CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Unexpected large impact of small charges on surface frictions with similar wetting properties
Wang, CL; Yang, HJ; Wang, X; Qi, CH; Qu, MY; Sheng, N; Wan, RZ; Tu, YS; Shi, GS
2020
Source PublicationCOMMUNICATIONS CHEMISTRY
ISSN2399-3669
Volume3Issue:1Pages:-
Subtype期刊论文
AbstractGenerally, 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.
KeywordWATER TRANSPORT CONTACT-ANGLE BORON-NITRIDE HYDROPHOBICITY DYNAMICS SLIPPAGE GRAPHENE ORIGIN FLOW
DOI10.1038/s42004-020-0271-8
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/33251
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
2.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China
3.Yangzhou Univ, Coll Phys Sci & Technol, Yangzhou 225009, Jiangsu, Peoples R China
4.Shandong Univ, Sch Phys, Jinan 250100, Peoples R China
5.Shanghai Univ, Shanghai Appl Radiat Inst, Shanghai 200444, Peoples R China
6.Shanghai Univ, State Key Lab Adv Special Steel, Shanghai 200444, Peoples R China
Recommended Citation
GB/T 7714
Wang, CL,Yang, HJ,Wang, X,et al. Unexpected large impact of small charges on surface frictions with similar wetting properties[J]. COMMUNICATIONS CHEMISTRY,2020,3(1):-.
APA Wang, CL.,Yang, HJ.,Wang, X.,Qi, CH.,Qu, MY.,...&Shi, GS.(2020).Unexpected large impact of small charges on surface frictions with similar wetting properties.COMMUNICATIONS CHEMISTRY,3(1),-.
MLA Wang, CL,et al."Unexpected large impact of small charges on surface frictions with similar wetting properties".COMMUNICATIONS CHEMISTRY 3.1(2020):-.
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