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

被引：14

作者：

Chassagneux, Fernand ^{[1
]}

Bois, Laurence ^{[1
]}

Simon, Jean-Paul ^{[2
]}

Desroches, Cedric ^{[1
]}

Brioude, Arnaud ^{[1
]}

机构：

[1] Univ Lyon 1, Lab Multimat & Interfaces, CNRS, UMR 5615, F-69622 Villeurbanne, France

[2] Grenoble CNRS UJF UMR 5266, INP, SIMAP, F-38402 St Martin Dheres, France

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2011年 / 21卷 / 32期

关键词：

X-RAY-SCATTERING; MESOPOROUS SILICA; THIN-FILMS; METAL NANOSTRUCTURES; REPLACEMENT REACTION; AU NANOPARTICLES; IN-SITU; GROWTH; AG; ARRAYS;

D O I：

10.1039/c1jm11331c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：11947 / 11955

页数：9

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