Redox transformation of poly(o-aminophenol) (POAP) under continuous potential cycling

Autores
Tucceri, Ismael Ricardo
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The aim of this work was to study the effect of prolonged potentiodynamic cycling (PPC) on the conducting properties of poly(oaminophenol) (POAP) film electrodes. PPC reduces strongly the electron and ion transport rates at POAP films. This effect is called here deactivation. Cyclic Voltammetry (CV), Rotating Disc Electrode Voltammetry (RDEV) and Electrochemical Impedance Spectroscopy (EIS) were employed in this study. The attenuation of the voltammetric response of the polymer with the increase in the number of oxidation-reduction cycles allowed one to define a degree of deactivation. RDEV and EIS were employed to obtain dependences of charge-transport and charge-transfer parameters on the degree of deactivation of the polymer. RDEV data were interpreted on the basis of the electron hopping model. Impedance spectra of POAP films in the presence of an electroactive solution containing p-benzoquinone (Q) and hydroquinone (HQ) species were analyzed on the basis of an impedance model which considers a uniform and nonporous polymer film and no penetration of redox species into the film from the solution While diffusion coefficients for electron (De) and ion (Di) transport decrease, interfacial resistances related to ion (Ri f s) and electron (Rm f, Ref s) transfer across the different interfaces involved in the metal/polymer film/solution system increase as the degree of deactivation increases. The slower electron transport with the increase in the degree of deactivation was attributed to the increase of the electron hopping distance between redox sites. Transport parameters, such as, Rif s and Di, were associated with proton movements. POAP films maintain their conducting properties almost unaltered for about 500 potential cycles at a scan rate of 0.010 V s-1. However, a loss of conductivity was observed as the number of potential cycles was extended beyond 500.
Fil: Tucceri, Ismael Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina
Fuente
International Congress of Science and Technology of Metallurgy and Materials, SAM - CONAMET 2013
Materia
POLY(O-AMINOPHENOL) FILM ELECTRODES
PROLONGED POTENTIAL CYCLING (PPC)
DEACTIVATION
CHARGE-TRANSPORT AND CHARGE-TRANSFER PARAMETERS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/5041

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network_name_str CONICET Digital (CONICET)
spelling Redox transformation of poly(o-aminophenol) (POAP) under continuous potential cyclingTucceri, Ismael RicardoPOLY(O-AMINOPHENOL) FILM ELECTRODESPROLONGED POTENTIAL CYCLING (PPC)DEACTIVATIONCHARGE-TRANSPORT AND CHARGE-TRANSFER PARAMETERShttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The aim of this work was to study the effect of prolonged potentiodynamic cycling (PPC) on the conducting properties of poly(oaminophenol) (POAP) film electrodes. PPC reduces strongly the electron and ion transport rates at POAP films. This effect is called here deactivation. Cyclic Voltammetry (CV), Rotating Disc Electrode Voltammetry (RDEV) and Electrochemical Impedance Spectroscopy (EIS) were employed in this study. The attenuation of the voltammetric response of the polymer with the increase in the number of oxidation-reduction cycles allowed one to define a degree of deactivation. RDEV and EIS were employed to obtain dependences of charge-transport and charge-transfer parameters on the degree of deactivation of the polymer. RDEV data were interpreted on the basis of the electron hopping model. Impedance spectra of POAP films in the presence of an electroactive solution containing p-benzoquinone (Q) and hydroquinone (HQ) species were analyzed on the basis of an impedance model which considers a uniform and nonporous polymer film and no penetration of redox species into the film from the solution While diffusion coefficients for electron (De) and ion (Di) transport decrease, interfacial resistances related to ion (Ri f s) and electron (Rm f, Ref s) transfer across the different interfaces involved in the metal/polymer film/solution system increase as the degree of deactivation increases. The slower electron transport with the increase in the degree of deactivation was attributed to the increase of the electron hopping distance between redox sites. Transport parameters, such as, Rif s and Di, were associated with proton movements. POAP films maintain their conducting properties almost unaltered for about 500 potential cycles at a scan rate of 0.010 V s-1. However, a loss of conductivity was observed as the number of potential cycles was extended beyond 500.Fil: Tucceri, Ismael Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; ArgentinaElsevier2015-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5041Tucceri, Ismael Ricardo; Redox transformation of poly(o-aminophenol) (POAP) under continuous potential cycling; Elsevier; Procedia Materials Science; 8; 6-2015; 261-2702211-8128International Congress of Science and Technology of Metallurgy and Materials, SAM - CONAMET 2013reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicasenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S2211812815000735info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1016/j.mspro.2015.04.072info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/2025-09-29T10:36:15Zoai:ri.conicet.gov.ar:11336/5041instacron: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 10:36:15.335CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Redox transformation of poly(o-aminophenol) (POAP) under continuous potential cycling
title Redox transformation of poly(o-aminophenol) (POAP) under continuous potential cycling
spellingShingle Redox transformation of poly(o-aminophenol) (POAP) under continuous potential cycling
Tucceri, Ismael Ricardo
