Tungsten disulfide is an ideal material for bearing lubrication. It is suitable for the working environment of heavy load, and can form a dense protective film of tungsten trioxide on bearing surface under high temperature, so as to reduce the wear.

Tungsten disulfide has high application value in the lubrication of deep groove ball bearing with its excellent corrosion resistance. It provides maximum corrosion protection for this kind of part, which works under high temperature and heavy load. It is an efficient multifunctional material.

Tungsten disulfide will form a dense protective film of tungsten trioxide under high temperature, which plays a role of lubrication. Therefore, this kind of material is used in bearing lubrication to reduce the surface wear and improve the service life of bearing.

Tungsten disulfide is suitable for the working environment of rolling bearing with high temperature and heavy load. It has good lubricating performance as well as excellent high temperature and extreme pressure resistance. Therefore, it is an ideal material for rolling bearing lubrication.

Tungsten trioxide and its hydrated oxide are very important n-type semiconductor materials, with band gap between 2.4-2.8ev. They have excellent physical and chemical properties and unique electrocatalytic activity, and have very important applications in electrochromic, gas sensitive, electrocatalytic and photocatalysis fields.

Electrochromism refers to the reversible and lasting change of light transmittance and / or reflectivity associated with electrochemical redox reaction when the material is applied with appropriate voltage. The applications of electrochromic devices mainly include: intelligent windows for cars and buildings, controllable light reflection or light transmission display devices (for optical information and storage), controllable aircraft canopies, reusable price tags, spacecraft thermal control, etc.

Compared with the traditional tungsten oxide materials, tungsten oxide nanowires have larger specific surface area, which have a wide range of application prospects in gas sensor, electroluminescence, photoluminescence, conductivity electrode and photocatalysis. Especially in the application field of oxide semiconductor gas sensor, tungsten oxide nanowires not only have large specific surface area, but also have larger surface activity and stronger adsorption capacity, which accelerates the reaction with gas, thus greatly improving the sensitivity and further reducing the working temperature of the sensor.

Tungsten trioxide (WO₃) is an important n-type semiconductor oxide, which has a variety of crystal structures. Due to its unique physical and chemical properties, it has been widely studied, and has been applied in electrochromic, photochromic, sensing and catalytic fields. In order to further utilize the excellent properties of WO₃ and broaden its application field, the best technical way is to reduce its grain size, that is, nano tungsten oxide.

Rare earth trivalent ions have rich 4f energy level configuration, and their fluorescence characteristics are greatly affected by the crystal field environment and the symmetry of the lattice. At present, many scholars use the small size effect of semiconductor nano materials (ZnO, TiO₂) and lattice sensitization to improve the optical properties of rare earth trivalent ions, which are widely used in biological fluorescent probes, optical devices and new luminescent materials.

WS₂ and reduced graphene oxide (WS₂/rGO) nanocomposite is prepared by in situ reduction of graphene oxide. This kind of material has good catalytic activity for hydrogen evolution as well as high sodium storage capacity. It can be widely used in many fields such as supercapacitor, Na-ion battery and so on.