氧化硅基溶胶-凝胶玻璃中SnO_2纳米晶的制备与表征  

Preparation and Characterization of SnO_2 Nanocrystals in Silica-based Glasses Prepared by Sol-Gel Method

作　　者：沈亮标[1] 徐清波[1] 徐键[1] 董建峰[1] Martucci A 

机构地区：[1]宁波大学,浙江宁波315211 [2]Universita'di Padova

出　　处：《稀有金属材料与工程》2010年第S2期299-301,共3页Rare Metal Materials and Engineering

基　　金：国家科技部项目(2006DFA52910);宁波市科技局项目(2007A610002;2008B10042);宁波大学王宽诚幸福基金

摘　　要：采用溶胶-凝胶法,以正硅酸乙酯、五水四氯化锡为先驱体,制备含不同浓度SnO2的SiO2基玻璃,在不同温度下对所得样品进行热处理。用X射线衍射(XRD)仪、傅里叶变换红外光谱(FT-IR)和透射电子显微镜(TEM)等测试手段对样品的物相、结构进行分析。结果表明:随着温度的升高,SnO2纳米颗粒逐渐长大,当温度为1050℃时,SnO2纳米颗粒的直径约为23nm。A series of nano-sized SnO2 doped silica glasses were prepared by a sol-gel method at different temperatures using TEOS and SnCl4·5H2O as precursors. X-ray diffraction(XRD), Infrared spectroscopy and transmission electron microscope(TEM) were used to characterize the structure and phase of these samples. The results show that SnO2 nanoparticles become larger with the increasing temperature and the diameter of SnO2 nanoparticles is about 23 nm when the temperature is 1050 ℃.

关 键 词：溶胶-凝胶 SIO2玻璃 SNO2纳米晶 

分 类 号：TB383.1[一般工业技术—材料科学与工程]