Impedance of Aqueous Solutions of KCl at the Ultra-low Frequency Range: Use of Cole-Cole Impedance Element to Account for the Frequency Dispersion Peak at 20 mHz

Detalhes bibliográficos
Autor(a) principal: Giacometti, José A.
Data de Publicação: 2016
Outros Autores: Alves, Neri [UNESP], Teruya, Márcia Y. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1007/s13538-015-0381-4
http://hdl.handle.net/11449/177700
Resumo: This paper reports on the analysis of dispersion in the imaginary part of impedance often observed at low frequencies in a variety of systems. The experimental data were obtained with an electrolytic cell containing KCl aqueous solution in the frequency range from 0.1 mHz to 10 MHz, where the use of ultra-low frequencies helps clarify the analysis of the imaginary impedance dispersion. It is shown that the low frequency dispersion described in the literature is the tail of a relaxation peak located at f ≅ 20 mHz. This ultra-low frequency dispersion peak is analyzed with a Cole-Cole impedance element, being associated with the electric double layer at the metal-electrolyte interface. Quantitative information can be extracted for the double layer, including its thickness (∼1 nm) and electrical resistivity (∼50 GΩm).
id UNSP_0a9c316fe31e1506e54517044fae15a1
oai_identifier_str oai:repositorio.unesp.br:11449/177700
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Impedance of Aqueous Solutions of KCl at the Ultra-low Frequency Range: Use of Cole-Cole Impedance Element to Account for the Frequency Dispersion Peak at 20 mHzElectric double layerElectrolytic solutionImpedance measurementsMetal-electrolyte interfaceUltra-low frequencyThis paper reports on the analysis of dispersion in the imaginary part of impedance often observed at low frequencies in a variety of systems. The experimental data were obtained with an electrolytic cell containing KCl aqueous solution in the frequency range from 0.1 mHz to 10 MHz, where the use of ultra-low frequencies helps clarify the analysis of the imaginary impedance dispersion. It is shown that the low frequency dispersion described in the literature is the tail of a relaxation peak located at f ≅ 20 mHz. This ultra-low frequency dispersion peak is analyzed with a Cole-Cole impedance element, being associated with the electric double layer at the metal-electrolyte interface. Quantitative information can be extracted for the double layer, including its thickness (∼1 nm) and electrical resistivity (∼50 GΩm).Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Instituto de Física de São Carlos USPFaculdade de Ciências e Tecnologia UNESPFaculdade de Ciências e Tecnologia UNESPUniversidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)Giacometti, José A.Alves, Neri [UNESP]Teruya, Márcia Y. [UNESP]2018-12-11T17:26:41Z2018-12-11T17:26:41Z2016-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article50-55application/pdfhttp://dx.doi.org/10.1007/s13538-015-0381-4Brazilian Journal of Physics, v. 46, n. 1, p. 50-55, 2016.1678-44480103-9733http://hdl.handle.net/11449/17770010.1007/s13538-015-0381-42-s2.0-849534393892-s2.0-84953439389.pdf7607651111619269Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal of Physics0,276info:eu-repo/semantics/openAccess2024-06-19T12:44:32Zoai:repositorio.unesp.br:11449/177700Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:02:22.472214Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Impedance of Aqueous Solutions of KCl at the Ultra-low Frequency Range: Use of Cole-Cole Impedance Element to Account for the Frequency Dispersion Peak at 20 mHz
title Impedance of Aqueous Solutions of KCl at the Ultra-low Frequency Range: Use of Cole-Cole Impedance Element to Account for the Frequency Dispersion Peak at 20 mHz
spellingShingle Impedance of Aqueous Solutions of KCl at the Ultra-low Frequency Range: Use of Cole-Cole Impedance Element to Account for the Frequency Dispersion Peak at 20 mHz
Giacometti, José A.
Electric double layer
Electrolytic solution
Impedance measurements
Metal-electrolyte interface
Ultra-low frequency
title_short Impedance of Aqueous Solutions of KCl at the Ultra-low Frequency Range: Use of Cole-Cole Impedance Element to Account for the Frequency Dispersion Peak at 20 mHz
title_full Impedance of Aqueous Solutions of KCl at the Ultra-low Frequency Range: Use of Cole-Cole Impedance Element to Account for the Frequency Dispersion Peak at 20 mHz
title_fullStr Impedance of Aqueous Solutions of KCl at the Ultra-low Frequency Range: Use of Cole-Cole Impedance Element to Account for the Frequency Dispersion Peak at 20 mHz
title_full_unstemmed Impedance of Aqueous Solutions of KCl at the Ultra-low Frequency Range: Use of Cole-Cole Impedance Element to Account for the Frequency Dispersion Peak at 20 mHz
title_sort Impedance of Aqueous Solutions of KCl at the Ultra-low Frequency Range: Use of Cole-Cole Impedance Element to Account for the Frequency Dispersion Peak at 20 mHz
author Giacometti, José A.
author_facet Giacometti, José A.
Alves, Neri [UNESP]
Teruya, Márcia Y. [UNESP]
author_role author
author2 Alves, Neri [UNESP]
Teruya, Márcia Y. [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade de São Paulo (USP)
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Giacometti, José A.
Alves, Neri [UNESP]
Teruya, Márcia Y. [UNESP]
dc.subject.por.fl_str_mv Electric double layer
Electrolytic solution
Impedance measurements
Metal-electrolyte interface
Ultra-low frequency
topic Electric double layer
Electrolytic solution
Impedance measurements
Metal-electrolyte interface
Ultra-low frequency
description This paper reports on the analysis of dispersion in the imaginary part of impedance often observed at low frequencies in a variety of systems. The experimental data were obtained with an electrolytic cell containing KCl aqueous solution in the frequency range from 0.1 mHz to 10 MHz, where the use of ultra-low frequencies helps clarify the analysis of the imaginary impedance dispersion. It is shown that the low frequency dispersion described in the literature is the tail of a relaxation peak located at f ≅ 20 mHz. This ultra-low frequency dispersion peak is analyzed with a Cole-Cole impedance element, being associated with the electric double layer at the metal-electrolyte interface. Quantitative information can be extracted for the double layer, including its thickness (∼1 nm) and electrical resistivity (∼50 GΩm).
publishDate 2016
dc.date.none.fl_str_mv 2016-02-01
2018-12-11T17:26:41Z
2018-12-11T17:26:41Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1007/s13538-015-0381-4
Brazilian Journal of Physics, v. 46, n. 1, p. 50-55, 2016.
1678-4448
0103-9733
http://hdl.handle.net/11449/177700
10.1007/s13538-015-0381-4
2-s2.0-84953439389
2-s2.0-84953439389.pdf
7607651111619269
url http://dx.doi.org/10.1007/s13538-015-0381-4
http://hdl.handle.net/11449/177700
identifier_str_mv Brazilian Journal of Physics, v. 46, n. 1, p. 50-55, 2016.
1678-4448
0103-9733
10.1007/s13538-015-0381-4
2-s2.0-84953439389
2-s2.0-84953439389.pdf
7607651111619269
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Brazilian Journal of Physics
0,276
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 50-55
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128887945691136