Structural surface and thermodynamics analysis of nanoparticles with defects
- Autores
- Gavilán Arriazu, Edgardo Maximiliano; Gimenez, Rodrigo Esteban; Pinto, Oscar Alejandro
- Año de publicación
- 2020
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In this work, we analyze the surface structure and thermodynamics regarding the decoration of nanoparticles with defects, using statistical calculations and Monte Carlo simulations in a complementary way. The main objective is to design and analyze a simple model as a general tool that can help the interpretation of results from more specific and complex models. In particular, we show how the presence of surface defects of the same nature as the nanoparticle induces different site distributions depending on different factors such as the density of defects, and the geometry and size of the considered nanoparticle. These distributions are analyzed for icosahedron nanoparticles of different sizes and densities of defects, and then are linked with Monte Carlo simulations to interpret the thermodynamic effects of the modified surfaces. Under low temperature or strong attractive interaction conditions, the details emerging from the defective surfaces were manifested as wide plateaus in the isotherm and peaks in the compressibility of the adlayer. Different situations were observed as the temperature increases, since the structural details gradually disappear from the thermodynamic measurements, until plateaus and compressibility peaks completely merge under high enough temperature conditions. Adsorption site distribution, adsorption isotherms, energy per site, compressibility of the adlayer, and other relevant properties are analyzed as a function of the number of defects and the chemical potential. In addition to the icosahedron, cuboctahedron and truncated octahedron geometries are also analyzed.
Fil: Gavilán Arriazu, Edgardo Maximiliano. Universidad Nacional de Santiago del Estero; Argentina. Universidad Nacional de Santiago del Estero. Instituto de Bionanotecnología del Noa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Bionanotecnología del Noa; Argentina
Fil: Gimenez, Rodrigo Esteban. Universidad Nacional de Santiago del Estero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Centro de Investigación en Biofísica Aplicada y Alimentos. - Universidad Nacional de Santiago del Estero. Centro de Investigación en Biofísica Aplicada y Alimentos; Argentina
Fil: Pinto, Oscar Alejandro. Universidad Nacional de Santiago del Estero; Argentina. Universidad Nacional de Santiago del Estero. Instituto de Bionanotecnología del Noa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Bionanotecnología del Noa; Argentina - Materia
-
NANOPARTICLES
DEFECTS
MONTE CARLO
STRUCTURAL ANALYSIS - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/147112
Ver los metadatos del registro completo
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Structural surface and thermodynamics analysis of nanoparticles with defectsGavilán Arriazu, Edgardo MaximilianoGimenez, Rodrigo EstebanPinto, Oscar AlejandroNANOPARTICLESDEFECTSMONTE CARLOSTRUCTURAL ANALYSIShttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In this work, we analyze the surface structure and thermodynamics regarding the decoration of nanoparticles with defects, using statistical calculations and Monte Carlo simulations in a complementary way. The main objective is to design and analyze a simple model as a general tool that can help the interpretation of results from more specific and complex models. In particular, we show how the presence of surface defects of the same nature as the nanoparticle induces different site distributions depending on different factors such as the density of defects, and the geometry and size of the considered nanoparticle. These distributions are analyzed for icosahedron nanoparticles of different sizes and densities of defects, and then are linked with Monte Carlo simulations to interpret the thermodynamic effects of the modified surfaces. Under low temperature or strong attractive interaction conditions, the details emerging from the defective surfaces were manifested as wide plateaus in the isotherm and peaks in the compressibility of the adlayer. Different situations were observed as the temperature increases, since the structural details gradually disappear from the thermodynamic measurements, until plateaus and compressibility peaks completely merge under high enough temperature conditions. Adsorption site distribution, adsorption isotherms, energy per site, compressibility of the adlayer, and other relevant properties are analyzed as a function of the number of defects and the chemical potential. In addition to the icosahedron, cuboctahedron and truncated octahedron geometries are also analyzed.Fil: Gavilán Arriazu, Edgardo Maximiliano. Universidad Nacional de Santiago del Estero; Argentina. Universidad Nacional de Santiago del Estero. Instituto de Bionanotecnología del Noa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Bionanotecnología del Noa; ArgentinaFil: Gimenez, Rodrigo Esteban. Universidad Nacional de Santiago del Estero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Centro de Investigación en Biofísica Aplicada y Alimentos. - Universidad Nacional de Santiago del Estero. Centro de Investigación en Biofísica Aplicada y Alimentos; ArgentinaFil: Pinto, Oscar Alejandro. Universidad Nacional de Santiago del Estero; Argentina. Universidad Nacional de Santiago del Estero. Instituto de Bionanotecnología del Noa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Bionanotecnología del Noa; ArgentinaRoyal Society of Chemistry2020-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/147112Gavilán Arriazu, Edgardo Maximiliano; Gimenez, Rodrigo Esteban; Pinto, Oscar Alejandro; Structural surface and thermodynamics analysis of nanoparticles with defects; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 22; 40; 10-2020; 23148-231571463-9076CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/Content/ArticleLanding/2020/CP/D0CP03348Kinfo:eu-repo/semantics/altIdentifier/doi/10.1039/D0CP03348Kinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:32:50Zoai:ri.conicet.gov.ar:11336/147112instacron: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 10:32:50.3CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Structural surface and thermodynamics analysis of nanoparticles with defects |
title |
Structural surface and thermodynamics analysis of nanoparticles with defects |
spellingShingle |
