Preparation method of inorganic fullerene structured molybdenium disulfide

Abstract

A process for preparing the MoS2 particles with inorganic fullerene structure includes such steps as dissolving the ammonium tetrathiomolybdate in water, spray drying to obtain superfine MoS3 particles, and heating the MoS3 in the mixture gas of H2 and Ar gas to reduce MoS3 into MoS2 with inorganic fullerene structure.

Description

Technical field [0001] The invention relates to a preparation method in the technical field of materials, in particular to a preparation method using an inorganic fullerene structure molybdenum disulfide. Background technique [0002] As we all know, solid lubricants with good tribological properties such as graphite and transition metal sulfide MX 2 (M=W or Mo, X=S or Se) is of great scientific importance in environments where liquid lubricants such as space technology, ultra-high vacuum or automobile transmissions cannot be used. These materials have very low shear stress due to their layered structure and small interlayer force (van der Waals force). Although these materials have excellent anti-wear properties and a long life under vacuum, the unsaturated dangling bonds at the edges of their crystals are chemically active, and they tend to adhere to the metal surface and be oxidized during the friction process, making them damp The tribological performance under conditions or ...

AI Technical Summary

Problems solved by technology

[0004] However, so far, the methods for preparing inorganic fullerene-like sulfides are very limited, which greatly limits their wide application in tribology and other fields.

For MoS 2 , so far, the most effective method is to use the method of fluidized bed with HS 2 Reduction of corresponding oxide particles to prepare inorganic fullerene-like MoS 2 Nanoparticles, but yields are still relatively limited