Abstract

2 H-MoS2 nanoparticles with excellent structural characteristics has become one of the main research objects of lubricating additives. Herein, one crumpled MoS2 submicrosphere staggered by ultrafine nanosheet was successfully synthesized by clean and fast laser irradiation in liquids at ambient conditions. Such crumpled sphere exhibits good wettability on steel surface in water. As water additives, the crumpled MoS2 submicrosphere can significantly improve the lubrication performance. Notably, the crumpled MoS2 submicrosphere have remarkable anti-friction with 80% reduction of COF compared with the pure water. The enhanced lubrication performance benefits from the lamella structure, microbearing and protective tribofilm of crumpled submicrosphere.

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