Proton and cesium conductivity in perfluorosulfonate ionomers at low and high relative humidity

Autores
Matos, Bruno R.; da Silva, Jaqueline S.; Santiago, Elisabete I.; Parra, Duclerc F.; Carastan, Danilo J.; de Florio, Daniel Z.; Andrada, Heber Eduardo; Carreras, Alejo Cristian; Fonseca, Fabio C.
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Nafion exhibits one of the highest proton conductivity at room temperature and it is the standard electrolyte of proton exchange membrane fuel cells (PEMFC). However, the temperature dependence of ionic conductivity of Nation is highly dependent on the measuring conditions and it is still a matter of debate. In the present study, detailed dielectric spectroscopy (DS) measurements in both dry (under N2 flow) and water-saturated conditions were carried out in a broad range of temperature and frequency. Such DS results were correlated to differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) data taken in similar conditions. The main results revealed that in samples conditioned in N2 flow (RH ~ 0%) the transport of both proton and cesium ions is coordinated with the dynamics of Nafion relaxations. In hydrated Nafion (proton form), conductivity measurements at different frequencies revealed two regimes: one at high-frequency, in which the Vogel-Tamman-Fulcher (VTF) law indicates a close relation between the polymer glass transition temperature Tg; and, a second one at low frequency, bearing great similarity to the transport observed in nearly dry samples. The reported experimental results contribute to disentangle the intricate transport properties of Nafion.
Fil: Matos, Bruno R.. Comissao Nacional de Energia Nuclear. Centro de Lasers e Aplicacoes. Instituto de Pesquisas Energeticas e Nucleares.; Brasil
Fil: da Silva, Jaqueline S.. Comissao Nacional de Energia Nuclear. Centro de Lasers e Aplicacoes. Instituto de Pesquisas Energeticas e Nucleares.; Brasil
Fil: Santiago, Elisabete I.. Comissao Nacional de Energia Nuclear. Centro de Lasers e Aplicacoes. Instituto de Pesquisas Energeticas e Nucleares.; Brasil
Fil: Parra, Duclerc F.. Comissao Nacional de Energia Nuclear. Centro de Lasers e Aplicacoes. Instituto de Pesquisas Energeticas e Nucleares.; Brasil
Fil: Carastan, Danilo J.. Universidade Federal do ABC; Brasil
Fil: de Florio, Daniel Z.. Universidade Federal do ABC; Brasil
Fil: Andrada, Heber Eduardo. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Carreras, Alejo Cristian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina
Fil: Fonseca, Fabio C.. Comissao Nacional de Energia Nuclear. Centro de Lasers e Aplicacoes. Instituto de Pesquisas Energeticas e Nucleares.; Brasil
Materia
Charge Transport
Electrochemistry
Ionomers
Membranes
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:11336/64649
Acceder
id CONICETDig_a3deb146acb3b615930678195be32225
oai_identifier_str oai:ri.conicet.gov.ar:11336/64649
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Proton and cesium conductivity in perfluorosulfonate ionomers at low and high relative humidityMatos, Bruno R.da Silva, Jaqueline S.Santiago, Elisabete I.Parra, Duclerc F.Carastan, Danilo J.de Florio, Daniel Z.Andrada, Heber EduardoCarreras, Alejo CristianFonseca, Fabio C.Charge TransportElectrochemistryIonomersMembraneshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Nafion exhibits one of the highest proton conductivity at room temperature and it is the standard electrolyte of proton exchange membrane fuel cells (PEMFC). However, the temperature dependence of ionic conductivity of Nation is highly dependent on the measuring conditions and it is still a matter of debate. In the present study, detailed dielectric spectroscopy (DS) measurements in both dry (under N2 flow) and water-saturated conditions were carried out in a broad range of temperature and frequency. Such DS results were correlated to differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) data taken in similar conditions. The