Research Progress in Application of 2D Materials in Liquid-Phase Lubrication System

Abstract

Two-dimensional (2D) materials are ultra-thin crystals with layered structures that have a monolayer and multiple layers of atomic thickness. Due to excellent performance, 2D materials represented by graphene have caused great interest from researchers in various fields, such as nano-electronics, sensors, solar cells, composite materials, and so on. In recent years, when graphite was used for liquid phase lubrication, there have been many disadvantages limiting its lubrication properties, such as stable dispersion, fluidity and so on. Therefore, 2D materials have been used as high-performance liquid-phase lubricant additives, which become a perfect entry point for high-performance nano-lubricants and lubrication applications. This review describes the application of 2D materials as additives in the field of liquid-phase lubrication (such as lubricating oil and water lubrication) in terms of experimental content, lubrication performance, and lubrication mechanism. Finally, the challenges and prospects of 2D materials in the lubrication field were also proposed.

A review of recent advances in tribology

“…2D Materials, as a shining star in various fields, also possess excellent anti-friction properties because of the enhanced film formation [127,128], the self-healing or mending effects [129], and the ball bearing effect [130]. The liquid lubrication with additives of graphene class materials attracted a lot of attention recently.…”

Synergistic Lubricating Behaviors of 3D Graphene and 2D Hexagonal Boron Nitride Dispersed in PAO4 for Steel/Steel Contact

“…One of the most effective ways to control friction and wear is the application of lubricants in liquids and solids (such as lubricants, emulsions, greases, and coatings). [ 4,5 ] In addition, the lubricant protects the metal surface from rust and corrosion, as a heat transfer agent, remove contaminants, absorb the impact and forms a seal.…”

Emerging 2D Materials and Their Van Der Waals Heterostructures

“…The advent of graphene [1][2][3], and more recently of two-dimensional (2D) layered materials [4], has opened new perspectives in electronics, optoelectronics, energy generation, and sensing applications [5]. Two-dimensional materials can be fabricated with relatively inexpensive production methods, integrated into existing semiconductor technologies, and offer new physical and chemical properties [6][7][8]. Electrically, they can behave as insulators, semiconductors, metals, or even superconductors.…”