Scaling behavior of adsorption on patchwise bivariate surfaces revisited

Autores
Bulnes, Fernando Manuel; Ramirez Pastor, Antonio Jose; Zgrablich, Jorge Andres
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The adsorption of gases on patchwise heterogeneous bivariate surfaces is studied. These surfaces are characterized by a collection of strong and weak adsorbing patches with a typical length scale l. Different forms and spatial arrangements of these patches determine different topographies characterized by an effective length, leff = σl, where σ takes values from 1 to 4 for the different topographies considered here. Previous studies showed that the mean square deviation between isotherms corresponding to different values of leff scaled as a power law with exponent α, without providing any physical interpretation of such behavior. In the present work, we introduce a different scaling function, χ(l), which is shown to be twice the difference in free energy per site between a reference isotherm and the given isotherm, at half coverage. With this function the scaling behavior and the value of the scaling exponent α are determined over the whole range of interparticles interaction energy and adsorptive energy, and for different temperatures, through Monte Carlo simulations. The results are similar to those obtained in previous studies, with a value of α which is half the one obtained before due to the different definition of the scaling function, but the present analysis provides a full understanding of the scaling behavior based on the physical significance of the scaling function and the scaling exponent.
Fil: Bulnes, Fernando Manuel. Universidad Nacional de San Luis. Facultad de Ciencias Fisico Matematicas y Naturales. Departamento de Fisica. Laboratorio de Ciencias de Superficies y Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina
Fil: Ramirez Pastor, Antonio Jose. Universidad Nacional de San Luis. Facultad de Ciencias Fisico Matematicas y Naturales. Departamento de Fisica. Laboratorio de Ciencias de Superficies y Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina
Fil: Zgrablich, Jorge Andres. Universidad Nacional de San Luis. Facultad de Ciencias Fisico Matematicas y Naturales. Departamento de Fisica. Laboratorio de Ciencias de Superficies y Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina
Materia
Adsorption
Lattice gas
Heterogeneity
Correlation
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:11336/147771
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Scaling behavior of adsorption on patchwise bivariate surfaces revisitedBulnes, Fernando ManuelRamirez Pastor, Antonio JoseZgrablich, Jorge AndresAdsorptionLattice gasHeterogeneityCorrelationhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The adsorption of gases on patchwise heterogeneous bivariate surfaces is studied. These surfaces are characterized by a collection of strong and weak adsorbing patches with a typical length scale l. Different forms and spatial arrangements of these patches determine different topographies characterized by an effective length, leff = σl, where σ takes values from 1 to 4 for the different topographies considered here. Previous studies showed that the mean square deviation between isotherms corresponding to different values of leff scaled as a power law with exponent α, without providing any physical interpretation of such behavior. In the present work, we introduce a different scaling function, χ(l), which is shown to be twice the difference in free energy per site between a reference isotherm and the given isotherm, at half coverage. With this function the scaling behavior and the value of the scaling exponent α are determined over the whole range of interparticles interaction energy and adsorptive energy, and for different temperatures, through Monte Carlo simulations. The results are similar to those obtained in previous studies, with a value of α which is half the one obtained before due to the different definition of the scaling function, but the present analysis provides a full understanding of the scaling behavior based on the physical significance of the scaling function and the scaling exponent.Fil: Bulnes, Fernando Manuel. Universidad Nacional de San Luis. Facultad de Ciencias Fisico Matematicas y Naturales. Departamento de Fisica. Laboratorio de Ciencias de Superficies y Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; ArgentinaFil: Ramirez Pastor, Antonio Jose. Universidad Nacional de San Luis. Facultad de Ciencias Fisico Matematicas y Naturales. Departamento de Fisica. Laboratorio de Ciencias de Superficies y Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; ArgentinaFil: Zgrablich, Jorge Andres. Universidad Nacional de San Luis. Facultad de Ciencias Fisico Matematicas y Naturales. Departamento de Fisica. Laboratorio de Ciencias de Superficies y Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; ArgentinaAmerican Chemical Society2007-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/147771Bulnes, Fernando Manuel; Ramirez Pastor, Antonio Jose; Zgrablich, Jorge Andres; Scaling behavior of adsorption on patchwise bivariate surfaces revisited; American Chemical Society; Langmuir; 23; 3; 1-2007; 1264-12690743-74631520-5827CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/la062491sinfo:eu-repo/semantics/altIdentifier/doi/10.1021/la062491sinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:44:19Zoai:ri.conicet.gov.ar:11336/147771instacron: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 09:44:19.37CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Scaling behavior of adsorption on patchwise bivariate surfaces revisited