main results revealed that in samples conditioned in N2 flow (RH ~ 0%) the transport of both proton and cesium ions is coordinated with the dynamics of Nafion relaxations. In hydrated Nafion (proton form), conductivity measurements at different frequencies revealed two regimes: one at high-frequency, in which the Vogel-Tamman-Fulcher (VTF) law indicates a close relation between the polymer glass transition temperature Tg; and, a second one at low frequency, bearing great similarity to the transport observed in nearly dry samples. The reported experimental results contribute to disentangle the intricate transport properties of Nafion.Fil: Matos, Bruno R.. Comissao Nacional de Energia Nuclear. Centro de Lasers e Aplicacoes. Instituto de Pesquisas Energeticas e Nucleares.; BrasilFil: da Silva, Jaqueline S.. Comissao Nacional de Energia Nuclear. Centro de Lasers e Aplicacoes. Instituto de Pesquisas Energeticas e Nucleares.; BrasilFil: Santiago, Elisabete I.. Comissao Nacional de Energia Nuclear. Centro de Lasers e Aplicacoes. Instituto de Pesquisas Energeticas e Nucleares.; BrasilFil: Parra, Duclerc F.. Comissao Nacional de Energia Nuclear. Centro de Lasers e Aplicacoes. Instituto de Pesquisas Energeticas e Nucleares.; BrasilFil: Carastan, Danilo J.. Universidade Federal do ABC; BrasilFil: de Florio, Daniel Z.. Universidade Federal do ABC; BrasilFil: Andrada, Heber Eduardo. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; ArgentinaFil: Carreras, Alejo Cristian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; ArgentinaFil: Fonseca, Fabio C.. Comissao Nacional de Energia Nuclear. Centro de Lasers e Aplicacoes. Instituto de Pesquisas Energeticas e Nucleares.; BrasilElsevier Science2017-03info: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/11336/64649Matos, Bruno R.; da Silva, Jaqueline S.; Santiago, Elisabete I.; Parra, Duclerc F.; Carastan, Danilo J.; et al.; Proton and cesium conductivity in perfluorosulfonate ionomers at low and high relative humidity; Elsevier Science; Solid State Ionics; 301; 3-2017; 86-940167-27381872-7689CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.ssi.2017.01.019info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0167273815301569info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-12-23T13:11:28Zoai:ri.conicet.gov.ar:11336/64649instacron: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:34982025-12-23 13:11:28.587CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Proton and cesium conductivity in perfluorosulfonate ionomers at low and high relative humidity
title Proton and cesium conductivity in perfluorosulfonate ionomers at low and high relative humidity
spellingShingle Proton and cesium conductivity in perfluorosulfonate ionomers at low and high relative humidity
Matos, Bruno R.
Charge Transport
Electrochemistry
Ionomers
Membranes
title_short Proton and cesium conductivity in perfluorosulfonate ionomers at low and high relative humidity
title_full Proton and cesium conductivity in perfluorosulfonate ionomers at low and high relative humidity
title_fullStr Proton and cesium conductivity in perfluorosulfonate ionomers at low and high relative humidity
title_full_unstemmed Proton and cesium conductivity in perfluorosulfonate ionomers at low and high relative humidity
title_sort Proton and cesium conductivity in perfluorosulfonate ionomers at low and high relative humidity
dc.creator.none.fl_str_mv Matos, Bruno R.
da Silva, Jaqueline S.
Santiago, Elisabete I.
Parra, Duclerc F.
Carastan, Danilo J.
de Florio, Daniel Z.
Andrada, Heber Eduardo
Carreras, Alejo Cristian
Fonseca, Fabio C.
author Matos, Bruno R.
author_facet Matos, Bruno R.
da Silva, Jaqueline S.
Santiago, Elisabete I.
Parra, Duclerc F.
Carastan, Danilo J.
de Florio, Daniel Z.
Andrada, Heber Eduardo
Carreras, Alejo Cristian
Fonseca, Fabio C.
author_role author
author2 da Silva, Jaqueline S.
Santiago, Elisabete I.
Parra, Duclerc F.
Carastan, Danilo J.
de Florio, Daniel Z.
