Solvothermal preparation and tribological performance of g‐C ₃ N ₄ /TiO ₂ hybrids as oil‐based lubricant additives

Abstract

TiO 2 nanospheres wrapped by graphene-like g-C 3 N 4 nanosheets were fabricated through the one-pot solvothermal process and applied as lubricant additives in paraffin base oil to characterise the tribology performances. Moreover, g-C 3 N 4 /TiO 2 composites were investigated by different characterisation methods such as X-ray diffraction, X-ray photoelectron spectroscopy, and transmission electron microscopy, indicating the formation of g-C 3 N 4 /TiO 2 composites. Subsequently, the friction experiment of the resulting samples using g-C 3 N 4 /TiO 2 hybrids as additives in base oil were tested by a multispecimen friction and wear tester (UMT-2), which indicate g-C 3 N 4 /TiO 2 composites possessed excellent tribological property including significantly reduced frictional coefficient and wear rate as an oil additive, owing to the presence of a thin physical lubricating film on the surface of the matrix.

Enhancing tribological properties of MoSe2/SnSe2/SnSe@C through 2D nanosheets modification of 3D structures

“…More importantly, nano-sized MSe 2 shows more excellent tribological properties compared to commercial MSe 2 , which can be applied in harsh working environments, e.g. high pressure and high vacuum [12][13][14][15][16] .…”

Enhancement of Triboactivity of Nanolamellar Graphitic-C3N4 by N-Doped ZnO Nanorods

“…26 Tribological performance of the hybrid g-C 3 N 4 / TiO 2 has been studied by Zhang and his group. 27 Thus, the enhanced tribological activity of functionalized g-C 3 N 4 with nanoparticles or nanosheets motivated us to explore the use of zinc oxide for its functionalization because zinc oxide nanoparticles have been widely studied as a triboactive material. 17,28−30 Zinc oxide has an open hexagonal crystal structure.…”

“…They have also evaluated the tribological performance of phenolic coatings with varying percentages of g-C 3 N 4 . Tribological performance of the hybrid g-C 3 N 4 /TiO 2 has been studied by Zhang and his group . Thus, the enhanced tribological activity of functionalized g-C 3 N 4 with nanoparticles or nanosheets motivated us to explore the use of zinc oxide for its functionalization because zinc oxide nanoparticles have been widely studied as a triboactive material. ,− …”

Covalently Bonded 2D/0D g‐C3N4/MoS2 Nanocomposites for Enhanced Tribological Properties in Oil

“…Additionally, g‐C 3 N 4 can be also applied to oil lubrication. Zhang et al [23] . have come to conclusions that carbon nitride/titanium dioxide (g‐C 3 N 4 /TiO 2 ) nanocomposites can decrease frictional coefficient and wear rate in oil, because they formed a physical lubricating film during frictional pairs.…”