Functional Nanostructured Materials (including low-D carbon)
- Xiaole Zhang*
Xiaole Zhang
School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
*Email: [emailprotected]
More by Xiaole Zhang
- Xuteng Zhao
Xuteng Zhao
School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
More by Xuteng Zhao
- Qiangqiang Jia
Qiangqiang Jia
School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
More by Qiangqiang Jia
- Yue Jiang
Yue Jiang
School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
More by Yue Jiang
- Junnan Liu
Junnan Liu
School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
More by Junnan Liu
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ACS Applied Materials & Interfaces
Cite this: ACS Appl. Mater. Interfaces 2025, XXXX, XXX, XXX-XXX
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https://pubs.acs.org/doi/10.1021/acsami.5c02117
Published April 28, 2025
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Abstract
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Eco-friendly two-dimensional (2D) nanolubricants have emerged as promising candidates for advanced functional materials. However, challenges such as poor dispersion stability and weak interfacial adhesion limit their widespread application. Herein, we developed a method to tailor WS2 nanosheets functionalized with γ-aminopropyltriethoxysilane (γ-APS), enhancing their interaction with phosphate ester groups from di(2-ethylhexyl) phosphate (DEPS), which leads to the creation of gel-like WS2-NH-DEPS additives with excellent dispersive and tribological properties in polyalphaolefin (PAO6). Specifically, a 0.5 wt % WS2-NH-DEPS/PAO6 dispersion achieves the reduction of ∼40% in the coefficient of friction (COF) and the decrease of ∼70% in the wear scar diameter (WSD) compared to pure PAO6. Surface analysis reveals that the unique structure of exfoliated WS2 nanosheets and their synergistic interactions with phosphonate groups facilitate the formation of a hybrid protective film composed of embedded WS2 nanosheets, phosphoric acid compounds, and other oxides such as FeOX, FeNOX, and FeSOX to enhance the tribological performance, providing essential insights for developing nanomaterial-based lubricants in advanced mechanical systems.
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© 2025 American Chemical Society
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- Colloids
- Covalent organic frameworks
- Friction
- Two dimensional materials
- Wear
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ACS Applied Materials & Interfaces
Cite this: ACS Appl. Mater. Interfaces 2025, XXXX, XXX, XXX-XXX
Click to copy citationCitation copied!
Published April 28, 2025
Publication History
Received
Accepted
Revised
Published
online
© 2025 American Chemical Society
Request reuse permissions
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