Elaboration and characterization of bimetallic gold-silver nanoparticles supported on mesostructured silica films - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Journal of Materials Chemistry Année : 2011

Elaboration and characterization of bimetallic gold-silver nanoparticles supported on mesostructured silica films

Résumé

Silver-gold nanoparticles are grown inside mesostructured silica films obtained from block copolymers, using two successive steps: the first one involves silver nanoparticle growth. The second step consists of the replacement of the silver with gold. Using two commercial block copolymers, containing polyethylene oxide and polypropylene oxide blocks, mesostructured silica films are suitable "soft'' templates for elaborating either spherical gold nanoparticles or nanorods array. Then, a third step involving soft silver reduction allows the preparation of core-shell gold-silver nanostructures. Grazing incidence small-angle X-ray scattering (GISAXS) and Anomalous GISAXS (AGISAXS) analysis are performed using synchrotron radiation on a bimetallic nanoparticles-containing film.
Fichier non déposé

Dates et versions

hal-00633966 , version 1 (19-10-2011)

Identifiants

Citer

Fernand Chassagneux, Laurence Bois, Jean-Paul Simon, Cedric Desroches, Arnaud Brioude. Elaboration and characterization of bimetallic gold-silver nanoparticles supported on mesostructured silica films. Journal of Materials Chemistry, 2011, 21 (32), pp.11947-11955. ⟨10.1039/c1jm11331c⟩. ⟨hal-00633966⟩
117 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More