Structural surface and thermodynamics analysis of nanoparticles with defects Gavilán Arriazu, Edgardo Maximiliano NANOPARTICLES DEFECTS MONTE CARLO STRUCTURAL ANALYSIS |
title_short |
Structural surface and thermodynamics analysis of nanoparticles with defects |
title_full |
Structural surface and thermodynamics analysis of nanoparticles with defects |
title_fullStr |
Structural surface and thermodynamics analysis of nanoparticles with defects |
title_full_unstemmed |
Structural surface and thermodynamics analysis of nanoparticles with defects |
title_sort |
Structural surface and thermodynamics analysis of nanoparticles with defects |
dc.creator.none.fl_str_mv |
Gavilán Arriazu, Edgardo Maximiliano Gimenez, Rodrigo Esteban Pinto, Oscar Alejandro |
author |
Gavilán Arriazu, Edgardo Maximiliano |
author_facet |
Gavilán Arriazu, Edgardo Maximiliano Gimenez, Rodrigo Esteban Pinto, Oscar Alejandro |
author_role |
author |
author2 |
Gimenez, Rodrigo Esteban Pinto, Oscar Alejandro |
author2_role |
author author |
dc.subject.none.fl_str_mv |
NANOPARTICLES DEFECTS MONTE CARLO STRUCTURAL ANALYSIS |
topic |
NANOPARTICLES DEFECTS MONTE CARLO STRUCTURAL ANALYSIS |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
In this work, we analyze the surface structure and thermodynamics regarding the decoration of nanoparticles with defects, using statistical calculations and Monte Carlo simulations in a complementary way. The main objective is to design and analyze a simple model as a general tool that can help the interpretation of results from more specific and complex models. In particular, we show how the presence of surface defects of the same nature as the nanoparticle induces different site distributions depending on different factors such as the density of defects, and the geometry and size of the considered nanoparticle. These distributions are analyzed for icosahedron nanoparticles of different sizes and densities of defects, and then are linked with Monte Carlo simulations to interpret the thermodynamic effects of the modified surfaces. Under low temperature or strong attractive interaction conditions, the details emerging from the defective surfaces were manifested as wide plateaus in the isotherm and peaks in the compressibility of the adlayer. Different situations were observed as the temperature increases, since the structural details gradually disappear from the thermodynamic measurements, until plateaus and compressibility peaks completely merge under high enough temperature conditions. Adsorption site distribution, adsorption isotherms, energy per site, compressibility of the adlayer, and other relevant properties are analyzed as a function of the number of defects and the chemical potential. In addition to the icosahedron, cuboctahedron and truncated octahedron geometries are also analyzed. Fil: Gavilán Arriazu, Edgardo Maximiliano. Universidad Nacional de Santiago del Estero; Argentina. Universidad Nacional de Santiago del Estero. Instituto de Bionanotecnología del Noa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Bionanotecnología del Noa; Argentina Fil: Gimenez, Rodrigo Esteban. Universidad Nacional de Santiago del Estero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Centro de Investigación en Biofísica Aplicada y Alimentos. - Universidad Nacional de Santiago del Estero. Centro de Investigación en Biofísica Aplicada y Alimentos; Argentina Fil: Pinto, Oscar Alejandro. Universidad Nacional de Santiago del Estero; Argentina. Universidad Nacional de Santiago del Estero. Instituto de Bionanotecnología del Noa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Bionanotecnología del Noa; Argentina |
description |
In this work, we analyze the surface structure and thermodynamics regarding the decoration of nanoparticles with defects, using statistical calculations and Monte Carlo simulations in a complementary way. The main objective is to design and analyze a simple model as a general tool that can help the interpretation of results from more specific and complex models. In particular, we show how the presence of surface defects of the same nature as the nanoparticle induces different site distributions depending on different factors such as the density of defects, and the geometry and size of the considered nanoparticle. These distributions are analyzed for icosahedron nanoparticles of different sizes and densities of defects, and then are linked with Monte Carlo simulations to interpret the thermodynamic effects of the modified surfaces. Under low temperature or strong attractive interaction conditions, the details emerging from the defective surfaces were manifested as wide plateaus in the isotherm and peaks in the compressibility of the adlayer. Different situations were observed as the temperature increases, since the structural details gradually disappear from the thermodynamic measurements, until plateaus and compressibility peaks completely merge under high enough temperature conditions. Adsorption site distribution, adsorption isotherms, energy per site, compressibility of the adlayer, and other relevant properties are analyzed as a function of the number of defects and the chemical potential. In addition to the icosahedron, cuboctahedron and truncated octahedron geometries are also analyzed. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-10 |
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/11336/147112 Gavilán Arriazu, Edgardo Maximiliano; Gimenez, Rodrigo Esteban; Pinto, Oscar Alejandro; Structural surface and thermodynamics analysis of nanoparticles with defects; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 22; 40; 10-2020; 23148-23157 1463-9076 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/147112 |
identifier_str_mv |
Gavilán Arriazu, Edgardo Maximiliano; Gimenez, Rodrigo Esteban; Pinto, Oscar Alejandro; Structural surface and thermodynamics analysis of nanoparticles with defects; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 22; 40; 10-2020; 23148-23157 1463-9076 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/Content/ArticleLanding/2020/CP/D0CP03348K info:eu-repo/semantics/altIdentifier/doi/10.1039/D0CP03348K |
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 |
dc.publisher.none.fl_str_mv |
Royal Society of Chemistry |
publisher.none.fl_str_mv |
Royal Society of Chemistry |
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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1844614342645907456 |
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13.070432 |