Andrada, Heber Eduardo
Carreras, Alejo Cristian
Fonseca, Fabio C.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Charge Transport
Electrochemistry
Ionomers
Membranes
topic Charge Transport
Electrochemistry
Ionomers
Membranes
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Nafion exhibits one of the highest proton conductivity at room temperature and it is the standard electrolyte of proton exchange membrane fuel cells (PEMFC). However, the temperature dependence of ionic conductivity of Nation is highly dependent on the measuring conditions and it is still a matter of debate. In the present study, detailed dielectric spectroscopy (DS) measurements in both dry (under N2 flow) and water-saturated conditions were carried out in a broad range of temperature and frequency. Such DS results were correlated to differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) data taken in similar conditions. The main results revealed that in samples conditioned in N2 flow (RH ~ 0%) the transport of both proton and cesium ions is coordinated with the dynamics of Nafion relaxations. In hydrated Nafion (proton form), conductivity measurements at different frequencies revealed two regimes: one at high-frequency, in which the Vogel-Tamman-Fulcher (VTF) law indicates a close relation between the polymer glass transition temperature Tg; and, a second one at low frequency, bearing great similarity to the transport observed in nearly dry samples. The reported experimental results contribute to disentangle the intricate transport properties of Nafion.
Fil: Matos, Bruno R.. Comissao Nacional de Energia Nuclear. Centro de Lasers e Aplicacoes. Instituto de Pesquisas Energeticas e Nucleares.; Brasil
Fil: da Silva, Jaqueline S.. Comissao Nacional de Energia Nuclear. Centro de Lasers e Aplicacoes. Instituto de Pesquisas Energeticas e Nucleares.; Brasil
Fil: Santiago, Elisabete I.. Comissao Nacional de Energia Nuclear. Centro de Lasers e Aplicacoes. Instituto de Pesquisas Energeticas e Nucleares.; Brasil
Fil: Parra, Duclerc F.. Comissao Nacional de Energia Nuclear. Centro de Lasers e Aplicacoes. Instituto de Pesquisas Energeticas e Nucleares.; Brasil
Fil: Carastan, Danilo J.. Universidade Federal do ABC; Brasil
Fil: de Florio, Daniel Z.. Universidade Federal do ABC; Brasil
Fil: Andrada, Heber Eduardo. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Carreras, Alejo Cristian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina
Fil: Fonseca, Fabio C.. Comissao Nacional de Energia Nuclear. Centro de Lasers e Aplicacoes. Instituto de Pesquisas Energeticas e Nucleares.; Brasil
description Nafion exhibits one of the highest proton conductivity at room temperature and it is the standard electrolyte of proton exchange membrane fuel cells (PEMFC). However, the temperature dependence of ionic conductivity of Nation is highly dependent on the measuring conditions and it is still a matter of debate. In the present study, detailed dielectric spectroscopy (DS) measurements in both dry (under N2 flow) and water-saturated conditions were carried out in a broad range of temperature and frequency. Such DS results were correlated to differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) data taken in similar conditions. The main results revealed that in samples conditioned in N2 flow (RH ~ 0%) the transport of both proton and cesium ions is coordinated with the dynamics of Nafion relaxations. In hydrated Nafion (proton form), conductivity measurements at different frequencies revealed two regimes: one at high-frequency, in which the Vogel-Tamman-Fulcher (VTF) law indicates a close relation between the polymer glass transition temperature Tg; and, a second one at low frequency, bearing great similarity to the transport observed in nearly dry samples. The reported experimental results contribute to disentangle the intricate transport properties of Nafion.
publishDate 2017
dc.date.none.fl_str_mv 2017-03
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/11336/64649
Matos, Bruno R.; da Silva, Jaqueline S.; Santiago, Elisabete I.; Parra, Duclerc F.; Carastan, Danilo J.; et al.; Proton and cesium conductivity in perfluorosulfonate ionomers at low and high relative humidity; Elsevier Science; Solid State Ionics; 301; 3-2017; 86-94
0167-2738
1872-7689
CONICET Digital
CONICET
url http://hdl.handle.net/11336/64649
identifier_str_mv Matos, Bruno R.; da Silva, Jaqueline S.; Santiago, Elisabete I.; Parra, Duclerc F.; Carastan, Danilo J.; et al.; Proton and cesium conductivity in perfluorosulfonate ionomers at low and high relative humidity; Elsevier Science; Solid State Ionics; 301; 3-2017; 86-94
0167-2738
1872-7689
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.ssi.2017.01.019
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0167273815301569
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
publisher.none.fl_str_mv Elsevier Science
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 12.952241

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