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Tungsten oxide nanopowder has photochromic property so that it may be applied for producing thermal insulation masterbatch. Tungsten oxide also has photocatalytic property, and therefore it can be used for the treatment of organic contaminated water. However, the photocatalytic activity of tungsten oxide is not so desired, and thus it is required to enhance its photocatalytic activity by means of semiconductor recombination. For example, the WO3/Bi2WO6 composite photocatalyst was analyzed to find that the composite photocatalyst exhibited higher photocatalytic activity…

Tungsten oxide nanopowder may not only be applied for the preparation of nano-ceramic color master, but also be used as a type of nano-material for batteries as nano grain size tungsten oxide has strong quantum size effect. Tungsten oxide may be applied in high-capacity, fast-charging electrochromic lithium-ion batteries. Its battery capacity is more than 6 times higher than that of similar batteries, and its charging speed is more than 8 times higher than that of similar batteries. In addition, nano…

Tungsten oxide powder, which may be applied in the production of ceramic microsphere, is a photocatalyst. However, its photocatalytic activity is not very high, so it is necessary to increase its photocatalytic activity by means of semiconductor recombination or element doping. The semiconductor composite means that a tungsten oxide composite photocatalyst can be obtained. There are many photocarrier separation processes for composite photocatalysts, but the main one is the migration of photogenerated carriers between the two semiconductors. In this way,…

Tungsten oxide powder, which may be used for preparing heat insulating window glass in the field of buildings and vehicles, is not only a type of photochromic material (heat insulation material), but also a kind of semiconductor photocatalyst. Tungsten oxide has good shielding rate to UV rays and infrared rays with high visible light transmittance, which means it has high heat insulation rate and high transparency. However, the photocatalytic activity of tungsten trioxide needs to be improved. Therefore, it is…

Tungsten oxide powder not only has photochromic properties, but also has photocatalytic properties. Therefore, it can be used in the field of window heat insulation film and photocatalytic degradation of organic pollution. However, the photocatalytic performance of tungsten trioxide needs to be further improved to make it better applied in the field of catalysis. And the method for improving the photocatalytic performance of WO3 includes elemental doping and the like. For example, S, I-doped tungsten trioxide may be prepared by…

Tungsten oxide powder may be applied in the field of thermal insulating glass. And tungsten oxide may also be used in the field of electrochromic devices. As an electrochromic device, it is necessary to consider the response time of tungsten oxide. At the same time, the diffusion coefficient of hydrogen ions should also be considered. Some researchers have used cellulose membranes with pore size of 50nm and 100nm to filter suspension containing tungsten oxide nanocrystals respectively, and thereby nanocrystalline tungsten…

Tungsten oxide powder has photochromic property, and therefore it may be applied for producing heat insulation coating. Tungsten oxide also has electrochromic property, and thus it is necessary to study methods for improving its discoloration property. Introducing Nanostructure to Enhance Electrochromic Property of Tungsten Oxide The introduction of nanostructure is a method to effectively improve the discoloration performance of tungsten oxide. And it has been widely concerned in experiments. Most commonly, tungsten oxide used are nanocrystalline or crystalline structures with…

Tungsten oxide powder, which may be applied for producing thermal insulation coating, may be prepared by hydrothermal method. Preparation of Ti-doped Tungsten Oxide Film by Templateless Hydrothermal Method Similar to the case of Mo doping, the Ti doping of tungsten oxide is investigated. And it is found that the tungsten oxide film prepared by the templateless hydrothermal method consisted of a network structure with excessively large pore size and uneven distribution. These holes will cut off the ion transport channels,…

Tungsten oxide powder may be applied for the production of near-infrared shielding material. And tungsten oxide may be prepared by spray pyrolysis method. Preparation of Mo-doped Nanocrystalline Tungsten Oxide by Spray Pyrolysis Method Nanocrystalline tungsten oxide with different Mo doping content may be prepared by spray pyrolysis method. It is found that the grain size and surface roughness of the film increase with the increase of Mo doping content. After that, the particle size of crystal will gradually decrease and…

Tungsten oxide powder may be applied for the preparation of nano-ceramic dispersion solution. Tungsten oxide also has electrochromic properties, in which the rate of discoloration of the material may be effectively increased by doping element. For doping element in tungsten oxide, most of the metallic elements that have lower electronegativity or weaker oxidizing ability than tungsten (W) are usually used, such as titanium (Ti), molybdenum (Mo), and vanadium (V), etc. The doping of these elements will change the crystallinity, grain…