
Tungsten oxide nanopowder for preparing ceramic microsphere has photochromic property. It is an excellent solar energy absorbing material. In other words, tungsten oxide has strong absorption capacity for electromagnetic waves (mainly ultraviolet rays and near-infrared rays). And therefore, it can also be used as invisible material. The photochromic property makes tungsten oxide can be widely applied in the field of heat insulation. Nano grain size tungsten oxide also has photocatalytic property. If it is combined with Pt/C, the composite is…