Low-Frequency Dielectric Dispersion in Colloidal Suspensions of Uncharged Insulating Particles

Autores
Grosse, Constantino; Lopez Garcia, J. J.; J. Horno
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The standard electrokinetic equations for a spherical uncharged insulating particle suspended in a binary electrolyte solution with an applied AC electric field are analytically solved in the general case when both the ion diffusion coefficients and valences have arbitrary values. It is shown that under these conditions, the field-induced ion density profiles extend at low frequencies at far larger distances from the particle than in the case when both diffusion coefficients have the same value. The corresponding induced charge density modifies the dipolar coefficient leading to an additional low-frequency dielectric dispersion.
Fil: Grosse, Constantino. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física; Argentina
Fil: Lopez Garcia, J. J.. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
Fil: J. Horno. Universidad de Jaén; España
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:11336/101979
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Low-Frequency Dielectric Dispersion in Colloidal Suspensions of Uncharged Insulating ParticlesGrosse, ConstantinoLopez Garcia, J. J.J. Hornohttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The standard electrokinetic equations for a spherical uncharged insulating particle suspended in a binary electrolyte solution with an applied AC electric field are analytically solved in the general case when both the ion diffusion coefficients and valences have arbitrary values. It is shown that under these conditions, the field-induced ion density profiles extend at low frequencies at far larger distances from the particle than in the case when both diffusion coefficients have the same value. The corresponding induced charge density modifies the dipolar coefficient leading to an additional low-frequency dielectric dispersion.Fil: Grosse, Constantino. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física; ArgentinaFil: Lopez Garcia, J. J.. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; ArgentinaFil: J. Horno. Universidad de Jaén; EspañaAmerican Chemical Society2004-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/101979Grosse, Constantino; Lopez Garcia, J. J.; J. Horno; Low-Frequency Dielectric Dispersion in Colloidal Suspensions of Uncharged Insulating Particles; American Chemical Society; Journal of Physical Chemistry B; 108; 24; 12-2004; 8397-84001089-5647CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/pdf/10.1021/jp049382binfo:eu-repo/semantics/altIdentifier/doi/10.1021/jp049382binfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:40:38Zoai:ri.conicet.gov.ar:11336/101979instacron: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 09:40:39.158CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Low-Frequency Dielectric Dispersion in Colloidal Suspensions of Uncharged Insulating Particles
title Low-Frequency Dielectric Dispersion in Colloidal Suspensions of Uncharged Insulating Particles
spellingShingle Low-Frequency Dielectric Dispersion in Colloidal Suspensions of Uncharged Insulating Particles
Grosse, Constantino
title_short Low-Frequency Dielectric Dispersion in Colloidal Suspensions of Uncharged Insulating Particles
title_full Low-Frequency Dielectric Dispersion in Colloidal Suspensions of Uncharged Insulating Particles
title_fullStr Low-Frequency Dielectric Dispersion in Colloidal Suspensions of Uncharged Insulating Particles
title_full_unstemmed Low-Frequency Dielectric Dispersion in Colloidal Suspensions of Uncharged Insulating Particles
title_sort Low-Frequency Dielectric Dispersion in Colloidal Suspensions of Uncharged Insulating Particles
dc.creator.none.fl_str_mv Grosse, Constantino
Lopez Garcia, J. J.
J. Horno
author Grosse, Constantino
author_facet Grosse, Constantino
Lopez Garcia, J. J.
J. Horno
author_role author
author2 Lopez Garcia, J. J.
J. Horno
author2_role author
author
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The standard electrokinetic equations for a spherical uncharged insulating particle suspended in a binary electrolyte solution with an applied AC electric field are analytically solved in the general case when both the ion diffusion coefficients and valences have arbitrary values. It is shown that under these conditions, the field-induced ion density profiles extend at low frequencies at far larger distances from the particle than in the case when both diffusion coefficients have the same value. The corresponding induced charge density modifies the dipolar coefficient leading to an additional low-frequency dielectric dispersion.
Fil: Grosse, Constantino. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física; Argentina
Fil: Lopez Garcia, J. J.. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
Fil: J. Horno. Universidad de Jaén; España
description The standard electrokinetic equations for a spherical uncharged insulating particle suspended in a binary electrolyte solution with an applied AC electric field are analytically solved in the general case when both the ion diffusion coefficients and valences have arbitrary values. It is shown that under these conditions, the field-induced ion density profiles extend at low frequencies at far larger distances from the particle than in the case when both diffusion coefficients have the same value. The corresponding induced charge density modifies the dipolar coefficient leading to an additional low-frequency dielectric dispersion.
publishDate 2004
dc.date.none.fl_str_mv 2004-12
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/11336/101979
Grosse, Constantino; Lopez Garcia, J. J.; J. Horno; Low-Frequency Dielectric Dispersion in Colloidal Suspensions of Uncharged Insulating Particles; American Chemical Society; Journal of Physical Chemistry B; 108; 24; 12-2004; 8397-8400
1089-5647
CONICET Digital
CONICET
url http://hdl.handle.net/11336/101979
identifier_str_mv Grosse, Constantino; Lopez Garcia, J. J.; J. Horno; Low-Frequency Dielectric Dispersion in Colloidal Suspensions of Uncharged Insulating Particles; American Chemical Society; Journal of Physical Chemistry B; 108; 24; 12-2004; 8397-8400
1089-5647
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/pdf/10.1021/jp049382b
info:eu-repo/semantics/altIdentifier/doi/10.1021/jp049382b
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
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
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 13.070432

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