Fabrication of Novel CeO2/GO/CNTs Ternary Nanocomposites with Enhanced Tribological Performance

Abstract

Increasing demands of multi-functional lubricant materials with well distributed nanoparticles has been generated in the field of oil lubrication. In this study, one-dimensional (1-D) acidified multi-walled carbon nanotubes (CNTs) and two-dimensional (2-D) graphene oxide (GO) sheets were dispersed together under an ultra-sonication condition to form CNTs/GO hybrids and the corresponding CNTs/GO hybrids decorated with uniform zero-dimensional (0-D) cerium oxide (CeO2) nanoparticles were prepared via a facile hydrothermal method. The tribological performance of CeO2/CNTs/GO ternary nanocomposite was systematically investigated using a MS-T3000 ball-on-disk tester. The results demonstrated that CeO2/GO/CNTs nanocomposites can effectively reduce the friction of sliding pairs in paraffin oil. Moreover, the oil with 1 wt% of CeO2/GO/CNTs exhibited the best lubrication properties with the lowest friction coefficient and wear scar diameters (WSD) compared with adding only GO nanosheet, CeO2, and CeO2/CNTs hybrid nanocomposite as lubricant additives. It is concluded that due to the synergistic effect of 0D CeO2, 1D CNTs, and 2D GO during sliding process, a dimensionally mixed CeO2/GO/CNTs nanocomposite exhibits excellent lubricating properties, providing innovative and effective additives for application in the field of lubrication.

Tribological and Anticorrosion Performance of Electroplated Zinc Based Nanocomposite Coatings

“…An application of inorganic or organic particles also creates opportunities for the multifunctional modification of zinc coatings. The addition of hard particles such as SiO 2 , TiO 2 and CeO 2, improves coating hardness and wear resistance [6]. Soft particles like PTFE, polystyrene or polymethylmethacrylate can equip zinc coatings with a low coefficient of friction or hydrophobic properties [7].…”

Preparation of NiO decorated CNT/ZnO core-shell hybrid nanocomposites with the aid of ultrasonication for enhancing the performance of hybrid supercapacitors

“…The major peak of C 1s core-level spectrum at 283 eV is deconvoluted into 3 peaks corresponding to C—C, C—OH, and C O bonds, at 283, 283.7, and 287.6 eV, respectively ( Fig. 4 e) [35] . Fig.…”

Multi-Walled Carbon Nanotubes

“…The trends and advances regarding the synthetic routes and structural properties of MWCNTs-based (nano)composites have been discussed in several reports [2][3][4][5][6], proving the importance of this topic for pushing MWCNT exploitation and industrial use forward. Ma et al [2] proposed a new route for the synthesis of MWCNT nanohybrids using azide-terminated poly(methyl methacrylate), through the utilization of a combination of reversible addition fragmentation chain transfer and the alkyne-azide click reaction.…”

“…The prepared composites have an interesting potential for electromagnetic interference shielding applications [4] and microwave absorbing uses (although only low weight percentage should be used) [5]. In addition, Min et al [6] developed a novel nanocomposite based on acidified MWCNTs, graphene oxide, and cerium oxide nanoparticles, which displayed a promising tribological performance.…”