Blue Tungsten Oxide (BTO, commonly referring to WO3-x) is a non-stoichiometric tungsten oxide with the following characteristics:

I. Color and Appearance

It appears as blue or dark blue powdered crystals, with the shade of blue correlated with the concentration of oxygen vacancies.

Yellow tungsten oxide (chemical formula: WO₃) is an important transition metal oxide with unique physical and chemical properties, and is widely used in various fields such as energy, environmental protection, and electronics. Here is a brief introduction to its main characteristics:

Brown tungsten oxide, typically referring to tungsten dioxide (WO₂), is an inorganic compound composed of tungsten and oxygen elements. It is an important transition metal oxide with unique physical and chemical properties. Here are some key characteristics of brown tungsten oxide:

In daily life and industrial production, the operation of mechanical equipment relies on the support of lubricating materials. Lubricating materials play a crucial role as they can reduce friction and wear between mechanical components, lower energy consumption, and extend the service life of equipment. In recent years, tungsten disulfide nanosheet (WS₂ nanosheet), as a new type of lubricating material, has gradually become a "star material" in the lubrication field, thanks to its unique structure and excellent properties.