The active atoms of tungsten oxide are located on the surface of the crystal, which greatly enlarges the contact area between the crystal surface and the gas, and can effectively improve the gas sensing performance. Tungsten oxide with one-dimensional nanowire structure attracts many researchers because of its huge specific surface area.

Thermal spraying of cemented carbide powder is a technology of hardening and strengthening mechanical surface. This technology may effectively prolong the service life of machinery. Tungsten carbide is the most common raw material for thermal spray welding (coating). Nowadays, there are many new technologies on the market, such as high-energy plasma spraying, vacuum plasma spraying, supersonic flame spraying, explosive spraying and so on. Whatever process is adopted, the raw materials for spraying are not made of high-quality tungsten carbide powder.

In recent years, graphene, conductive polymers and transition metal oxide composites have attracted more and more attention of researchers, and have become one of the foreword fields of electrochemical research.

Nanometer tungsten disulfide electrode material, with high specific capacity, large specific surface area and good thermal stability, is considered as an ideal energy storage electrode material, widely used in the field of electrical materials.