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Wang C, Yang H, Wang X, Qi C, Qu M, Sheng N, Wan R, Tu Y, Shi G. Unexpected large impact of small charges on surface frictions with similar wetting properties. Commun Chem 2020; 3:27. [PMID: 36703380 PMCID: PMC9814279 DOI: 10.1038/s42004-020-0271-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 02/04/2020] [Indexed: 01/29/2023] Open
Abstract
Generally, the interface friction on solid surfaces is regarded as consistent with wetting behaviors, characterized by the contact angles. Here using molecular dynamics simulations, we find that even a small charge difference (≤0.36 e) causes a change in the friction coefficient of over an order of magnitude on two-dimensional material and lipid surfaces, despite similar contact angles. This large difference is confirmed by experimentally measuring interfacial friction of graphite and MoS2 contacting on water, using atomic force microscopy. The large variation in the friction coefficient is attributed to the different fluctuations of localized potential energy under inhomogeneous charge distribution. Our results help to understand the dynamics of two-dimensional materials and biomolecules, generally formed by atoms with small charge, including nanomaterials, such as nitrogen-doped graphene, hydrogen-terminated graphene, or MoS2, and molecular transport through cell membranes.
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Affiliation(s)
- Chunlei Wang
- grid.450275.10000 0000 9989 3072Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800 China ,grid.458506.a0000 0004 0497 0637Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210 China
| | - Haijun Yang
- grid.450275.10000 0000 9989 3072Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800 China ,grid.458506.a0000 0004 0497 0637Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210 China
| | - Xian Wang
- grid.268415.cCollege of Physics Science and Technology, Yangzhou University, Jiangsu, 225009 China
| | - Chonghai Qi
- grid.450275.10000 0000 9989 3072Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800 China ,grid.27255.370000 0004 1761 1174School of Physics, Shandong University, Jinan, 250100 China
| | - Mengyang Qu
- grid.450275.10000 0000 9989 3072Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800 China
| | - Nan Sheng
- grid.450275.10000 0000 9989 3072Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800 China ,grid.458506.a0000 0004 0497 0637Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210 China
| | - Rongzheng Wan
- grid.450275.10000 0000 9989 3072Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800 China ,grid.458506.a0000 0004 0497 0637Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210 China
| | - Yusong Tu
- grid.268415.cCollege of Physics Science and Technology, Yangzhou University, Jiangsu, 225009 China
| | - Guosheng Shi
- grid.39436.3b0000 0001 2323 5732Shanghai Applied Radiation Institute and State Key Lab. Advanced Special Steel, Shanghai University, Shanghai, 200444 China
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Doust Mohammadi M, Hamzehloo M. The adsorption of bromomethane onto the exterior surface of aluminum nitride, boron nitride, carbon, and silicon carbide nanotubes: A PBC-DFT, NBO, and QTAIM study. COMPUT THEOR CHEM 2018. [DOI: 10.1016/j.comptc.2018.10.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Mandeep, Sharma L, Kakkar R. DFT study on the adsorption of p-nitrophenol over vacancy and Pt-doped graphene sheets. COMPUT THEOR CHEM 2018. [DOI: 10.1016/j.comptc.2018.08.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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