In the existing technology, using waste tungsten oxide (WO3) as a raw material, only low value-added ammonium paratungstate (APT) can be obtained, and high value-added ammonium metatungstate (AMT) products cannot be obtained. Moreover, WO3 waste ammonia after leaching, APT is needed to crystallize, so a crystallization reactor is necessary, and the investment in crystallization reactor equipment is relatively large, resulting in higher production costs and poor economic benefits, and the recovery rate of WO3 waste is low. Therefore, it is…

As a new type of transition metal compound material, cesium doped tungsten oxide nano particles have excellent near-infrared absorption performance and visible light transmission performance, and are often used to prepare high-quality transparent heat insulation film. Its application range is wide. The heat insulation film is to achieve the effect of heat insulation and energy saving by means of heat insulation materials. Traditional thermal insulation materials include glass fiber, asbestos, rock wool, silicate, etc., while new thermal insulation materials include…

Compared with single component tungsten oxide powder, the optical performance of cesium doped tungsten oxide powder is more superior, that is, the absorption ability of infrared rays is stronger, and the transmittance of visible light is higher. It has wide application range in block of near infrared light and thermal insulation glass. How to prepare cesium doped tungsten oxide nano powder with reasonable cost and high product stability? (1) Dissolve the raw material tungsten salt and cesium salt in a…

The reason why semiconductor memory chooses nano tungsten oxide material to produce storage media is that it is a very important semiconductor material with good electrochemical performance, and its resistance value can undergo reversible transformation under the action of an electric field. Next, let’s take a look at the manufacturing method of a storage device based on a tungsten oxide storage element. Manufacturing method (1) The storage device includes a plug that extends upward from the top surface of the…

Tungsten oxide is a very classic low-dimensional transition metal oxide material, which is attracted by its special physical and chemical properties (such as electrochromism, photochromism, catalytic activity, superconductivity and large load capacity, etc.) A large number of materials, semiconductor devices, and physics and chemistry researchers are paying attention. However, there is no report on white tungsten oxide and its preparation method. The chemical formula of white tungsten oxide is the same as that of purple tungsten oxide, which is W18O49.…

In addition to the production of tungsten trioxide (WO3) ultrafine particles, they can be used to produce tungsten powder, tungsten carbide powder, yellow ceramics, electrode materials for energy storage batteries, anti-corrosion paints and coatings, and can also be used to make multidingal mulch films. Compared with ordinary agricultural film, the agricultural film containing tungsten oxide additives has higher comprehensive performance, which is mainly manifested in better heat insulation effect and better light transmission performance. In areas with strong sunlight, when…