Synergistic Lubrication Achieved by Proton-Ionic Liquids and MoS<sub>2</sub> as High-Performance Water-Based Lubricant Additives
Two-dimensional materials and ionic liquids are widely used as lubricating materials due to their excellent tribological properties. This study designed three water-based proton-ionic liquids (PILs) and synthesized molybdenum disulfide (MoS<sub>2</sub>) nanosheets for their combination as water-based lubricant additives. The composite lubrication system exhibits excellent tribological properties, with a friction coefficient as low as 0.024, reducing friction by 90.77% compared to water-glycol. Mechanism studies have shown that the excellent lubrication performance comes from the adsorption of ionic liquids at sliding interfaces, the interlayer slip of MoS<sub>2</sub>, and the generation of tribofilms at wear scars. This work provides theoretical support and technical guidance for the design and preparation of new water-based lubricating additives.
Authors
- Feng Zhou (ORCID: https://orcid.org/0000-0001-7136-9233)
- Hongxiang Yu (ORCID: https://orcid.org/0000-0003-0954-0348)
- Xiangyu Zuo
- Xia Zhang (ORCID: https://orcid.org/0000-0001-9058-1221)
Institutions
- Chinese Academy of Sciences (CN)
- Lanzhou Institute of Chemical Physics (CN)
Publication Details
- Journal
- Langmuir
- Published
- 2025-02-20
- DOI
- https://doi.org/10.1021/acs.langmuir.4c05246
- Citations
- 18
- Primary Topic
- Lubricants and Their Additives
- Type
- article
- Field-Weighted Citation Impact
- 12.84
Funders
- Natural Science Foundation of Gansu Province
- Natural Science Foundation of Shandong Province
- Taishan Scholar Project of Shandong Province
- Science and Technology Program of Gansu Province