http://www.cnr.it/ontology/cnr/individuo/prodotto/ID282812

Transition from core-shell to Janus chemical configuration for bimetallic nanoparticles (Articolo in rivista)

Type

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Transition from core-shell to Janus chemical configuration for bimetallic nanoparticles (Articolo in rivista) (literal)

Anno

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Alternative label

Langlois, Cyril; Li, Z. L.; Yuan, Jun; Alloyeau, Damien; Nelayah, Jaysen; Bochicchio, Davide; Ferrando, Riccardo; Ricolleau, Christian (2012)
Transition from core-shell to Janus chemical configuration for bimetallic nanoparticles
in Nanoscale (Print); ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE,, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND (Regno Unito)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Langlois, Cyril; Li, Z. L.; Yuan, Jun; Alloyeau, Damien; Nelayah, Jaysen; Bochicchio, Davide; Ferrando, Riccardo; Ricolleau, Christian (literal)

Pagina inizio

Pagina fine

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http://pubs.rsc.org/en/content/articlelanding/2012/nr/c2nr11954d#!divAbstract (literal)

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Rivista

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Note

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Univ Paris 07, CNRS UMR 7162, Lab Mat & Phenomenes Quant, F-75205 Paris 13, France; Univ Birmingham, Sch Phys & Astron, Nanoscale Phys Res Lab, Birmingham B15 2TT, W Midlands, England; Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England; Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy; IMEM CNR, I-16146 Genoa, Italy (literal)

Titolo

Transition from core-shell to Janus chemical configuration for bimetallic nanoparticles (literal)

Abstract

In order to determine the possibilities to control the chemical configuration of bimetallic nanoparticles, we have considered CuAg nanoparticles synthesized by a physical route as a model in this study. The synthesis was made by pulsed laser deposition under ultra-high vacuum conditions, via a sequential deposition procedure. We show that the temperature of the substrate and the absolute quantity of Ag in a particle are the main parameters that drive the chemical configuration. To explain the transition from a core-shell configuration to a Janus configuration as a function of Ag quantity, we have conducted density-functional theory calculations and atomistic molecular dynamics simulations to investigate the stability of this system. The results are presented together with the experimental observations. (literal)

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