Fuel cell is an electrochemical device that directly converts chemical energy into electrical energy. One of its key materials is electrode catalyst. For a long time, precious metals such as platinum and ruthenium have been widely used because of their excellent catalytic performance. Alloy catalyst can reduce the Pt loading and improve the catalytic efficiency, but the stability of catalyst needs to be improved.

Spherical tungsten powder is mainly used in thermal spraying, filter materials, cathode and porous materials because of its good sphericity and fluidity and high compacting density. At present, the demand for high quality spherical tungsten powder is increasing day by day. In the field of thermal spraying, spherical tungsten powder is more uniform and compact because of its good fluidity and high compacting density.

Tungsten has the advantages of high melting point, high strength, high hardness and high wear resistance. In addition, it has low thermal expansion coefficient, good corrosion resistance and oxidation resistance, and good conductivity and thermal conductivity. Therefore, tungsten has been widely used in cutting-edge scientific fields, national defense industry and civil industry.

Spherical tungsten carbide powder has high hardness, high wear resistance, acid and alkali resistance, high chemical stability. It has wide potential application value in fuel cell anode, cathode catalyst material, gas sensor, petroleum catalyst and photocatalyst material.