焦绿石型WO_3超细粉体的水热合成与表征  

Hydrothermal Synthesis and Characterization of Superfine Powder of Phrochlore-type Tungsten Trioxide

作　　者：徐英明[1] 程晓丽[1] 高山[1] 霍丽华[1] 赵经贵[1] 

机构地区：[1]黑龙江大学化学化工学院,黑龙江哈尔滨150080

出　　处：《哈尔滨理工大学学报》2002年第6期70-71,74,共3页Journal of Harbin University of Science and Technology

基　　金：国家自然科学基金资助(20101003)

摘　　要：在水热条件下,以钨酸钠为原料,通过调节反应的pH值、酸的量浓度、反应温度及反应时间,找到了制备较佳焦绿石型WO_3超细粉体的规律.采用TG,XRD,IR,EPMA等测试手段对样品进行了表征,产物为立方晶系的焦绿石型WO_3超微粉体,粒径大小约为24nm.Under hydrothermal conditions, the rule was found for the preparation of superfine powder of pyrochlore - type tungsten trioxide by changing the pH value of the system, concentration of the acid, reaction temperature and time. The products were characterized by XRD, TG, IR and EPMA. The results reveal that the compound is the superfine powder of cubic pyrochlore-type tungsten trioxide with the particle size 24nm.

关 键 词：焦绿石型 超细粉体 表征 WO3 水热合成 超微粒子 三氧化钨 

分 类 号：TF123.72[冶金工程—粉末冶金] O61[冶金工程—冶金物理化学]