Tungsten oxide nanopowder, which may be applied in the field of thermal insulating glass on building windows and vehicles, can be prepared by chemical precipitation method with the characteristics of fine grain size, high purity and good photochromic performance. In other words, nano grain size tungsten oxide has strong absorption capacity for electromagnetic waves (ultraviolet rays and infrared rays), and thus it can also be used as an excellent invisible material.
Tungsten oxide also has the advantages of large specific surface, significant surface effects and special catalytic properties. As a transition metal compound, nano tungsten oxide is a type of n-type semiconductor with wide bandgap, while it is a promising sensitive material.
Nano tungsten oxide has many other applications, such as high-grade pigment, oil paint and watercolor; fire-retardant fabric; gas sensing material; primary or auxiliary catalysts for petrochemical; a commonly used catalyst in hydrogenation, dehydrogenation, oxidation, hydrocarbon isomerization and alkylation.
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