IN-SITU TRANSFORMATION INTO MoSe2/MoOx HETEROGENEOUS NANOSTRUCTURES WITH ENHANCED TRIBOLOGICAL PERFORMANCE AS LUBRICATION ADDITIVE

As lubricating materials, the tribological performance of laminar transition metal dichalcogenides (TMDs), can be improved by compound oxide particles. In this study, MoSe2/MoOx heterogeneous nanostructures are easily obtained from a solvothermal reaction followed by an annealed process in O2/N2 atmosphere. The MoSe2/MoOx composite, as a lubricant additive, shows better performance than those of pristine base oil, which includes friction coefficient and antiwear capability. The enhanced performance of MoSe2/MoOx heterogeneous nanostructures can be attributed to the lubrication layer and tribochemical reaction films formed on the worn surface, which prevents the direct contact of the friction surface and improves tribological performance.