POLY(O-AMINOPHENOL) FILM ELECTRODES
PROLONGED POTENTIAL CYCLING (PPC)
DEACTIVATION
CHARGE-TRANSPORT AND CHARGE-TRANSFER PARAMETERS
title_short Redox transformation of poly(o-aminophenol) (POAP) under continuous potential cycling
title_full Redox transformation of poly(o-aminophenol) (POAP) under continuous potential cycling
title_fullStr Redox transformation of poly(o-aminophenol) (POAP) under continuous potential cycling
title_full_unstemmed Redox transformation of poly(o-aminophenol) (POAP) under continuous potential cycling
title_sort Redox transformation of poly(o-aminophenol) (POAP) under continuous potential cycling
dc.creator.none.fl_str_mv Tucceri, Ismael Ricardo
author Tucceri, Ismael Ricardo
author_facet Tucceri, Ismael Ricardo
author_role author
dc.subject.none.fl_str_mv POLY(O-AMINOPHENOL) FILM ELECTRODES
PROLONGED POTENTIAL CYCLING (PPC)
DEACTIVATION
CHARGE-TRANSPORT AND CHARGE-TRANSFER PARAMETERS
topic POLY(O-AMINOPHENOL) FILM ELECTRODES
PROLONGED POTENTIAL CYCLING (PPC)
DEACTIVATION
CHARGE-TRANSPORT AND CHARGE-TRANSFER PARAMETERS
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 aim of this work was to study the effect of prolonged potentiodynamic cycling (PPC) on the conducting properties of poly(oaminophenol) (POAP) film electrodes. PPC reduces strongly the electron and ion transport rates at POAP films. This effect is called here deactivation. Cyclic Voltammetry (CV), Rotating Disc Electrode Voltammetry (RDEV) and Electrochemical Impedance Spectroscopy (EIS) were employed in this study. The attenuation of the voltammetric response of the polymer with the increase in the number of oxidation-reduction cycles allowed one to define a degree of deactivation. RDEV and EIS were employed to obtain dependences of charge-transport and charge-transfer parameters on the degree of deactivation of the polymer. RDEV data were interpreted on the basis of the electron hopping model. Impedance spectra of POAP films in the presence of an electroactive solution containing p-benzoquinone (Q) and hydroquinone (HQ) species were analyzed on the basis of an impedance model which considers a uniform and nonporous polymer film and no penetration of redox species into the film from the solution While diffusion coefficients for electron (De) and ion (Di) transport decrease, interfacial resistances related to ion (Ri f s) and electron (Rm f, Ref s) transfer across the different interfaces involved in the metal/polymer film/solution system increase as the degree of deactivation increases. The slower electron transport with the increase in the degree of deactivation was attributed to the increase of the electron hopping distance between redox sites. Transport parameters, such as, Rif s and Di, were associated with proton movements. POAP films maintain their conducting properties almost unaltered for about 500 potential cycles at a scan rate of 0.010 V s-1. However, a loss of conductivity was observed as the number of potential cycles was extended beyond 500.
Fil: Tucceri, Ismael Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina
description The aim of this work was to study the effect of prolonged potentiodynamic cycling (PPC) on the conducting properties of poly(oaminophenol) (POAP) film electrodes. PPC reduces strongly the electron and ion transport rates at POAP films. This effect is called here deactivation. Cyclic Voltammetry (CV), Rotating Disc Electrode Voltammetry (RDEV) and Electrochemical Impedance Spectroscopy (EIS) were employed in this study. The attenuation of the voltammetric response of the polymer with the increase in the number of oxidation-reduction cycles allowed one to define a degree of deactivation. RDEV and EIS were employed to obtain dependences of charge-transport and charge-transfer parameters on the degree of deactivation of the polymer. RDEV data were interpreted on the basis of the electron hopping model. Impedance spectra of POAP films in the presence of an electroactive solution containing p-benzoquinone (Q) and hydroquinone (HQ) species were analyzed on the basis of an impedance model which considers a uniform and nonporous polymer film and no penetration of redox species into the film from the solution While diffusion coefficients for electron (De) and ion (Di) transport decrease, interfacial resistances related to ion (Ri f s) and electron (Rm f, Ref s) transfer across the different interfaces involved in the metal/polymer film/solution system increase as the degree of deactivation increases. The slower electron transport with the increase in the degree of deactivation was attributed to the increase of the electron hopping distance between redox sites. Transport parameters, such as, Rif s and Di, were associated with proton movements. POAP films maintain their conducting properties almost unaltered for about 500 potential cycles at a scan rate of 0.010 V s-1. However, a loss of conductivity was observed as the number of potential cycles was extended beyond 500.
publishDate 2015
dc.date.none.fl_str_mv 2015-06
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/11336/5041
Tucceri, Ismael Ricardo; Redox transformation of poly(o-aminophenol) (POAP) under continuous potential cycling; Elsevier; Procedia Materials Science; 8; 6-2015; 261-270
2211-8128
url http://hdl.handle.net/11336/5041
identifier_str_mv Tucceri, Ismael Ricardo; Redox transformation of poly(o-aminophenol) (POAP) under continuous potential cycling; Elsevier; Procedia Materials Science; 8; 6-2015; 261-270
2211-8128
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S2211812815000735
info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.mspro.2015.04.072
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv International Congress of Science and Technology of Metallurgy and Materials, SAM - CONAMET 2013
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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