Modification on the tribological properties of ceramics lubricated by water using fullerenol as a lubricating additive

Liu, Yuhong; Wang, Xiaokang; Liu, PengXiao; Zheng, Junpeng; Shu, Chunying; Pan, Guoshun; Luo, Jianbin

doi:10.1007/s11431-012-4938-y

Cited by 24 publications

(7 citation statements)

References 27 publications

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“…Their results suggested that the introduced fullerenes can increase the viscosity of the lubricating oil and reduce the contact between frictional surfaces. In addition to the oil-based lubrication, Liu et al , synthesized various water-soluble fullerene derivatives, which improved the antifriction and antiwear abilities, shortened the running-in period and enhanced the carrying capacity of the lubricating film in the water-based lubrication. On the other hand, in terms of solid lubrication researchers have improved the tribological properties by constructing fullerene molecular coating films (such as LB films and self-assembled monolayers (SAMs)) on frictional surfaces .…”

Section: Introductionmentioning

confidence: 99%

Superlubricity of Fullerene Derivatives Induced by Host–Guest Assembly

Tan

Shi

et al. 2020

ACS Appl. Mater. Interfaces

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Fullerenes have been recognized as good candidates for solid lubricants. In this study, the microscale superlubricity of fullerene derivatives was accomplished by the construction of regular host–guest assembly structures. Herein, the host–guest assembly structures of fullerene derivatives were successfully constructed on a highly oriented pyrolytic graphite (HOPG) surface by introducing the macrocycles as the templates and were explicitly revealed by scanning tunneling microscopy (STM). Meanwhile, the nanotribological properties of the host–guest assemblies were measured using atomic force microscopy (AFM), revealing ultralow friction coefficients of 0.003–0.008, which could be attributed to the restriction on removal of fullerene molecules after introducing the templates. The interaction energies were calculated by density functional theory (DFT) method, which indicates the correlation between friction coefficients and interaction strength in the host–guest assemblies. The effort on fullerene-related superlubricity could extend the solid superlubrication systems and provide a novel pathway to explore the friction mechanisms at the molecular level.

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Section: Introductionmentioning

confidence: 99%

Superlubricity of Fullerene Derivatives Induced by Host–Guest Assembly

Tan

Shi

et al. 2020

ACS Appl. Mater. Interfaces

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“…Studies of nanoparticulate additives have also been extended to nonpetroleum-based uids, including water (e.g. fullerenols, 20 ZnO and Al 2 O 3 nano-particulates 11,13,21 ) and ionic liquids (e.g. functionalized multi-walled carbon nanotubes 22 ).…”

Section: Introductionmentioning

confidence: 99%

Tribological properties of nanodiamonds in aqueous suspensions: effect of the surface charge

et al. 2015

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“…Additionally, the general studies of water-based nanolubricants tend to shift towards smaller particle size which can improve the stability, solubility, and tribological properties in water because of its small size effects and interaction of surface groups. As spherical nanoclusters at molecular level, fullerenol and its derivatives with good water solubility and stability show great application potential as water-based lubricant additives because of its unique structure and excellent physical properties [ 21 , 22 , 23 , 24 , 25 , 26 , 27 ]. To the best of our knowledge, however, research about the tribological properties of water-soluble fullerenol are very few at present and lack systematical research results.…”

Section: Introductionmentioning

confidence: 99%

Study of Tribological Properties of Fullerenol and Nanodiamonds as Additives in Water-Based Lubricants for Amorphous Carbon (a-C) Coatings

Chen

Ding

et al. 2021

Nanomaterials

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The tribological performances of fullerenol and nanodiamonds (NDs) as additives in water-based lubricants for amorphous carbon (a-C) coatings are investigated to avoid disadvantage factors, such as chemical reactions and deformation of particles. The effects of size and additive amount on tribological properties of nanoparticles are studied by rigid nanoparticles within the dot size range. The results show that owing to its small particle size (1–2 nm), fullerenol cannot prevent direct contact of the friction pair at low concentration conditions. Only when the quantity of fullerenol increased to support the asperity contact loads in sufficient concentration did nano-bearings perform well in anti-friction and anti-wear effects. Unlike fullerenol, nanodiamond particles with a diameter of about 5–10 nm show friction-reducing effect based on the nano-bearing effects at ultra-low concentration (0.01 wt.%), whereas particles at higher concentration block the rolling movement, hence increasing the coefficient of friction (COF) and wear. As a result of the effect of difference in size, fullerenol provides a better overall lubrication, but it is hard to reach a friction coefficient as low as NDs even under the optimal conditions.

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Modification on the tribological properties of ceramics lubricated by water using fullerenol as a lubricating additive

Cited by 24 publications

References 27 publications

Superlubricity of Fullerene Derivatives Induced by Host–Guest Assembly

Superlubricity of Fullerene Derivatives Induced by Host–Guest Assembly

Tribological properties of nanodiamonds in aqueous suspensions: effect of the surface charge

Study of Tribological Properties of Fullerenol and Nanodiamonds as Additives in Water-Based Lubricants for Amorphous Carbon (a-C) Coatings

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