Abstract
In this study, the nanocomposites of MoS2 nanoparticles (NPs) grown on carbon nanotubes (MoS2@CNT), graphene (MoS2@Gr), and fullerene C60 (MoS2@C60) were synthesized, characterized, and evaluated for potential use as lubricant additives. By using the benefit of the synergistic effect between MoS2 and carbon nanomaterials (CNMs), these nanocomposites can be well dispersed in polyalkylene glycol (PAG) base oil and show superior stability compared with pure MoS2 NPs. Moreover, the dispersions of MoS2@CNT, MoS2@Gr, and MoS2@C60 added in PAG have noticeably improved friction reducing and antiwear (AW) behaviors at elevated temperature for comparison with that of PAG and PAG containing CNT, Gr, C60, and MoS2 NPs, respectively. The enhanced lubricating properties of these nanocomposites were also elucidated by exploring the tribofilm formed on the disc.
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This work was financially supported by the National Key Research and Development Program of China (2018YFB2000601) and National Natural Science Foundation of China (Nos. 51875553 and 51775536).
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Kuiliang GONG. He earned his master’s degree (2010) in materials science from Qingdao University in China. He is currently a Ph.D. candidate in Lanzhou Institute of Chemical Physics. His research focuses on nano-additives for lubricating oil.
Xiaobo WANG. He is a full professor in Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences (CAS). He received his Ph.D. degree in physical chemistry from LICP in 2004. His research interest includes lubricating oils and greases, nano-additives, and tribochemical and tribophysical. He has published more than 150 peer reviewed journals papers and authorized 19 patents.
Xinhu WU. He got his Ph.D. degree in 2018 at Lanzhou Institute of Chemical Physics, CAS. He is an assistant at State Key Lab of Solid Lubrication in Lanzhou Institute of Chemical Physics, CAS. His research interests are HT lubricating oil and additives.
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Gong, K., Lou, W., Zhao, G. et al. MoS2 nanoparticles grown on carbon nanomaterials for lubricating oil additives. Friction 9, 747–757 (2021). https://doi.org/10.1007/s40544-020-0369-0
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DOI: https://doi.org/10.1007/s40544-020-0369-0