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A novel approach to Au@SiO2 core-shell spheres

机译:Au @ SiO2核壳球的一种新方法

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摘要

A novel synthesis method was described to prepare Au@SiO2 core-shell spheres, using a commercial gold colloid and tetraethyl orthosilicate as the precursors. The synthesis concept was based on surface modification of the gold nanoparticles with a binary system of surfactants, or using both of 2-Mercapto-ethanol and (3-Aminopropyl)-trimethoxysilane together, and the Stober processing. The shape and size, and silica coatings of the resultant particles were investigated by transmitting electron microscopy (TEM). The Au@silica core-shell spheres, each containing a single gold nanoparticle or an aggregate of several gold nanoparticles at the center, could be prepared. (c) 2007 Published by Elsevier B.V.
机译:描述了一种新的合成方法,以商业金胶体和原硅酸四乙酯为前体制备Au @ SiO2核壳球。合成概念是基于用表面活性剂的二元体系对金纳米颗粒进行表面修饰,或将2-巯基乙醇和(3-氨基丙基)-三甲氧基硅烷一起使用,以及Stober处理。通过透射电子显微镜(TEM)研究所得颗粒的形状和大小以及二氧化硅涂层。可以制备各自在中心包含单个金纳米颗粒或几个金纳米颗粒的聚集体的Au @二氧化硅核-壳球。 (c)2007年由Elsevier B.V.

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