Comparative study of polypyrrole films electrosynthesized in alkaline and acid solutions

Autores
Lehr, Ivana Leticia; Quinzani, Oscar Valentín; Saidman, Silvana Beatriz
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The influence of the pH of electropolymerization solutions on the properties of polypyrrole films has been studied using potentiodynamic techniques and faradaic impedance spectroscopy. Scanning electron microscopy (SEM), IR and Raman spectroscopies, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) were also used for products characterization. Results indicate that, contrary to what happen with the polymer electrogenerated in acid solutions, the films prepared in alkaline media are stable and present good electrochemical activity in basic solutions. Possible explanations for the observed differences are discussed and it is proposed that the pH of electropolymerization medium directly affects chains organization. Electrosynthesis in solutions of increased basicity results in a more compact and closed polymer structure. © 2009 Elsevier B.V. All rights reserved.
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: Quinzani, Oscar Valentín. 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
Acid And Base Treatment
Electropolymerization
Polypyrrole
Vitreous Carbon
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:11336/70379
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/70379
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Comparative study of polypyrrole films electrosynthesized in alkaline and acid solutionsLehr, Ivana LeticiaQuinzani, Oscar ValentínSaidman, Silvana BeatrizAcid And Base TreatmentElectropolymerizationPolypyrroleVitreous Carbonhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The influence of the pH of electropolymerization solutions on the properties of polypyrrole films has been studied using potentiodynamic techniques and faradaic impedance spectroscopy. Scanning electron microscopy (SEM), IR and Raman spectroscopies, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) were also used for products characterization. Results indicate that, contrary to what happen with the polymer electrogenerated in acid solutions, the films prepared in alkaline media are stable and present good electrochemical activity in basic solutions. Possible explanations for the observed differences are discussed and it is proposed that the pH of electropolymerization medium directly affects chains organization. Electrosynthesis in solutions of increased basicity results in a more compact and closed polymer structure. © 2009 Elsevier B.V. All rights reserved.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: Quinzani, Oscar Valentín. 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 Science Sa2009-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/70379Lehr, Ivana Leticia; Quinzani, Oscar Valentín; Saidman, Silvana Beatriz; Comparative study of polypyrrole films electrosynthesized in alkaline and acid solutions; Elsevier Science Sa; Materials Chemistry and Physics; 117; 1; 9-2009; 250-2560254-0584CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.matchemphys.2009.05.053info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0254058409003149info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:59:21Zoai:ri.conicet.gov.ar:11336/70379instacron: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:34982025-10-22 11:59:21.869CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Comparative study of polypyrrole films electrosynthesized in alkaline and acid solutions
title Comparative study of polypyrrole films electrosynthesized in alkaline and acid solutions
spellingShingle Comparative study of polypyrrole films electrosynthesized in alkaline and acid solutions
Lehr, Ivana Leticia
Acid And Base Treatment
Electropolymerization
Polypyrrole
Vitreous Carbon
title_short Comparative study of polypyrrole films electrosynthesized in alkaline and acid solutions
title_full Comparative study of polypyrrole films electrosynthesized in alkaline and acid solutions
title_fullStr Comparative study of polypyrrole films electrosynthesized in alkaline and acid solutions
title_full_unstemmed Comparative study of polypyrrole films electrosynthesized in alkaline and acid solutions
title_sort Comparative study of polypyrrole films electrosynthesized in alkaline and acid solutions
dc.creator.none.fl_str_mv Lehr, Ivana Leticia
Quinzani, Oscar Valentín
Saidman, Silvana Beatriz
author Lehr, Ivana Leticia
author_facet Lehr, Ivana Leticia
Quinzani, Oscar Valentín
Saidman, Silvana Beatriz
author_role author
author2 Quinzani, Oscar Valentín
Saidman, Silvana Beatriz
author2_role author
author
dc.subject.none.fl_str_mv Acid And Base Treatment
Electropolymerization
Polypyrrole
Vitreous Carbon
topic Acid And Base Treatment
Electropolymerization
Polypyrrole
Vitreous Carbon
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 influence of the pH of electropolymerization solutions on the properties of polypyrrole films has been studied using potentiodynamic techniques and faradaic impedance spectroscopy. Scanning electron microscopy (SEM), IR and Raman spectroscopies, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) were also used for products characterization. Results indicate that, contrary to what happen with the polymer electrogenerated in acid solutions, the films prepared in alkaline media are stable and present good electrochemical activity in basic solutions. Possible explanations for the observed differences are discussed and it is proposed that the pH of electropolymerization medium directly affects chains organization. Electrosynthesis in solutions of increased basicity results in a more compact and closed polymer structure. © 2009 Elsevier B.V. All rights reserved.
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: Quinzani, Oscar Valentín. 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 influence of the pH of electropolymerization solutions on the properties of polypyrrole films has been studied using potentiodynamic techniques and faradaic impedance spectroscopy. Scanning electron microscopy (SEM), IR and Raman spectroscopies, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) were also used for products characterization. Results indicate that, contrary to what happen with the polymer electrogenerated in acid solutions, the films prepared in alkaline media are stable and present good electrochemical activity in basic solutions. Possible explanations for the observed differences are discussed and it is proposed that the pH of electropolymerization medium directly affects chains organization. Electrosynthesis in solutions of increased basicity results in a more compact and closed polymer structure. © 2009 Elsevier B.V. All rights reserved.
publishDate 2009
dc.date.none.fl_str_mv 2009-09
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/11336/70379
Lehr, Ivana Leticia; Quinzani, Oscar Valentín; Saidman, Silvana Beatriz; Comparative study of polypyrrole films electrosynthesized in alkaline and acid solutions; Elsevier Science Sa; Materials Chemistry and Physics; 117; 1; 9-2009; 250-256
0254-0584
CONICET Digital
CONICET
url http://hdl.handle.net/11336/70379
identifier_str_mv Lehr, Ivana Leticia; Quinzani, Oscar Valentín; Saidman, Silvana Beatriz; Comparative study of polypyrrole films electrosynthesized in alkaline and acid solutions; Elsevier Science Sa; Materials Chemistry and Physics; 117; 1; 9-2009; 250-256
0254-0584
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.matchemphys.2009.05.053
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0254058409003149
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
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science Sa
publisher.none.fl_str_mv Elsevier Science Sa
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 12.982451

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