presence of AOT
title_full_unstemmed Electrochemical impedance study of iron electrodes covered by polypyrrole films electrosynthesized in the presence of AOT
title_sort Electrochemical impedance study of iron electrodes covered by polypyrrole films electrosynthesized in the presence of AOT
dc.creator.none.fl_str_mv Lehr, Ivana Leticia
Saidman, Silvana Beatriz
author Lehr, Ivana Leticia
author_facet Lehr, Ivana Leticia
Saidman, Silvana Beatriz
author_role author
author2 Saidman, Silvana Beatriz
author2_role author
dc.subject.none.fl_str_mv Aot
Electrochemical Impedance Spectroscopy
Electrodeposited Polypyrrole
Iron
topic Aot
Electrochemical Impedance Spectroscopy
Electrodeposited Polypyrrole
Iron
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 electrosynthesis of polypyrrole (PPy) onto iron electrodes in the presence of sodium bis(2-ethylhexyl) sulfosuccinate (AOT) solutions is characterized by the formation of a gelatinous material in parallel to the growth of the polymer. The electrochemical behaviour of this system under different experimental conditions was investigated using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry. The study was focused in understanding the effects of various parameters, such as nature of the electrolyte and film thickness, on the dissolution process of iron. The response at low frequencies is related with the activity of the substrate. It was found that the electrode impedance for thick films is governed by diffusion of iron ions across the polymer and gel-like layers. Mass transfer contribution is prominent at the early stages of corrosion in chloride solution.
Fil: Lehr, Ivana Leticia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina
Fil: Saidman, Silvana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina
description The electrosynthesis of polypyrrole (PPy) onto iron electrodes in the presence of sodium bis(2-ethylhexyl) sulfosuccinate (AOT) solutions is characterized by the formation of a gelatinous material in parallel to the growth of the polymer. The electrochemical behaviour of this system under different experimental conditions was investigated using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry. The study was focused in understanding the effects of various parameters, such as nature of the electrolyte and film thickness, on the dissolution process of iron. The response at low frequencies is related with the activity of the substrate. It was found that the electrode impedance for thick films is governed by diffusion of iron ions across the polymer and gel-like layers. Mass transfer contribution is prominent at the early stages of corrosion in chloride solution.
publishDate 2008
dc.date.none.fl_str_mv 2008-07-06
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/11336/79602
Lehr, Ivana Leticia; Saidman, Silvana Beatriz; Electrochemical impedance study of iron electrodes covered by polypyrrole films electrosynthesized in the presence of AOT; Elsevier Science; Reactive & Functional Polymers; 68; 7; 6-7-2008; 1152-1158
1381-5148
CONICET Digital
CONICET
url http://hdl.handle.net/11336/79602
identifier_str_mv Lehr, Ivana Leticia; Saidman, Silvana Beatriz; Electrochemical impedance study of iron electrodes covered by polypyrrole films electrosynthesized in the presence of AOT; Elsevier Science; Reactive & Functional Polymers; 68; 7; 6-7-2008; 1152-1158
1381-5148
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1381514808000588
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.reactfunctpolym.2008.03.006
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
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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
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score 13.22299

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