Characterisation of polypyrrole electrosynthesised on aluminium

Autores
Quinzani, Oscar Valentín; Saidman, Silvana Beatriz
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Cyclic voltammetry has been used to investigate the role of the anions and the solution pH on the redox properties of polypyrrole electrosynthesised onto aluminium in alkaline solutions. The polymer film was characterised by SEM and IR spectroscopy. Moreover, the influence of the cathodic potential on the redox process was analysed for films formed in acid and alkaline solutions. The electrochemical response was compared with that obtained on vitreous carbon electrode. The differences in the shape and evolution of the voltammograms during cycling have been explained by a different participation of the ions. The best redox activity of the polymer is obtained in NO3 - due to the fact that this anion could limit the anodic dissolution of Al. The other anions analysed cannot be incorporated into the polymer matrix. As a consequence, the transport of OH- occurs, which provokes a significative Al dissolution. It is expected that the Al3+ ions generated during the electrodissolution are incorporated into the polymer in order to equilibrate the charge of the film.
Fil: Quinzani, Oscar Valentín. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; 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 Química; Argentina
Materia
ALUMINIUM ELECTRODE
CYCLIC VOLTAMMETRY
ELECTRODEPOSITION
ION EXCHANGE
POLYPYRROLE
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:11336/98104
Acceder
id CONICETDig_70034a8d860d9da128a9b34fa3beeb9f
oai_identifier_str oai:ri.conicet.gov.ar:11336/98104
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Characterisation of polypyrrole electrosynthesised on aluminiumQuinzani, Oscar ValentínSaidman, Silvana BeatrizALUMINIUM ELECTRODECYCLIC VOLTAMMETRYELECTRODEPOSITIONION EXCHANGEPOLYPYRROLEhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Cyclic voltammetry has been used to investigate the role of the anions and the solution pH on the redox properties of polypyrrole electrosynthesised onto aluminium in alkaline solutions. The polymer film was characterised by SEM and IR spectroscopy. Moreover, the influence of the cathodic potential on the redox process was analysed for films formed in acid and alkaline solutions. The electrochemical response was compared with that obtained on vitreous carbon electrode. The differences in the shape and evolution of the voltammograms during cycling have been explained by a different participation of the ions. The best redox activity of the polymer is obtained in NO3 - due to the fact that this anion could limit the anodic dissolution of Al. The other anions analysed cannot be incorporated into the polymer matrix. As a consequence, the transport of OH- occurs, which provokes a significative Al dissolution. It is expected that the Al3+ ions generated during the electrodissolution are incorporated into the polymer in order to equilibrate the charge of the film.Fil: Quinzani, Oscar Valentín. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; ArgentinaFil: Saidman, Silvana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Química; ArgentinaPergamon-Elsevier Science Ltd2004-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/98104Quinzani, Oscar Valentín; Saidman, Silvana Beatriz; Characterisation of polypyrrole electrosynthesised on aluminium; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 50; 1; 11-2004; 127-1340013-4686CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2004.07.022info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0013468604008333info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:11:27Zoai:ri.conicet.gov.ar:11336/98104instacron: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 10:11:27.608CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Characterisation of polypyrrole electrosynthesised on aluminium
title Characterisation of polypyrrole electrosynthesised on aluminium
spellingShingle Characterisation of polypyrrole electrosynthesised on aluminium
Quinzani, Oscar Valentín
ALUMINIUM ELECTRODE
CYCLIC VOLTAMMETRY
ELECTRODEPOSITION
ION EXCHANGE
POLYPYRROLE
title_short Characterisation of polypyrrole electrosynthesised on aluminium
title_full Characterisation of polypyrrole electrosynthesised on aluminium
title_fullStr Characterisation of polypyrrole electrosynthesised on aluminium
title_full_unstemmed Characterisation of polypyrrole electrosynthesised on aluminium
title_sort Characterisation of polypyrrole electrosynthesised on aluminium
dc.creator.none.fl_str_mv Quinzani, Oscar Valentín
Saidman, Silvana Beatriz
author Quinzani, Oscar Valentín
author_facet Quinzani, Oscar Valentín
Saidman, Silvana Beatriz
author_role author
author2 Saidman, Silvana Beatriz
author2_role author
dc.subject.none.fl_str_mv ALUMINIUM ELECTRODE
CYCLIC VOLTAMMETRY
ELECTRODEPOSITION
ION EXCHANGE
POLYPYRROLE
topic ALUMINIUM ELECTRODE
CYCLIC VOLTAMMETRY
ELECTRODEPOSITION
ION EXCHANGE
POLYPYRROLE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Cyclic voltammetry has been used to investigate the role of the anions and the solution pH on the redox properties of polypyrrole electrosynthesised onto aluminium in alkaline solutions. The polymer film was characterised by SEM and IR spectroscopy. Moreover, the influence of the cathodic potential on the redox process was analysed for films formed in acid and alkaline solutions. The electrochemical response was compared with that obtained on vitreous carbon electrode. The differences in the shape and evolution of the voltammograms during cycling have been explained by a different participation of the ions. The best redox activity of the polymer is obtained in NO3 - due to the fact that this anion could limit the anodic dissolution of Al. The other anions analysed cannot be incorporated into the polymer matrix. As a consequence, the transport of OH- occurs, which provokes a significative Al dissolution. It is expected that the Al3+ ions generated during the electrodissolution are incorporated into the polymer in order to equilibrate the charge of the film.
Fil: Quinzani, Oscar Valentín. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; 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 Química; Argentina
description Cyclic voltammetry has been used to investigate the role of the anions and the solution pH on the redox properties of polypyrrole electrosynthesised onto aluminium in alkaline solutions. The polymer film was characterised by SEM and IR spectroscopy. Moreover, the influence of the cathodic potential on the redox process was analysed for films formed in acid and alkaline solutions. The electrochemical response was compared with that obtained on vitreous carbon electrode. The differences in the shape and evolution of the voltammograms during cycling have been explained by a different participation of the ions. The best redox activity of the polymer is obtained in NO3 - due to the fact that this anion could limit the anodic dissolution of Al. The other anions analysed cannot be incorporated into the polymer matrix. As a consequence, the transport of OH- occurs, which provokes a significative Al dissolution. It is expected that the Al3+ ions generated during the electrodissolution are incorporated into the polymer in order to equilibrate the charge of the film.
publishDate 2004
dc.date.none.fl_str_mv 2004-11
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/11336/98104
Quinzani, Oscar Valentín; Saidman, Silvana Beatriz; Characterisation of polypyrrole electrosynthesised on aluminium; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 50; 1; 11-2004; 127-134
0013-4686
CONICET Digital
CONICET
url http://hdl.handle.net/11336/98104
identifier_str_mv Quinzani, Oscar Valentín; Saidman, Silvana Beatriz; Characterisation of polypyrrole electrosynthesised on aluminium; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 50; 1; 11-2004; 127-134
0013-4686
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2004.07.022
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0013468604008333
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 Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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
_version_ 1844614013891117056
score 13.070432

Publicaciones similares