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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/79602
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T10:15:24Zoai: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:34982025-09-29 10:15:24.356CONICET 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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1844614089636052992 |
score |
13.070432 |