Carbon nanomaterials as additives in lubricating oils for tribological applications: A review DOI
Zheyin Yu,

Meng Zhou,

Rende Liu

et al.

Diamond and Related Materials, Journal Year: 2025, Volume and Issue: 156, P. 112384 - 112384

Published: April 29, 2025

Language: Английский

Dynamic Directional Ultrasonically In Situ-Generated N,S-Codoped Carbon Dots in Poly(ethylene glycol) for Improved Tribological Performance DOI

Guangkai Jin,

Yuhong Cui, Tiantian Wang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(30), P. 39896 - 39905

Published: July 16, 2024

The dispersion stability of nanomaterials in lubricants significantly influences tribological performance, yet their addition as lubricant additives often presents challenges secondary dispersion. Here, we present a straightforward method for situ preparation N,S-codoped CDs (N,S-CDs)-based using heterocyclic aromatic hydrocarbons containing N/S elements poly(ethylene glycol) (PEG) base oil by directional ultrasound strategy. Two types N,S-CDs were successfully prepared via the treatment PEG with benzothiazole (BTA) and benzothiadiazole (BTH) separately. resultant have uniform distribution N S maintain good colloidal even after 9 months storage. can enter surface gap friction pairs then induce tribochemical reaction. Benefiting from synergistic effect activating elements, robust stable protective film consisting iron sulfides, oxides, carbon nitrides, amorphous carbonaceous compounds is formed, thus endowing N,S-CDs-based improved antiwear friction-reducing performance. Compared pure PEG, coefficient (COF) N,S-CDs(BTH)-based decreased to 0.108 0.292, accompanied 91.2% reduction wear volume, maximum load carrying capacity increased 450 150 N.

Language: Английский

Citations

10

Tribological properties and molecular dynamics analysis of citric acid modified 3D porous graphene/carbon black as lubricant additives DOI
Jingjing Fei, Lin Zhao, Qingbin Zheng

et al.

Tribology International, Journal Year: 2025, Volume and Issue: unknown, P. 110648 - 110648

Published: March 1, 2025

Language: Английский

Citations

2

Fabrication of Dialkyl Dithiophosphate-Functionalized Carbon Aerogel Microspheres for Enhanced Lubrication Performance DOI

Jingwen Hou,

Guangkai Jin,

Zhichao Wang

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: March 14, 2025

Herein, functionalized carbon aerogel microspheres (CAMs) were successfully prepared by the pyrolysis of resorcinol-formaldehyde (RF) followed surface modification. First, RF carbonized to obtain CAMs. Afterward, polyphenolic compound epigallocatechin gallate (EGCG) was reacted with melamine form a poly(EGCG) layer onto CAM surface, bonding antiwear molecule dialkyl dithiophosphate (DDP) Michael addition, resulting in DDP-functionalized CAMs (DDP-CAMs). The grafting DDP improved lipophilicity CAMs, enabling stable dispersion base oil 500SN for over 10 days while also enhancing their antifriction and properties. addition 1.0 wt % DDP-CAMs resulted 34.7% reduction coefficient friction 47.5% decrease wear volume. enhanced lubrication performance can be attributed synergistic effect. On one hand, protective film generated through tribo-chemical reactions. At same time, present at contact interface exhibited nanoscale rolling self-repairing

Language: Английский

Citations

1

Novel Sustainable Grease Developed from Waste Cooking Mustard Oil and Garlic Oil: A Study of Rheological and Extreme Pressure Properties DOI

Aamir Hameed Malik,

M. Jebran Khan, M.F. Wàňi

et al.

Journal of Tribology, Journal Year: 2025, Volume and Issue: 147(6)

Published: Jan. 21, 2025

Abstract The rheological and tribological performances of waste cooking oil (WCO)-based novel sustainable grease with garlic as an extreme pressure (EP) additive were examined according to the ASTM standards (ASTM D1092 D2783) using a four-ball tester. commercially available lithium-based served reference for comparing evaluating properties WCO-based greases. addition 6% EP increased weld load from 1560 N 2450 N. average wear scar diameter WCO + (GO 6 wt%) is reduced by 13.87% 19.30%, respectively, compared that commercial (MIDCO AP-3) grease. Furthermore, viscosity shear stress higher thickener concentrations, achieving performance comparable It envisaged oil-filled base will not only have good lubricating but also pose minimum environmental hazards.

Language: Английский

Citations

0

Potential and progress of two-dimensional nanomaterials in oil-based lubrication DOI

Changxing Yang,

Guxia Wang,

Shengwei Guo

et al.

Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 111178 - 111178

Published: April 1, 2025

Language: Английский

Citations

0

Carbon nanomaterials as additives in lubricating oils for tribological applications: A review DOI
Zheyin Yu,

Meng Zhou,

Rende Liu

et al.

Diamond and Related Materials, Journal Year: 2025, Volume and Issue: 156, P. 112384 - 112384

Published: April 29, 2025

Language: Английский

Citations

0