title Scaling behavior of adsorption on patchwise bivariate surfaces revisited
spellingShingle Scaling behavior of adsorption on patchwise bivariate surfaces revisited
Bulnes, Fernando Manuel
Adsorption
Lattice gas
Heterogeneity
Correlation
title_short Scaling behavior of adsorption on patchwise bivariate surfaces revisited
title_full Scaling behavior of adsorption on patchwise bivariate surfaces revisited
title_fullStr Scaling behavior of adsorption on patchwise bivariate surfaces revisited
title_full_unstemmed Scaling behavior of adsorption on patchwise bivariate surfaces revisited
title_sort Scaling behavior of adsorption on patchwise bivariate surfaces revisited
dc.creator.none.fl_str_mv Bulnes, Fernando Manuel
Ramirez Pastor, Antonio Jose
Zgrablich, Jorge Andres
author Bulnes, Fernando Manuel
author_facet Bulnes, Fernando Manuel
Ramirez Pastor, Antonio Jose
Zgrablich, Jorge Andres
author_role author
author2 Ramirez Pastor, Antonio Jose
Zgrablich, Jorge Andres
author2_role author
author
dc.subject.none.fl_str_mv Adsorption
Lattice gas
Heterogeneity
Correlation
topic Adsorption
Lattice gas
Heterogeneity
Correlation
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The adsorption of gases on patchwise heterogeneous bivariate surfaces is studied. These surfaces are characterized by a collection of strong and weak adsorbing patches with a typical length scale l. Different forms and spatial arrangements of these patches determine different topographies characterized by an effective length, leff = σl, where σ takes values from 1 to 4 for the different topographies considered here. Previous studies showed that the mean square deviation between isotherms corresponding to different values of leff scaled as a power law with exponent α, without providing any physical interpretation of such behavior. In the present work, we introduce a different scaling function, χ(l), which is shown to be twice the difference in free energy per site between a reference isotherm and the given isotherm, at half coverage. With this function the scaling behavior and the value of the scaling exponent α are determined over the whole range of interparticles interaction energy and adsorptive energy, and for different temperatures, through Monte Carlo simulations. The results are similar to those obtained in previous studies, with a value of α which is half the one obtained before due to the different definition of the scaling function, but the present analysis provides a full understanding of the scaling behavior based on the physical significance of the scaling function and the scaling exponent.
Fil: Bulnes, Fernando Manuel. Universidad Nacional de San Luis. Facultad de Ciencias Fisico Matematicas y Naturales. Departamento de Fisica. Laboratorio de Ciencias de Superficies y Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina
Fil: Ramirez Pastor, Antonio Jose. Universidad Nacional de San Luis. Facultad de Ciencias Fisico Matematicas y Naturales. Departamento de Fisica. Laboratorio de Ciencias de Superficies y Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina
Fil: Zgrablich, Jorge Andres. Universidad Nacional de San Luis. Facultad de Ciencias Fisico Matematicas y Naturales. Departamento de Fisica. Laboratorio de Ciencias de Superficies y Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina
description The adsorption of gases on patchwise heterogeneous bivariate surfaces is studied. These surfaces are characterized by a collection of strong and weak adsorbing patches with a typical length scale l. Different forms and spatial arrangements of these patches determine different topographies characterized by an effective length, leff = σl, where σ takes values from 1 to 4 for the different topographies considered here. Previous studies showed that the mean square deviation between isotherms corresponding to different values of leff scaled as a power law with exponent α, without providing any physical interpretation of such behavior. In the present work, we introduce a different scaling function, χ(l), which is shown to be twice the difference in free energy per site between a reference isotherm and the given isotherm, at half coverage. With this function the scaling behavior and the value of the scaling exponent α are determined over the whole range of interparticles interaction energy and adsorptive energy, and for different temperatures, through Monte Carlo simulations. The results are similar to those obtained in previous studies, with a value of α which is half the one obtained before due to the different definition of the scaling function, but the present analysis provides a full understanding of the scaling behavior based on the physical significance of the scaling function and the scaling exponent.
publishDate 2007
dc.date.none.fl_str_mv 2007-01
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/11336/147771
Bulnes, Fernando Manuel; Ramirez Pastor, Antonio Jose; Zgrablich, Jorge Andres; Scaling behavior of adsorption on patchwise bivariate surfaces revisited; American Chemical Society; Langmuir; 23; 3; 1-2007; 1264-1269
0743-7463
1520-5827
CONICET Digital
CONICET
url http://hdl.handle.net/11336/147771
identifier_str_mv Bulnes, Fernando Manuel; Ramirez Pastor, Antonio Jose; Zgrablich, Jorge Andres; Scaling behavior of adsorption on patchwise bivariate surfaces revisited; American Chemical Society; Langmuir; 23; 3; 1-2007; 1264-1269
0743-7463
1520-5827
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/10.1021/la062491s
info:eu-repo/semantics/altIdentifier/doi/10.1021/la062491s
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
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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