Recent advances of two-dimensional lubricating materials: from tunable tribological properties to applications

Zhang, Xiaole; Ren, Tianhui; Li, Zhipeng

doi:10.1039/d2ta08489a

Cited by 27 publications

(7 citation statements)

References 216 publications

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“…Outside of the manipulation function of the PLIS on bubbles, assessing the stability of the PLIS is a crucial indicator for the evaluation of its performance. , Given the preparation method of injecting the lubricant into the rough structure, it is crucial to examine the rough structure’s ability to retain the lubricant. To that end, we positioned the LIS sample, weighing 0.4 g initially on the spin coater and rotated it rapidly.…”

Section: Resultsmentioning

confidence: 99%

Underwater Bubble Manipulation on Surfaces with Patterned Regions with Infused Lubricants

He,

Li,

et al. 2024

ACS Appl. Mater. Interfaces

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The flexible manipulation of underwater gas bubbles on solid substrates has attracted considerable research interest from scientists in the fields of water electrolysis, bubble microreactions, drug delivery, and heat transfer. Inspired by the oxygen-binding mechanisms of aquatic organisms, scientists have designed a series of interfacial materials for use in collecting gases, detecting and grading bubbles, and conducting microbubble reactions. Aerophilic surfaces are commonly used in underwater bubble manipulation platforms due to their excellent gas-trapping properties. However, during bubble transport, some of the bubbles are retained in the rough structure of the aerophilic surface and cause gas loss, which in the long run reduces the gas transport function. In addition, the aerophilic surface is prone to failure in high-humidity and high-pressure underwater environments. The lubricant-infused surface features an oil layer that remains stable on a rough substrate and is immiscible with water. Additionally, the bubbles are transported over the oil layer without causing losses other than those dissolved in water. These attributes make it more favorable than the aerophilic surface. Inspired by the unique properties of Nepenthes and cactus spines, we developed a patterned slippery surface [patterned lubricant-infused surface (PLIS)] through laser etching and ammonia etching that facilitates the coexistence of superaerophobic and aerophilic surfaces. The PLIS executes bubble capture utilizing a difference in wettability measuring 78°, transports bubbles through Laplace force and buoyancy, and regulates bubble release by restricting the contact area on the PLIS. The PLIS can be prepared rapidly and affordably in just about an hour, and its potential for large-scale production is high. Following tests for shear, acid and alkali resistance, and corrosion resistance, the PLIS exhibited impressive weathering resistance and appears to have potential for application in some extreme environments.

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Section: Resultsmentioning

confidence: 99%

Underwater Bubble Manipulation on Surfaces with Patterned Regions with Infused Lubricants

He,

Li,

et al. 2024

ACS Appl. Mater. Interfaces

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“…MoS 2 and WS 2 are commonly used as solid lubricants and are particularly suitable for vacuum applications [45,59]. Like bilayer graphene, bilayer MoS 2 has a hexagonal structure (2H phase) and exhibits frictional anisotropy in the sulfur-rich layer due to grain orientation [21,23,60,61]. However, the interlayer sliding barrier of MoS 2 is higher than that of graphene due to contact area, surface roughness, and strong interlayer atomic interactions compared to graphene, resulting in higher interlayer friction under the same conditions [62].…”

Section: Tmdsmentioning

confidence: 99%

“…In medicine, it can improve the precision and efficiency of medical-surgical systems and biodetection systems, as well as enhancing the performance of artificial joints and organs [12,131]. In aerospace and space exploration, it can improve the structural stability of related devices under extreme conditions [21,25].…”

Section: Examples Relevant Performancementioning

confidence: 99%

“…Two-dimensional nanomaterials have weak out-of-plane van der Waals force interactions, resulting in a stacked structure that is easily sheared. In addition, their atoms are tightly connected through in-plane covalent interactions [14,21,22]. This kind of structure provides 2D nanomaterials with distinctive electronic, physical, and chemical properties.…”

Section: Introductionmentioning

confidence: 99%

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Structural Superlubricity of Two-Dimensional Materials: Mechanisms, Properties, Influencing Factors, and Applications

Wu,

Zhou,

Ouyang

et al. 2024

Lubricants

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Structural superlubricity refers to the lubrication state in which the friction between two crystalline surfaces in incommensurate contact is nearly zero; this has become an important branch in recent tribological research. Two-dimensional (2D) materials with structural superlubricity such as graphene, MoS2, h-BN, and alike, which possess unique layered structures and excellent friction behavior, will bring significant advances in the development of high-performance microelectromechanical systems (MEMS), as well as in space exploration, space transportation, precision manufacturing, and high-end equipment. Herein, the review mainly introduces the tribological properties of structural superlubricity among typical 2D layered materials and summarizes in detail the underlying mechanisms responsible for superlubricity on sliding surfaces and the influencing factors including the size and layer effect, elasticity effect, moiré superlattice, edge effect, and other external factors like normal load, velocity, and temperature, etc. Finally, the difficulties in achieving robust superlubricity from micro to macroscale were focused on, and the prospects and suggestions were discussed.

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“…Nowadays, the rapid development of industry and constant consumption of fossil energy put forward high requirements for the efficiency of resource utilization. According to statistics, friction and wear cause about 20% of energy consumption in the mechanical industry, meanwhile inducing lubrication failure and equipment malfunction. , Hence, how to achieve good lubrication effect and reduce friction and wear as far as possible has been widely concerned. In practical application, single base lubricants are often inaccessible to attain desired lubrication properties, especially under extreme conditions of heavy load, high frequency, and high temperature, lubrication failure is often generated.…”

Section: Introductionmentioning

confidence: 99%

Mechanochemical Synthesis of Thiadiazole Functionalized COF as Oil-Based Lubricant Additive for Reducing Friction and Wear

Zhang,

Xue,

Yan

et al. 2024

Langmuir

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Recent advances of two-dimensional lubricating materials: from tunable tribological properties to applications

Abstract: Two dimensional (2D) nanomaterial lubricants have received increasing attention as mild and environmentally friendly friction and wear moderators, because they can act as promising industrial antiwear agents to alleviate the...

Cited by 27 publications

References 216 publications

Underwater Bubble Manipulation on Surfaces with Patterned Regions with Infused Lubricants

Underwater Bubble Manipulation on Surfaces with Patterned Regions with Infused Lubricants

Structural Superlubricity of Two-Dimensional Materials: Mechanisms, Properties, Influencing Factors, and Applications

Mechanochemical Synthesis of Thiadiazole Functionalized COF as Oil-Based Lubricant Additive for Reducing Friction and Wear

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