| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1485334 | Journal of Non-Crystalline Solids | 2007 | 4 Pages |
Abstract
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 Stöber 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.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jian Xu, Carole C. Perry,