pH dependence of the voltammetric response of Polyaniline
- Autores
- Scotto, Juliana; Florit, Maria Ines; Posadas, Dionisio
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Voltammetric studies of Polyaniline (Pani) films were carried out in solutions of 3.7 M sulphate solutions of constant ionic strength and pH values comprised in the range between − 0.6 and 3.0. The results show that if the voltammetric results are properly corrected by capacitive currents, according to Feldberg´s model, it will be possible to obtain the potential dependence of the faradaic oxidation degree. The integrated anodic and cathodic charges are practically equal and independent of the electrolyte pH, in the range − 0.6 < pH < 2.0. The pH dependence of the current peaks is qualitatively explained by the change in the interactions between the redox centres as a consequence of the changes in their protonation.
Fil: Scotto, Juliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Florit, Maria Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Posadas, Dionisio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina - Materia
-
PH DEPENDENCE
POLYANILINE
VOLTAMMETRY - 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:11336/151848
Ver los metadatos del registro completo
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pH dependence of the voltammetric response of PolyanilineScotto, JulianaFlorit, Maria InesPosadas, DionisioPH DEPENDENCEPOLYANILINEVOLTAMMETRYhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Voltammetric studies of Polyaniline (Pani) films were carried out in solutions of 3.7 M sulphate solutions of constant ionic strength and pH values comprised in the range between − 0.6 and 3.0. The results show that if the voltammetric results are properly corrected by capacitive currents, according to Feldberg´s model, it will be possible to obtain the potential dependence of the faradaic oxidation degree. The integrated anodic and cathodic charges are practically equal and independent of the electrolyte pH, in the range − 0.6 < pH < 2.0. The pH dependence of the current peaks is qualitatively explained by the change in the interactions between the redox centres as a consequence of the changes in their protonation.Fil: Scotto, Juliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Florit, Maria Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Posadas, Dionisio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaElsevier Science SA2017-01info: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/11336/151848Scotto, Juliana; Florit, Maria Ines; Posadas, Dionisio; pH dependence of the voltammetric response of Polyaniline; Elsevier Science SA; Journal of Electroanalytical Chemistry; 785; 1-2017; 14-191572-6657CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jelechem.2016.11.066info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S1572665716306944info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:52:01Zoai:ri.conicet.gov.ar:11336/151848instacron: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 09:52:01.402CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
pH dependence of the voltammetric response of Polyaniline |
title |
pH dependence of the voltammetric response of Polyaniline |
spellingShingle |
pH dependence of the voltammetric response of Polyaniline Scotto, Juliana PH DEPENDENCE POLYANILINE VOLTAMMETRY |
title_short |
pH dependence of the voltammetric response of Polyaniline |
title_full |
pH dependence of the voltammetric response of Polyaniline |
title_fullStr |
pH dependence of the voltammetric response of Polyaniline |
title_full_unstemmed |
pH dependence of the voltammetric response of Polyaniline |
title_sort |
pH dependence of the voltammetric response of Polyaniline |
dc.creator.none.fl_str_mv |
Scotto, Juliana Florit, Maria Ines Posadas, Dionisio |
author |
Scotto, Juliana |
author_facet |
Scotto, Juliana Florit, Maria Ines Posadas, Dionisio |
author_role |
author |
author2 |
Florit, Maria Ines Posadas, Dionisio |
author2_role |
author author |
dc.subject.none.fl_str_mv |
PH DEPENDENCE POLYANILINE VOLTAMMETRY |
topic |
PH DEPENDENCE POLYANILINE VOLTAMMETRY |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Voltammetric studies of Polyaniline (Pani) films were carried out in solutions of 3.7 M sulphate solutions of constant ionic strength and pH values comprised in the range between − 0.6 and 3.0. The results show that if the voltammetric results are properly corrected by capacitive currents, according to Feldberg´s model, it will be possible to obtain the potential dependence of the faradaic oxidation degree. The integrated anodic and cathodic charges are practically equal and independent of the electrolyte pH, in the range − 0.6 < pH < 2.0. The pH dependence of the current peaks is qualitatively explained by the change in the interactions between the redox centres as a consequence of the changes in their protonation. Fil: Scotto, Juliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina Fil: Florit, Maria Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina Fil: Posadas, Dionisio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina |
description |
Voltammetric studies of Polyaniline (Pani) films were carried out in solutions of 3.7 M sulphate solutions of constant ionic strength and pH values comprised in the range between − 0.6 and 3.0. The results show that if the voltammetric results are properly corrected by capacitive currents, according to Feldberg´s model, it will be possible to obtain the potential dependence of the faradaic oxidation degree. The integrated anodic and cathodic charges are practically equal and independent of the electrolyte pH, in the range − 0.6 < pH < 2.0. The pH dependence of the current peaks is qualitatively explained by the change in the interactions between the redox centres as a consequence of the changes in their protonation. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01 |
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/11336/151848 Scotto, Juliana; Florit, Maria Ines; Posadas, Dionisio; pH dependence of the voltammetric response of Polyaniline; Elsevier Science SA; Journal of Electroanalytical Chemistry; 785; 1-2017; 14-19 1572-6657 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/151848 |
identifier_str_mv |
Scotto, Juliana; Florit, Maria Ines; Posadas, Dionisio; pH dependence of the voltammetric response of Polyaniline; Elsevier Science SA; Journal of Electroanalytical Chemistry; 785; 1-2017; 14-19 1572-6657 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.jelechem.2016.11.066 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S1572665716306944 |
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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1844613596719349760 |
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13.070432 |