Trimetallic nanostructures: The case of AgPd-Pt multiply twinned nanoparticles

Autores
Khanal, Subarna; Bhattarai, Nabraj; Velázquez-Salazar, J. Jesús; Bahena, Daniel; Soldano, Germán; Ponce, Arturo; Mariscal, Marcelo; Mejía-Rosales, Sergio; José Yacamán, Miguel
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report the synthesis, structural characterization, and atomistic simulations of AgPd-Pt trimetallic (TM) nanoparticles. Two types of structure were synthesized using a relatively facile chemical method: multiply twinned core-shell, and hollow particles. The nanoparticles were small in size, with an average diameter of 11 nm and a narrow distribution, and their characterization by aberration corrected scanning transmission electron microscopy allowed us to probe the structure of the particles at an atomistic level. In some nanoparticles, the formation of a hollow structure was also observed, that facilitates the alloying of Ag and Pt in the shell region and the segregation of Ag atoms on the surface, affecting the catalytic activity and stability. We also investigated the growth mechanism of the nanoparticles using grand canonical Monte Carlo simulations, and we have found that Pt regions grow at overpotentials on the AgPd nanoalloys, forming 3D islands at the early stages of the deposition process. We found very good agreement between the simulated structures and those observed experimentally. © 2013 The Royal Society of Chemistry.
Fil: Khanal, Subarna. University of Texas; Estados Unidos
Fil: Bhattarai, Nabraj. University of Texas; Estados Unidos
Fil: Velázquez-Salazar, J. Jesús. University of Texas; Estados Unidos
Fil: Bahena, Daniel. University of Texas; Estados Unidos
Fil: Soldano, Germán. Universidad Nacional de Córdoba. Facultad de Cs.químicas. Departamento de Química Teórica y Computacional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Ponce, Arturo. University of Texas; Estados Unidos
Fil: Mariscal, Marcelo. Universidad Nacional de Córdoba. Facultad de Cs.químicas. Departamento de Química Teórica y Computacional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Mejía-Rosales, Sergio. Universidad Autónoma de Nuevo León; México
Fil: José Yacamán, Miguel. University of Texas; Estados Unidos
Materia
NANOPARTICLES
TRIMETALLIC Ag Pd Pt
MOLECULAR DYNAMICS
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:11336/133933
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Trimetallic nanostructures: The case of AgPd-Pt multiply twinned nanoparticlesKhanal, SubarnaBhattarai, NabrajVelázquez-Salazar, J. JesúsBahena, DanielSoldano, GermánPonce, ArturoMariscal, MarceloMejía-Rosales, SergioJosé Yacamán, MiguelNANOPARTICLESTRIMETALLIC Ag Pd PtMOLECULAR DYNAMICShttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1We report the synthesis, structural characterization, and atomistic simulations of AgPd-Pt trimetallic (TM) nanoparticles. Two types of structure were synthesized using a relatively facile chemical method: multiply twinned core-shell, and hollow particles. The nanoparticles were small in size, with an average diameter of 11 nm and a narrow distribution, and their characterization by aberration corrected scanning transmission electron microscopy allowed us to probe the structure of the particles at an atomistic level. In some nanoparticles, the formation of a hollow structure was also observed, that facilitates the alloying of Ag and Pt in the shell region and the segregation of Ag atoms on the surface, affecting the catalytic activity and stability. We also investigated the growth mechanism of the nanoparticles using grand canonical Monte Carlo simulations, and we have found that Pt regions grow at overpotentials on the AgPd nanoalloys, forming 3D islands at the early stages of the deposition process. We found very good agreement between the simulated structures and those observed experimentally. © 2013 The Royal Society of Chemistry.Fil: Khanal, Subarna. University of Texas; Estados UnidosFil: Bhattarai, Nabraj. University of Texas; Estados UnidosFil: Velázquez-Salazar, J. Jesús. University of Texas; Estados UnidosFil: Bahena, Daniel. University of Texas; Estados UnidosFil: Soldano, Germán. Universidad Nacional de Córdoba. Facultad de Cs.químicas. Departamento de Química Teórica y Computacional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Ponce, Arturo. University of Texas; Estados UnidosFil: Mariscal, Marcelo. Universidad Nacional de Córdoba. Facultad de Cs.químicas. Departamento de Química Teórica y Computacional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Mejía-Rosales, Sergio. Universidad Autónoma de Nuevo León; MéxicoFil: José Yacamán, Miguel. University of Texas; Estados UnidosRoyal Society of Chemistry2013-10info: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/11336/133933Khanal, Subarna; Bhattarai, Nabraj; Velázquez-Salazar, J. Jesús; Bahena, Daniel; Soldano, Germán; et al.; Trimetallic nanostructures: The case of AgPd-Pt multiply twinned nanoparticles; Royal Society of Chemistry; Nanoscale; 5; 24; 10-2013; 12456-124632040-33642040-3372CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1039/c3nr03831ainfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2013/NR/c3nr03831a#!divAbstractinfo:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3918169/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:32:52Zoai:ri.conicet.gov.ar:11336/133933instacron: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 09:32:52.978CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Trimetallic nanostructures: The case of AgPd-Pt multiply twinned nanoparticles
title Trimetallic nanostructures: The case of AgPd-Pt multiply twinned nanoparticles
