High-purity tungsten and its silicide are mainly used in very large-scale integrated circuits as a resistance layer, a diffusion barrier, etc., and as gate materials and connecting materials in metal oxide semiconductor transistors, which are expensive on the market.

Tungsten trioxide is an important catalytic active material, WO₃ can decide catalyst and do the assistant catalyst.

Synthetic nano tungsten trioxide or thin film methods are usually gas phase method, solid phase method, liquid phase method. Sputtering method is a preparation of nano tungsten trioxide film gas phase preparation method.

Nano tungsten trioxide is an excellent N-type semiconductor gas sensor, compared with the traditional materials, nano-tungsten trioxide gas sensor, high sensitivity, faster response speed and faster recovery is the most studied in recent years gas sensitive raw materials.

Sol gel method is widely used abroad, a kind of nano material preparation method, its principle is the prepared precursor (such as inorganic salt or metal alkoxide) dissolved in small molecule solvent in solution by mixing made uniform, solute and solvent hydrolysis reaction, hydrolysis condensation the reaction of nano particles and the formation of integrated sol.

Nano tungsten trioxide is a typical N-type semiconductor gas sensing material, it has a large surface area, stable chemical properties, a wide band gap, a variety of toxic gases have good sensitivity, can effectively improve gas sensor sensitivity and response speed, is a good gas-sensitive film material.

Nano tungsten trioxide is a typical N-type semiconductor gas sensing material, which has a large specific surface area, stable chemical properties, a variety of toxic gases have good sensitivity, can effectively improve sensitivity and responsiveness of gas sensors effectively reduce the harmful effects of harmful gases on human health.

Tungsten trioxide (WO₃) is a kind of transition metal oxides, it is not only a kind of N type semiconductor material, is also a kind of "d0" oxide, this dual identity so it has many characteristics.

Ball mill is a fine equipment used in industry and can also be used for mixing.

Tungsten oxide is a kind of tungstic anhydride, which is a tungstate product. Tungsten oxide includes tungsten trioxide and tungsten dioxide. In actual industrial production, it is rare to have tungsten dioxide.