Anchoring Carbon-Based Quantum Dots on MoS 2 Nanosheets Achieves Fast Running-In and Stable Low-Friction Behavior under Liquid Conditions
Source abstract
Abstract
To address issues such as prolonged break-in periods, high initial friction, and severe wear in high-load liquid lubrication systems, this study successfully synthesized a composite lubricant additive (CDs@MoS 2 ) composed of zero-dimensional carbon-based quantum dots (CDs) and two-dimensional molybdenum disulfide (MoS 2 ) nanosheets via an ionic liquids (ILs)-assisted hydrothermal strategy. This composite exhibits rapid run-in and stable low-friction properties in liquid media. Compared to pure water and PAO10 base oil, its average coefficient of friction decreased significantly by 79% and 84%, respectively, while the run-in period was reduced to under 60 s. Surface analysis reveals spherical CDs acting as nano “ball bearings” effectively fill surface microgrooves and reduce shear stress. Layered MoS 2 provides low-shear slip pathways and accelerates its spreading effect at the coupling interface. This synergistic action promotes the formation of a continuous, dense tribofilm, enabling rapid run-in and low friction. This study offers a novel design approach for constructing high-performance 0D/2D synergistic lubrication systems, providing valuable insights for developing environmentally friendly liquid lubrication systems with short break-in periods and high stability.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Lubricants and Their Additives · Gear and Bearing Dynamics Analysis · Tribology and Wear Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science & Engineering
Shaanxi University of Science & Technology
Funding
National Natural Science Foundation of China · The Youth Innovation Team of Shaanxi Universities
References (53)
Show source-provided references
1. 10.1016/j.triboint.2011.11.02210.1016/j.triboint.2011.11.022 ↗
2. 10.1016/j.jcis.2025.13736710.1016/j.jcis.2025.137367 ↗
3. 10.1002/sstr.20240067110.1002/sstr.202400671 ↗
4. 10.1021/acsanm.3c0234010.1021/acsanm.3c02340 ↗
5. 10.1002/smll.20231201010.1002/smll.202312010 ↗
6. 10.1016/j.carbon.2025.12053210.1016/j.carbon.2025.120532 ↗
7. 10.1016/j.carbon.2019.05.05010.1016/j.carbon.2019.05.050 ↗
8. 10.1016/j.triboint.2025.11105910.1016/j.triboint.2025.111059 ↗
9. 10.1021/acsnano.7b0904610.1021/acsnano.7b09046 ↗
10. 10.1016/j.carbon.2024.11922610.1016/j.carbon.2024.119226 ↗
11. 10.1007/s40544-023-0774-210.1007/s40544-023-0774-2 ↗
12. 10.1016/j.ccr.2021.21391310.1016/j.ccr.2021.213913 ↗
13. 10.1016/j.addr.2018.06.02010.1016/j.addr.2018.06.020 ↗
14. 10.1016/j.pmatsci.2021.10088410.1016/j.pmatsci.2021.100884 ↗
15. 10.1021/acs.nanolett.3c0125910.1021/acs.nanolett.3c01259 ↗
16. 10.1016/j.mtchem.2018.03.00310.1016/j.mtchem.2018.03.003 ↗
17. 10.1007/s40544-022-0619-410.1007/s40544-022-0619-4 ↗
18. 10.1021/acsnano.1c0817010.1021/acsnano.1c08170 ↗
19. 10.1016/j.triboint.2023.10902310.1016/j.triboint.2023.109023 ↗
20. 10.1002/adfm.20231088010.1002/adfm.202310880 ↗
21. 10.1016/j.triboint.2018.06.03310.1016/j.triboint.2018.06.033 ↗
22. 10.1016/j.cclet.2021.03.02610.1016/j.cclet.2021.03.026 ↗
23. 10.1016/j.cej.2025.16239310.1016/j.cej.2025.162393 ↗
24. 10.1016/j.cej.2025.16483810.1016/j.cej.2025.164838 ↗
25. 10.1021/acssuschemeng.3c0484310.1021/acssuschemeng.3c04843 ↗
26. 10.1016/j.apsusc.2023.15641110.1016/j.apsusc.2023.156411 ↗
27. 10.1016/j.wear.2023.20467310.1016/j.wear.2023.204673 ↗
28. 10.1016/j.carbon.2025.12023610.1016/j.carbon.2025.120236 ↗
29. 10.1016/j.triboint.2017.09.02910.1016/j.triboint.2017.09.029 ↗
30. 10.1016/j.carbon.2023.01.05310.1016/j.carbon.2023.01.053 ↗
31. 10.1016/j.compscitech.2020.10799510.1016/j.compscitech.2020.107995 ↗
32. 10.1002/ange.20211628210.1002/ange.202116282 ↗
33. 10.1016/j.cej.2025.16675810.1016/j.cej.2025.166758 ↗
34. 10.1016/j.compositesb.2022.11046010.1016/j.compositesb.2022.110460 ↗
35. 10.1007/s40544-024-0899-y10.1007/s40544-024-0899-y ↗
36. 10.1002/adma.20207032410.1002/adma.202070324 ↗
37. 10.1021/acsami.5c0162010.1021/acsami.5c01620 ↗
38. 10.1016/j.triboint.2025.11079310.1016/j.triboint.2025.110793 ↗
39. 10.1016/j.wear.2023.20511410.1016/j.wear.2023.205114 ↗
40. 10.3390/lubricants1210036010.3390/lubricants12100360 ↗
41. 10.1021/acs.langmuir.2c0305910.1021/acs.langmuir.2c03059 ↗
42. 10.1021/acssuschemeng.1c0843410.1021/acssuschemeng.1c08434 ↗
43. 10.1016/j.carbon.2019.09.05510.1016/j.carbon.2019.09.055 ↗
44. 10.1021/acs.langmuir.2c0085210.1021/acs.langmuir.2c00852 ↗
45. 10.1016/j.cej.2023.14298610.1016/j.cej.2023.142986 ↗
46. 10.1016/j.surfin.2025.10734610.1016/j.surfin.2025.107346 ↗
47. 10.1016/j.carbon.2019.08.01410.1016/j.carbon.2019.08.014 ↗
48. 10.1021/acsami.5c1163710.1021/acsami.5c11637 ↗
49. 10.1007/s12598-025-03355-210.1007/s12598-025-03355-2 ↗
50. 10.1016/j.wear.2023.20495010.1016/j.wear.2023.204950 ↗
51. 10.1016/j.triboint.2022.10792710.1016/j.triboint.2022.107927 ↗
52. 10.1016/j.colsurfa.2025.13748610.1016/j.colsurfa.2025.137486 ↗
53. 10.1016/j.triboint.2019.03.00410.1016/j.triboint.2019.03.004 ↗