Tungsten trioxide has a narrow band gap (2.6-2.7 eV). The band structure of tungsten trioxide can match well with that of titanium dioxide. By compounding it with titanium dioxide, a composite with core shell structure can be obtained, which has better photoelectric or photocatalytic properties than that of a single component (titanium dioxide or tungsten trioxide).

With the boom of new energy vehicles, more and more researchers are devoting themselves to the research of new energy batteries with high performance. At present, lithium-ion batteries have become the most basic battery materials because of their high energy density, long service life and no pollution to the environment. However, cathode materials are becoming the main bottleneck in the industrialization of lithium-ion batteries.

Tungsten copper alloys are widely used in resistance welding, electrical contact materials and EDM plasma electrode materials due to their high strength, high hardness, arc erosion resistance and fusion resistance. It can be used in the lead frame of large scale integrated circuits, heat sink substrates of solid-state microwave tubes and the throat lining of rocket nozzle with short-term high temperature resistance in aerospace technology.

Tungsten carbide is a typical transition metal carbide, which belongs to hexagonal system. Tungsten carbide has good conductivity, and nano-sized tungsten carbide has good potential to replace noble metals as catalysts for hydrogen evolution. Therefore, it has attracted wide attention in the field of catalytic hydrogen evolution.