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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…

Tungsten oxide powder may not only be applied for preparing thermal insulation film, which mainly exhibits its photochromic properties, but also be used for producing electrochromic devices, mainly exhibiting their electrochromic properties. The electrochromic device is essentially a transparent rechargeable thin film battery, that is, a rocking battery, whose working principle has a high similarity to the working principle of lithium battery. The coloring and fading process of the electrochromic device corresponds to the charging and discharging process of the…

Tungsten oxide powder, which is an inorganic electrochromic material, may be applied for preparing thermal insulation paper. In recent years, that the nanotechnology improves the discoloration performance through structural adjustment has become increasingly mature. And this technology has led to the study of tungsten oxide being redirected to the crystalline structure that has more compact and stable structure while its discoloration performance relatively poor. This makes it possible to prepare crystalline tungsten oxide with high rate of discoloration while ensuring…

Tungsten oxide powder may be applied for producing thermal insulation masterbatch, which will have excellent weather resistance, high temperature resistance, high transparency, high heat insulation and environmental protection. Tungsten oxide is also an inorganic electrochromic material. At present, the market application of electrochromic materials is limited to small-sized products such as automatic anti-glare automobile rearview mirrors and aircraft portholes. In order to realize the wide-area use of electrochromic materials in the field of building curtain walls, it is necessary to…

Tungsten oxide powder may be applied for producing nano-ceramic color master with bright color, high temperature resistance, good light resistance, excellent weather resistance, and high transparency when it is applied in products. Tungsten oxide is also an electrochromic material with excellent properties. At present, the market application of electrochromic materials is limited to small-sized products such as automatic anti-glare automotive rearview mirrors, and aircraft portholes, etc. Research on electrochromic materials was mostly concentrated on electronic display devices from the mid-1970s…

Nano tungsten oxide, which may be applied for preparing ceramic microsphere, is an excellent electrochromic material with good stability, mainly showing in the following two features: 1. It has better structural stability during color reversible change process, which requires electrochromic materials to be less prone to irreversible structural damage during ion insertion and extraction, thus showing good reversibility of redox and color change, and long cycle life. 2. With high chemical stability, good weather resistance and corrosion resistance, it can…

Nano tungsten oxide may be used in heat insulating window glass, which is mainly to shield the ultraviolet (UV) and infrared rays, thereby reducing the temperature inside the car and improving the comfort of human body. Tungsten oxide can also be used on electrochromic devices with excellent electrochromic properties. And therefore, such electrochromic devices will have shorter color change response time, i.e., higher color conversion rate. This requires that the entire color change reaction have higher reaction rate under the…