Renormalized jellium model for charge-stabilized colloidal suspensions

Detalhes bibliográficos
Autor(a) principal: Trizac, Emmanuel
Data de Publicação: 2004
Outros Autores: Levin, Yan
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/101360
Resumo: We introduce a renormalized jellium model to calculate the equation of state for charged colloidal suspensions. An almost perfect agreement with Monte Carlo simulations is found. Our self-consistent approach naturally allows to define the effective charge of particles at finite colloidal density. Although this quantity may differ significantly from its counterpart obtained from the standard Poisson-Boltzmann cell approach, the osmotic pressures for both models are in good agreement. We argue that by construction, the effective charge obtained using the jellium approximation is more appropriate to the study of colloidal interactions. We also discuss a possibility of a fluid-fluid critical point and show how our equation of state can be used to shed light on the surprising results found in recent sedimentation experiments.
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spelling Trizac, EmmanuelLevin, Yan2014-08-19T02:10:29Z20041539-3755http://hdl.handle.net/10183/101360000414383We introduce a renormalized jellium model to calculate the equation of state for charged colloidal suspensions. An almost perfect agreement with Monte Carlo simulations is found. Our self-consistent approach naturally allows to define the effective charge of particles at finite colloidal density. Although this quantity may differ significantly from its counterpart obtained from the standard Poisson-Boltzmann cell approach, the osmotic pressures for both models are in good agreement. We argue that by construction, the effective charge obtained using the jellium approximation is more appropriate to the study of colloidal interactions. We also discuss a possibility of a fluid-fluid critical point and show how our equation of state can be used to shed light on the surprising results found in recent sedimentation experiments.application/pdfengPhysical review. E, Statistical, nonlinear, and soft matter physics. Vol. 69, no. 3 (Mar. 2004), 031403, 4 p.Equação de BoltzmannColóidesPontos criticosEquações de estadoOsmoseEquação de PoissonRenormalizacaoSuspensoesRenormalized jellium model for charge-stabilized colloidal suspensionsEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000414383.pdf000414383.pdfTexto completo (inglês)application/pdf51164http://www.lume.ufrgs.br/bitstream/10183/101360/1/000414383.pdf4fe4ccbcf4067138362de6fe6ede6e89MD51TEXT000414383.pdf.txt000414383.pdf.txtExtracted Texttext/plain19593http://www.lume.ufrgs.br/bitstream/10183/101360/2/000414383.pdf.txt257d448d62acf82a6113d294675c46e8MD52THUMBNAIL000414383.pdf.jpg000414383.pdf.jpgGenerated Thumbnailimage/jpeg2012http://www.lume.ufrgs.br/bitstream/10183/101360/3/000414383.pdf.jpgaa3aefb293fd88c6061769dfc3a3cdcdMD5310183/1013602023-09-02 03:35:44.907313oai:www.lume.ufrgs.br:10183/101360Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-09-02T06:35:44Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Renormalized jellium model for charge-stabilized colloidal suspensions
title Renormalized jellium model for charge-stabilized colloidal suspensions
spellingShingle Renormalized jellium model for charge-stabilized colloidal suspensions
Trizac, Emmanuel
Equação de Boltzmann
Colóides
Pontos criticos
Equações de estado
Osmose
Equação de Poisson
Renormalizacao
Suspensoes
title_short Renormalized jellium model for charge-stabilized colloidal suspensions
title_full Renormalized jellium model for charge-stabilized colloidal suspensions
title_fullStr Renormalized jellium model for charge-stabilized colloidal suspensions
title_full_unstemmed Renormalized jellium model for charge-stabilized colloidal suspensions
title_sort Renormalized jellium model for charge-stabilized colloidal suspensions
author Trizac, Emmanuel
author_facet Trizac, Emmanuel
Levin, Yan
author_role author
author2 Levin, Yan
author2_role author
dc.contributor.author.fl_str_mv Trizac, Emmanuel
Levin, Yan
dc.subject.por.fl_str_mv Equação de Boltzmann
Colóides
Pontos criticos
Equações de estado
Osmose
Equação de Poisson
Renormalizacao
Suspensoes
topic Equação de Boltzmann
Colóides
Pontos criticos
Equações de estado
Osmose
Equação de Poisson
Renormalizacao
Suspensoes
description We introduce a renormalized jellium model to calculate the equation of state for charged colloidal suspensions. An almost perfect agreement with Monte Carlo simulations is found. Our self-consistent approach naturally allows to define the effective charge of particles at finite colloidal density. Although this quantity may differ significantly from its counterpart obtained from the standard Poisson-Boltzmann cell approach, the osmotic pressures for both models are in good agreement. We argue that by construction, the effective charge obtained using the jellium approximation is more appropriate to the study of colloidal interactions. We also discuss a possibility of a fluid-fluid critical point and show how our equation of state can be used to shed light on the surprising results found in recent sedimentation experiments.
publishDate 2004
dc.date.issued.fl_str_mv 2004
dc.date.accessioned.fl_str_mv 2014-08-19T02:10:29Z
dc.type.driver.fl_str_mv Estrangeiro
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/101360
dc.identifier.issn.pt_BR.fl_str_mv 1539-3755
dc.identifier.nrb.pt_BR.fl_str_mv 000414383
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Physical review. E, Statistical, nonlinear, and soft matter physics. Vol. 69, no. 3 (Mar. 2004), 031403, 4 p.
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