摘要
利用Ti(OC)4H_9)4高温气相裂解反应合成了TiO_2超细粒子粉末,确立了无定形、锐钛、金红石三种形式的TiO_2粒子合成工艺条件。对淀积物进行了XRD、BET、TEM和激光光散射分析,系统地研究了反应温度、反应物初始浓度和停留时间对产物形态、晶体组成的影响。
Ultrafine TiO_2 particles were synthesized by thermal decomposition of Ti(OC_4H_9)_4, the preparation conditions of amorphous TiO_2, anatase and rutile were given. Using XRD、BET、TEM、BI-90 particle sizer and other methods, the effects of reaction temperature, initial reactant concentration and residence time on the properties of deposition product were studied.
基金
国家自然科学基金
关键词
二氧化钛
化学气相淀积
超细粉
titanium dioxide
thermal decomposition deposition
synthesis
chemical vapor deposition
ultrafine particles
