pH dependence of the voltammetric response of Polyaniline
- Autores
- Scotto, Juliana; Florit, María Inés; 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 3.7Msulphate 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'smodel, 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 b pH b 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.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas - Materia
-
Química
Polyaniline
Voltammetry
pH dependence - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/118313
Ver los metadatos del registro completo
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pH dependence of the voltammetric response of PolyanilineScotto, JulianaFlorit, María InésPosadas, DionisioQuímicaPolyanilineVoltammetrypH dependenceVoltammetric studies of Polyaniline (Pani) films were carried out in solutions of 3.7Msulphate 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'smodel, 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 b pH b 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.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf14-19http://sedici.unlp.edu.ar/handle/10915/118313enginfo:eu-repo/semantics/altIdentifier/issn/1572-6657info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jelechem.2016.11.066info: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:UNLP2025-09-03T10:59:56Zoai:sedici.unlp.edu.ar:10915/118313Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:59:57.079SEDICI (UNLP) - Universidad Nacional de La Platafalse |
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 Química Polyaniline Voltammetry pH dependence |
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, María Inés Posadas, Dionisio |
author |
Scotto, Juliana |
author_facet |
Scotto, Juliana Florit, María Inés Posadas, Dionisio |
author_role |
author |
author2 |
Florit, María Inés Posadas, Dionisio |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Química Polyaniline Voltammetry pH dependence |
topic |
Química Polyaniline Voltammetry pH dependence |
dc.description.none.fl_txt_mv |
Voltammetric studies of Polyaniline (Pani) films were carried out in solutions of 3.7Msulphate 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'smodel, 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 b pH b 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. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas |
description |
Voltammetric studies of Polyaniline (Pani) films were carried out in solutions of 3.7Msulphate 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'smodel, 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 b pH b 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 |
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/10915/118313 |
url |
http://sedici.unlp.edu.ar/handle/10915/118313 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/1572-6657 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jelechem.2016.11.066 |
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) |
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application/pdf 14-19 |
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reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
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Universidad Nacional de La Plata |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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