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    张昭

    • 教授     博士生导师   硕士生导师
    • 主要任职:Professor in Process Mechanics
    • 性别:男
    • 毕业院校:大连理工大学
    • 学位:博士
    • 所在单位:工程力学系
    • 学科:制造工艺力学. 工程力学. 计算力学
    • 办公地点:综合实验1号楼619
    • 联系方式:0411-84708432
    • 电子邮箱:zhangz@dlut.edu.cn

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    Anisotropic interfacial properties between monolayered black phosphorus and water

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    论文类型:期刊论文

    第一作者:Zhang, Zhong-Qiang

    合写作者:Liu, Han-Lun,Liu, Zhen,Zhang, Zhao,Cheng, Guang-Gui,Wang, Xiao-Dong,Ding, Jian-Ning

    发表时间:2019-05-01

    发表刊物:APPLIED SURFACE SCIENCE

    收录刊物:EI、SCIE

    卷号:475

    页面范围:857-862

    ISSN号:0169-4332

    关键字:Black phosphorus; Interfacial friction; Boundary slip; Water; Molecular dynamics

    摘要:Black phosphorus (BP) has become a novel focus of the 2D material due to its natural direct band gap and high carrier mobility, but researchers seldom refer to the water-BP interfacial properties while the natural rippled surface of the BP raises great hope to develop the controllable fluid transmission devices. In this paper, the interfacial slip and friction between monolayered BP and water are first investigated using classical molecular dynamics simulations based on the BP sheet-water Couette model. The results show that the rippled structure of the BP surface leads to the anisotropic boundary slip and interfacial friction between water and BP sheets. The maximum boundary slip and the minimum interfacial friction are obtained for the water flow direction parallel to the ripple direction of BP monolayer. With increasing the intersection angle between water flow direction and BP ripple direction, the boundary slip decreases and the interfacial friction increases continuously. The mechanism of the anisotropic interfacial properties is clarified from the configuration of the water molecules adjacent to the BP surfaces. This finding will generate excitement in designing the BP-based fluid transmission device.