Influence of different raw material of tungsten on the morphologies of nanosize WO_3

Nanosize WO3were synthesized by hydrothermal method using sodium tungstate and tungsten chloride as raw material and glycol and urea as assistant in strong acid system. The products were characterized by XRD,SEM and EDX,and the effect of hydrothermal condition on the morphologies of nanosize WO3were studied. The results indicate that the important influence of different raw materials on the morphologies of nanosize WO3under the same hydrothermal conditions. The hex-WO3was obtained with sodium tungstate as raw material and glycol as assistant reagent.