Electrochromism and Swelling of Polypyrrole Membranes: An Electrochemical and Ellipsometric Study

Autores
Zerbino, Jorge Omar; Sustersic, M. G.; Falivene, Claudio; Avaca, N. E.; Maltz, Alberto Leonardo
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The growth of polypyrrole (Ppy) layers on gold electrodes in nearly neutral pH solutions is analysed using “in situ” voltametric and ellipsometric techniques. Different film structures are obtained depending on the potentiodynamic programme and the composition of the electrolyte. More compact dodecylsulphate-(DS) doped Ppy layers were grown at 1.2 V versus RHE than those obtained by applying a higher potential. The more compact layers correspond to the growth of an oxidised Ppy/DS layer that shows low pseudo capacity behaviour. After dipping, the doped Ppy/DS film in KCl solution-significant variations in optical indices and thickness are detected as a function of the applied potential. Higher electrochromism as well as decrease in film thickness after cathodisation is achieved. The optical indices and the thickness of the Ppy layer formed under different applied potential/time programmes are estimated.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Departamento de Matemática
Materia
Química
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/124343
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/124343
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Electrochromism and Swelling of Polypyrrole Membranes: An Electrochemical and Ellipsometric StudyZerbino, Jorge OmarSustersic, M. G.Falivene, ClaudioAvaca, N. E.Maltz, Alberto LeonardoQuímicaThe growth of polypyrrole (Ppy) layers on gold electrodes in nearly neutral pH solutions is analysed using “in situ” voltametric and ellipsometric techniques. Different film structures are obtained depending on the potentiodynamic programme and the composition of the electrolyte. More compact dodecylsulphate-(DS) doped Ppy layers were grown at 1.2 V versus RHE than those obtained by applying a higher potential. The more compact layers correspond to the growth of an oxidised Ppy/DS layer that shows low pseudo capacity behaviour. After dipping, the doped Ppy/DS film in KCl solution-significant variations in optical indices and thickness are detected as a function of the applied potential. Higher electrochromism as well as decrease in film thickness after cathodisation is achieved. The optical indices and the thickness of the Ppy layer formed under different applied potential/time programmes are estimated.Instituto de Investigaciones Fisicoquímicas Teóricas y AplicadasDepartamento de Matemática2011info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/124343enginfo:eu-repo/semantics/altIdentifier/issn/2090-3537info:eu-repo/semantics/altIdentifier/doi/10.4061/2011/379253info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:21:18Zoai:sedici.unlp.edu.ar:10915/124343Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:21:18.578SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Electrochromism and Swelling of Polypyrrole Membranes: An Electrochemical and Ellipsometric Study
title Electrochromism and Swelling of Polypyrrole Membranes: An Electrochemical and Ellipsometric Study
spellingShingle Electrochromism and Swelling of Polypyrrole Membranes: An Electrochemical and Ellipsometric Study
Zerbino, Jorge Omar
Química
title_short Electrochromism and Swelling of Polypyrrole Membranes: An Electrochemical and Ellipsometric Study
title_full Electrochromism and Swelling of Polypyrrole Membranes: An Electrochemical and Ellipsometric Study
title_fullStr Electrochromism and Swelling of Polypyrrole Membranes: An Electrochemical and Ellipsometric Study
title_full_unstemmed Electrochromism and Swelling of Polypyrrole Membranes: An Electrochemical and Ellipsometric Study
title_sort Electrochromism and Swelling of Polypyrrole Membranes: An Electrochemical and Ellipsometric Study
dc.creator.none.fl_str_mv Zerbino, Jorge Omar
Sustersic, M. G.
Falivene, Claudio
Avaca, N. E.
Maltz, Alberto Leonardo
author Zerbino, Jorge Omar
author_facet Zerbino, Jorge Omar
Sustersic, M. G.
Falivene, Claudio
Avaca, N. E.
Maltz, Alberto Leonardo
author_role author
author2 Sustersic, M. G.
Falivene, Claudio
Avaca, N. E.
Maltz, Alberto Leonardo
author2_role author
author
author
author
dc.subject.none.fl_str_mv Química
topic Química
dc.description.none.fl_txt_mv The growth of polypyrrole (Ppy) layers on gold electrodes in nearly neutral pH solutions is analysed using “in situ” voltametric and ellipsometric techniques. Different film structures are obtained depending on the potentiodynamic programme and the composition of the electrolyte. More compact dodecylsulphate-(DS) doped Ppy layers were grown at 1.2 V versus RHE than those obtained by applying a higher potential. The more compact layers correspond to the growth of an oxidised Ppy/DS layer that shows low pseudo capacity behaviour. After dipping, the doped Ppy/DS film in KCl solution-significant variations in optical indices and thickness are detected as a function of the applied potential. Higher electrochromism as well as decrease in film thickness after cathodisation is achieved. The optical indices and the thickness of the Ppy layer formed under different applied potential/time programmes are estimated.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Departamento de Matemática
description The growth of polypyrrole (Ppy) layers on gold electrodes in nearly neutral pH solutions is analysed using “in situ” voltametric and ellipsometric techniques. Different film structures are obtained depending on the potentiodynamic programme and the composition of the electrolyte. More compact dodecylsulphate-(DS) doped Ppy layers were grown at 1.2 V versus RHE than those obtained by applying a higher potential. The more compact layers correspond to the growth of an oxidised Ppy/DS layer that shows low pseudo capacity behaviour. After dipping, the doped Ppy/DS film in KCl solution-significant variations in optical indices and thickness are detected as a function of the applied potential. Higher electrochromism as well as decrease in film thickness after cathodisation is achieved. The optical indices and the thickness of the Ppy layer formed under different applied potential/time programmes are estimated.
publishDate 2011
dc.date.none.fl_str_mv 2011
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/10915/124343
url http://sedici.unlp.edu.ar/handle/10915/124343
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/2090-3537
info:eu-repo/semantics/altIdentifier/doi/10.4061/2011/379253
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
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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