... , wherein molybdenum atoms are sandwiched between layers of sulfur atoms. Because of the weak van der Waals ... Nylatron), Teflon, and Vespel. Self-lubricating composite coatings for high-temperature applications have been developed consisting of molybdenum ... surface.Use in petrochemistrySynthetic MoS2 is employed as a catalyst for desulfurization in petroleum refineries; e.g., hydrodesulfurization.[10] ...