spellingShingle Trimetallic nanostructures: The case of AgPd-Pt multiply twinned nanoparticles
Khanal, Subarna
NANOPARTICLES
TRIMETALLIC Ag Pd Pt
MOLECULAR DYNAMICS
title_short Trimetallic nanostructures: The case of AgPd-Pt multiply twinned nanoparticles
title_full Trimetallic nanostructures: The case of AgPd-Pt multiply twinned nanoparticles
title_fullStr Trimetallic nanostructures: The case of AgPd-Pt multiply twinned nanoparticles
title_full_unstemmed Trimetallic nanostructures: The case of AgPd-Pt multiply twinned nanoparticles
title_sort Trimetallic nanostructures: The case of AgPd-Pt multiply twinned nanoparticles
dc.creator.none.fl_str_mv Khanal, Subarna
Bhattarai, Nabraj
Velázquez-Salazar, J. Jesús
Bahena, Daniel
Soldano, Germán
Ponce, Arturo
Mariscal, Marcelo
Mejía-Rosales, Sergio
José Yacamán, Miguel
author Khanal, Subarna
author_facet Khanal, Subarna
Bhattarai, Nabraj
Velázquez-Salazar, J. Jesús
Bahena, Daniel
Soldano, Germán
Ponce, Arturo
Mariscal, Marcelo
Mejía-Rosales, Sergio
José Yacamán, Miguel
author_role author
author2 Bhattarai, Nabraj
Velázquez-Salazar, J. Jesús
Bahena, Daniel
Soldano, Germán
Ponce, Arturo
Mariscal, Marcelo
Mejía-Rosales, Sergio
José Yacamán, Miguel
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv NANOPARTICLES
TRIMETALLIC Ag Pd Pt
MOLECULAR DYNAMICS
topic NANOPARTICLES
TRIMETALLIC Ag Pd Pt
MOLECULAR DYNAMICS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We report the synthesis, structural characterization, and atomistic simulations of AgPd-Pt trimetallic (TM) nanoparticles. Two types of structure were synthesized using a relatively facile chemical method: multiply twinned core-shell, and hollow particles. The nanoparticles were small in size, with an average diameter of 11 nm and a narrow distribution, and their characterization by aberration corrected scanning transmission electron microscopy allowed us to probe the structure of the particles at an atomistic level. In some nanoparticles, the formation of a hollow structure was also observed, that facilitates the alloying of Ag and Pt in the shell region and the segregation of Ag atoms on the surface, affecting the catalytic activity and stability. We also investigated the growth mechanism of the nanoparticles using grand canonical Monte Carlo simulations, and we have found that Pt regions grow at overpotentials on the AgPd nanoalloys, forming 3D islands at the early stages of the deposition process. We found very good agreement between the simulated structures and those observed experimentally. © 2013 The Royal Society of Chemistry.
Fil: Khanal, Subarna. University of Texas; Estados Unidos
Fil: Bhattarai, Nabraj. University of Texas; Estados Unidos
Fil: Velázquez-Salazar, J. Jesús. University of Texas; Estados Unidos
Fil: Bahena, Daniel. University of Texas; Estados Unidos
Fil: Soldano, Germán. Universidad Nacional de Córdoba. Facultad de Cs.químicas. Departamento de Química Teórica y Computacional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Ponce, Arturo. University of Texas; Estados Unidos
Fil: Mariscal, Marcelo. Universidad Nacional de Córdoba. Facultad de Cs.químicas. Departamento de Química Teórica y Computacional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Mejía-Rosales, Sergio. Universidad Autónoma de Nuevo León; México
Fil: José Yacamán, Miguel. University of Texas; Estados Unidos
description We report the synthesis, structural characterization, and atomistic simulations of AgPd-Pt trimetallic (TM) nanoparticles. Two types of structure were synthesized using a relatively facile chemical method: multiply twinned core-shell, and hollow particles. The nanoparticles were small in size, with an average diameter of 11 nm and a narrow distribution, and their characterization by aberration corrected scanning transmission electron microscopy allowed us to probe the structure of the particles at an atomistic level. In some nanoparticles, the formation of a hollow structure was also observed, that facilitates the alloying of Ag and Pt in the shell region and the segregation of Ag atoms on the surface, affecting the catalytic activity and stability. We also investigated the growth mechanism of the nanoparticles using grand canonical Monte Carlo simulations, and we have found that Pt regions grow at overpotentials on the AgPd nanoalloys, forming 3D islands at the early stages of the deposition process. We found very good agreement between the simulated structures and those observed experimentally. © 2013 The Royal Society of Chemistry.
publishDate 2013
dc.date.none.fl_str_mv 2013-10
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/11336/133933
Khanal, Subarna; Bhattarai, Nabraj; Velázquez-Salazar, J. Jesús; Bahena, Daniel; Soldano, Germán; et al.; Trimetallic nanostructures: The case of AgPd-Pt multiply twinned nanoparticles; Royal Society of Chemistry; Nanoscale; 5; 24; 10-2013; 12456-12463
2040-3364
2040-3372
CONICET Digital
CONICET
url http://hdl.handle.net/11336/133933
identifier_str_mv Khanal, Subarna; Bhattarai, Nabraj; Velázquez-Salazar, J. Jesús; Bahena, Daniel; Soldano, Germán; et al.; Trimetallic nanostructures: The case of AgPd-Pt multiply twinned nanoparticles; Royal Society of Chemistry; Nanoscale; 5; 24; 10-2013; 12456-12463
2040-3364
2040-3372
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1039/c3nr03831a
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2013/NR/c3nr03831a#!divAbstract
info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3918169/
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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score 13.070432

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