Operando Formation of Van der Waals Heterostructures for Achieving Macroscale Superlubricity on Engineering Rough and Worn Surfaces

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成果类型：

期刊论文

作者：

Li, Ruiyun;Yang, Xing;Zhao, Jun;Yue, Chengtao;Wang, Yongfu*;...

通讯作者：

Wang, Yongfu;Zhang, Junyan;Meyer, Ernst

作者机构：

[Wang, Yongfu; Zhang, JY; Zhang, Junyan; Li, Ruiyun; Yang, Xing] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 70000, Peoples R China.

[Li, Ruiyun; Li, Jiangong] Lanzhou Univ, Inst Mat Sci & Engn, Lanzhou 730000, Peoples R China.

[Shi, Yijun; Zhao, Jun] Lulea Univ Technol, Div Machine Elements, SE-97187 Lulea, Sweden.

[Yue, Chengtao] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.

[Meyer, Ernst] Univ Basel, Dept Phys, Klingelbergstr 82, CH-4056 Basel, Switzerland.

通讯机构：

[Wang, YF; Zhang, JY] C

[Meyer, Ernst; Zhang, Junyan] U

Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 70000, Peoples R China.

Univ Basel, Dept Phys, Klingelbergstr 82, CH-4056 Basel, Switzerland.

Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China.

语种：

英文

关键词：

graphene;MoS 2;superlubricity;surface roughening;tribochemical reactions;van der Waals heterostructures

期刊：

Advanced Functional Materials

ISSN：

1616-301X

年：

2022

卷：

期：

页码：

2111365-

DOI：

10.1002/adfm.202111365

基金类别：

R.L. and X.Y. contributed equally to this work. The authors would like to thank the National Natural Science Foundation of China (Grant Nos. 52005233, 51905517, 51661135022), the Swiss National Science Foundation and the Swiss Institute for Nanoscience, and LICP Cooperation Foundation for Young Scholars (HZJJ20‐01) and CAS “Light of West China” Program.

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本校为其他机构

院系归属：

核科学技术学院

摘要：

Macroscale superlubricity breakdown of lubricating materials caused by substrate surface roughening and mechanochemical modification poses great challenges for their practical tribological applications. Here, a facile way is reported to access robust macroscale superlubricity in a vacuum environment, via the operando formation of graphene/transition-metal dichalcogenide (TMDC) heterostructures at wear-induced rough surfaces. By trapping active amorphous carbon (a-C) wear products between TMDC flakes, the sandwich structures readily transform in...

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Operando Formation of Van der Waals Heterostructures for Achieving Macroscale Superlubricity on Engineering Rough and Worn Surfaces

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