超声-化学沉淀法制备WO_3纳米颗粒研究  

Study on Preparation of Tungsten Trioxide Nanoparticles by Ultrasonic- Chemical Precipitation Method

作　　者：刘世凯[1] 杨海滨[1] 武存喜[1] 李享[1] 

机构地区：[1]河南理工大学材料科学与工程学院,河南焦作454003

出　　处：《中国钨业》2006年第1期23-27,共5页China Tungsten Industry

摘　　要：采用超声-化学沉淀法制备了WO3纳米颗粒,通过X射线粉末衍射谱(XRD)、X光能谱分析(EDX)、透射电子显微镜(TEM)和场发射扫描电子显微镜(FE-SEM)等测试手段对产物进行了表征。结果表明,所制备的淡黄色WO3纳米颗粒纯度高,平均粒径在40nm左右,呈类球形;讨论了超声条件、无水乙醇的使用、沉淀的分离洗涤与干燥以及煅烧条件等因素对制备WO3纳米颗粒的影响。The tungsten trioxide nanoparticles have been prepared by the ultrasonic-chemical precipitation method in this work. X-ray powder diffraction （XRD）, Energy dispersive X-ray detector （EDX）, transmission electron microscopy （TEM）, field emission scanning electron microscopy （FESEM） techniques have been used to characterize the production. The results shows that the light yellow tungsten trioxide nanoparticles, which have uniformly Spheroidal shapes on the whole, are in high purity with an average size about 40nm. Additionally, the factors such as the ultrasonic conditions, the use of absolute ethyl alcohol, the abstersion and desiccation of the separated precipitation and the conditions of calcinations, which have influence on the preparation of the tungsten trioxide nanoparticles, have been discussed also.

关 键 词：WO3纳米颗粒 超声 化学沉淀 

分 类 号：TB383.1[一般工业技术—材料科学与工程]