Tungsten disulfide (WS2) in bulk has been used for many years as a dry lubricant due to how it exhibits similar properties to Molybdenum Disulfide (MoS2), such as a low coefficient of friction, high chemical stability, and thermal stability. In 1992, it was discovered that the structure of?WS2?made it capable of forming nanotube structures. These nanotubes were the first examples of WS2?being used as a low-dimensional material.
