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dc.contributor.author
Lehr, Ivana Leticia
dc.contributor.author
Saidman, Silvana Beatriz
dc.date.available
2019-07-15T21:18:18Z
dc.date.issued
2008-07-06
dc.identifier.citation
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
dc.identifier.issn
1381-5148
dc.identifier.uri
http://hdl.handle.net/11336/79602
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Aot
dc.subject
Electrochemical Impedance Spectroscopy
dc.subject
Electrodeposited Polypyrrole
dc.subject
Iron
dc.subject.classification
Físico-Química, Ciencia de los Polímeros, Electroquímica
dc.subject.classification
Ciencias Químicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Electrochemical impedance study of iron electrodes covered by polypyrrole films electrosynthesized in the presence of AOT
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-07-12T17:40:05Z
dc.journal.volume
68
dc.journal.number
7
dc.journal.pagination
1152-1158
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
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
dc.description.fil
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
dc.journal.title
Reactive & Functional Polymers
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1381514808000588
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.reactfunctpolym.2008.03.006
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