Synthesis and Characterization of Sn doped SiO_2 by Reverse Micelle and Sol-Gel Process

摘要

Sn doped SiO_2 nanoparticles have been synthesized using a reverse micelle technique combined with metal alkoxide hydrolysis and condensation. The size of the particles and the thickness of the coating can be controlled by manipulating the relative rates of the hydrolysis and condensation reactions of tetraethyl orthosilicate(TEOS) within the micro-emulsion. The properties of the Sn doped SiO_2 nanoparticles were studied as a function of various processing parameters such as R and H value. The average size of synthesized Sn doped SiO_2 nanoparticles was about in the size range of 20-40 nm and core particle(Sn) 1-5 nm. The Sn doped SiO_2 nanoparticles were characterized by X-ray diffraction (XRD) and Transmission electron microscopy (TEM).