Enhanced Tribological Properties of Ethylene Glycol-Based Lubricants by Nitrogen–Phosphorus Co-Doped Carbon Dots DOI Creative Commons

Haiyang Wang,

Zhongyi He, Kai Qiu

et al.

Lubricants, Journal Year: 2024, Volume and Issue: 13(1), P. 8 - 8

Published: Dec. 29, 2024

In this study, we successfully synthesized two types of nitrogen–phosphorus co-doped carbon dots (CDs), namely 6NP-CDs and eNP-CDs, incorporated them as additives into ethylene glycol-based lubricants. We systematically evaluated the effects these CD on tribological properties lubricants through four-ball friction experiments. The experimental results demonstrate that enhanced with CDs exhibit significantly improved compared to base lubricant, particularly in terms anti-wear performance. Notably, exhibited superior wear resistance reduction at concentrations 0.1 wt.% 0.2 wt.%. Furthermore, increasing concentration eNP-CDs further reduced coefficient its optimal concentration, it outperformed reduction. Molecular structure analysis indicates nitrogen phosphorus atoms, well chain length functional groups, influence characteristics. Specifically, a greater content heteroatoms longer lengths correlate suggest incorporating can lead significant enhancements performance under heavy loads.

Language: Английский

Mechanical properties and tribological behaviors of Ag/graphene composite coating under sliding friction and current-carrying fretting DOI
Zhengfeng Cao, Rui Li, Mengjie Shou

et al.

Tribology International, Journal Year: 2024, Volume and Issue: 197, P. 109811 - 109811

Published: May 22, 2024

Language: Английский

Citations

8
Preparation of Polyoxymethylene/Exfoliated Molybdenum Disulfide Nanocomposite through Solid-State Shear Milling DOI Open Access
Shuo Feng, Xin-Wen Zhou, Sen Yang

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(10), P. 1334 - 1334

Published: May 9, 2024

In this paper, the solid-state shear milling (S3M) strategy featuring a very strong three-dimensional stress field was adopted to prepare high-performance polyoxymethylene (POM)/molybdenum disulfide (MoS2) functional nanocomposite. The transmission electron microscope and Raman measurement results confirmed that bulk MoS2 particle successfully exfoliated into few-layer nanoplatelets by above simple S3M physical method. polarized optical (PLM) observation indicated pan-milled nanoscale particles presented better dispersion performance in POM matrix. of tribological test incorporation could substantially improve wear resistance POM. Moreover, nanosheets further decrease friction coefficient Scanning observations on worn scar revealed mechanism POM/MoS2 nanocomposite prepared milling. tensile showed has much higher elongation at break than conventionally melt-compounded material. shows promising prospect preparation with excellent comprehensive large scale.

Language: Английский

Citations

4
Preparation of MoS2/bentonite nanohybrid and its tribological properties as lubricant for water-based drilling fluids DOI
Xue Wang, Congcong Ma,

Guangbin Yang

et al.

Tribology International, Journal Year: 2024, Volume and Issue: 202, P. 110309 - 110309

Published: Oct. 10, 2024

Language: Английский

Citations

4
Synergistic Lubrication Achieved by Proton-Ionic Liquids and MoS2 as High-Performance Water-Based Lubricant Additives DOI

Xiangyu Zuo,

Hongxiang Yu, Feng Zhou

et al.

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

Published: Feb. 20, 2025

Two-dimensional materials and ionic liquids are widely used as lubricating due to their excellent tribological properties. This study designed three water-based proton-ionic (PILs) synthesized molybdenum disulfide (MoS2) nanosheets for combination lubricant additives. The composite lubrication system exhibits properties, with a friction coefficient low 0.024, reducing by 90.77% compared water-glycol. Mechanism studies have shown that the performance comes from adsorption of at sliding interfaces, interlayer slip MoS2, generation tribofilms wear scars. work provides theoretical support technical guidance design preparation new

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: unknown, P. 112384 - 112384

Published: April 1, 2025

Language: Английский

Citations

0
Super-low friction and wear in steel contacts enabled by tribo-induced structural degradation of graphene quantum dots DOI Creative Commons
Irfan Nadeem, Bojan Ambrožič, Goran Dražič

et al.

Materials & Design, Journal Year: 2024, Volume and Issue: 244, P. 113111 - 113111

Published: June 22, 2024

Reducing friction is a promising strategy to decrease material losses and energy consumption in industrial systems. However, aqueous-lubricated steel contacts, the contact pressure rarely exceeds 50 MPa during super-low due excessive wear. This work demonstrates that even steel/steel by combining graphene quantum dots (GQDs) with aqueous glycerol, it possible maintain (µ ≈ 0.012) under as high 316.5 MPa. Moreover use of GQDs improved wear performance 98 % compared pure glycerol formation tribochemical film, resulting from electrostatic adsorption on positively charged sites worn surface. In particular, exfoliation sheets within GQDs, shearing layers inside OH–OH repulsion between asperities shortens running-in period consequently reduces At same time, chemically adsorbed tribofilm containing friction-induced structurally degraded protects surface facilitates maintenance at pressures improving load-carrying capacity. study suggests green nano-lubricants based have immense potential sustainable engineering.

Language: Английский

Citations

3
Microstructure, mechanical properties and tribological properties of NiCrAlY-Ag-SrF2 self-lubricating coatings by detonation spraying DOI
J.H. Liu, Wenyuan Chen, Juanjuan Chen

et al.

Tribology International, Journal Year: 2024, Volume and Issue: 199, P. 110047 - 110047

Published: July 27, 2024

Language: Английский

Citations

1
Wettability and lubricity of borosilicate glass to H13 steel and TZM alloy at 900 ℃ DOI
Xuhui He, Yufei Wang,

Minghui Lang

et al.

Tribology International, Journal Year: 2024, Volume and Issue: 202, P. 110360 - 110360

Published: Oct. 30, 2024

Language: Английский

Citations

0
Enhanced Tribological Properties of Ethylene Glycol-Based Lubricants by Nitrogen–Phosphorus Co-Doped Carbon Dots DOI Creative Commons

Haiyang Wang,

Zhongyi He, Kai Qiu

et al.

Lubricants, Journal Year: 2024, Volume and Issue: 13(1), P. 8 - 8

Published: Dec. 29, 2024

In this study, we successfully synthesized two types of nitrogen–phosphorus co-doped carbon dots (CDs), namely 6NP-CDs and eNP-CDs, incorporated them as additives into ethylene glycol-based lubricants. We systematically evaluated the effects these CD on tribological properties lubricants through four-ball friction experiments. The experimental results demonstrate that enhanced with CDs exhibit significantly improved compared to base lubricant, particularly in terms anti-wear performance. Notably, exhibited superior wear resistance reduction at concentrations 0.1 wt.% 0.2 wt.%. Furthermore, increasing concentration eNP-CDs further reduced coefficient its optimal concentration, it outperformed reduction. Molecular structure analysis indicates nitrogen phosphorus atoms, well chain length functional groups, influence characteristics. Specifically, a greater content heteroatoms longer lengths correlate suggest incorporating can lead significant enhancements performance under heavy loads.

Language: Английский

Citations

0