Generally, tungsten disulfide can be prepared from tungsten trioxide, using it as the raw material. Tungsten disulfide with different purity can be prepared by this method according to different preparation conditions.

Tungsten oxide has outstanding electrochromic, photochromic, thermochromic and catalytic properties. It is confirmed that reducing the particle size of traditional electrode materials to zero dimension will greatly enhance the material and charge transport process, and it is expected to expand the application of quantum dots in the field of ultra-fast response electrochemical devices. Zero-dimensional tungsten oxide quantum dots can greatly improve the electroluminescent properties of tungsten oxide. The preparation process of tungsten oxide quantum dots includes the following steps:

At present, tungsten oxide (WO₃) thin films with resistance sensitive layer are often used to monitor low concentration of NO₂ gas. The preparation methods of WO₃ thin films are to coat nano-tungsten oxide on planar interdigital electrodes or curved ceramic tube substrates by simple manual brushing or deposition. However, the specific surface area of tungsten oxide films prepared by this process is small, which restricts the improvement of the sensitivity of detecting nitrogen dioxide gas.

Ethanol gas sensor can be used to detect ethanol content in drunk driving inspection or industrial production, avoiding traffic accidents or production safety accidents, and has important practical value. In recent years, tungsten oxide with ethanol sensing properties has attracted the attention of researchers and researchers.