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
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
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). |
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Repositório Institucional da UNESP |
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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 |