Synthesis of CeO2@SiO2 core-shell nanoparticles by water-in-oil microemulsion.: Preparation of functional thin film

JOURNAL OF COLLOID AND INTERFACE SCIENCE

卷:299

Article

Grasset, F. ; Marchand, R. ; Marie, A. -M. ; Fauchadour, D. ; Fajardie, F.

关键词: nanocolloids;    microemulsion;    DLS;    CeO2;    silica;    core-shell;    nanoparticles;   

DOI  :  10.1016/j.jcis.2006.02.028

来源: Elsevier

【 摘 要 】

Synthesis of nanoparticles under restricted environment offered by water-in-oil (W/O) microemulsions provides excellent control over particle size and shape, and inter-particle spacing. Such an environment has been involved to synthesize silica nanoparticles with a CeO2 core, so-called CeO2@SiO2. Aqueous fluids made up of ceria nanoparticles with a size close to 5 nm have been used as the water phase component. The starting CeO2 sols and obtained CeO2@SiO2 nanoparticles have been characterized by dynamic light scattering (DLS), X-ray diffraction, scanning and transmission electron microscopy, and specific surface area measurements. The microemulsion process has been characterized by DLS. Preliminary results on CeO2@SiO2 thin films are presented. (c) 2006 Elsevier Inc. All rights reserved.

【 授权许可】

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