Tungsten trioxide powder may be applied for producing thermal insulating glass. And this type of glass can be seen in many places such as offices, home, exhibition hall, and so on.
WO3 may be prepared by template method. For example, the Na2WO4 solution is inlet with nitrogen, stirred, and added with HCl, and then the washed precipitate is dissolved with oxalic acid solution to obtain tungsten trioxide sol. The AAO template is immersed in it for a period of time, removed and flushed, calcined and cooled to obtain highly ordered nano-tube tungsten trioxide powder.
What is template method?
The template method usually uses a type of porous material with a nanometer-scale pore size as a template, and combines with electrochemical precipitation method, precipitation method, sol-gel method, and vapor deposition method to precipitate substance atom or ion on the pore wall of the template to form a desired nanostructure, then removed the template to obtain nanomaterials with the template's regular morphology and size.
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