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    郑勇刚

    • 教授     博士生导师   硕士生导师
    • 主要任职:力学与航空航天学院副院长
    • 其他任职:工程力学系副主任(分管本科生、研究生培养)
    • 性别:男
    • 毕业院校:大连理工大学
    • 学位:博士
    • 所在单位:力学与航空航天学院
    • 学科:工程力学. 计算力学. 生物与纳米力学
    • 办公地点:一号综合实验楼626房间
    • 电子邮箱:zhengyg@dlut.edu.cn

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    Transport of liquid mercury under pressure in double-walled carbon nanotubes

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    论文类型:期刊论文

    第一作者:Zhang, Z. Q.

    通讯作者:Zhang, ZQ (reprint author), Dalian Univ Technol, Dept Engn Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China.

    合写作者:Zhang, H. W.,Zheng, Y. G.,Wang, J. B.,Wang, L.

    发表时间:2008-03-01

    发表刊物:CURRENT APPLIED PHYSICS

    收录刊物:SCIE、EI

    卷号:8

    期号:2

    页面范围:217-221

    ISSN号:1567-1739

    关键字:carbon nanotubes; molecular dynamics; transport properties

    摘要:In this paper, transport of liquid mercury under pressure through double-walled carbon nanotubes is studied using classical molecular dynamics simulations in conjunction with a pressure control model. The results indicate that wetting of double-walled carbon nanotubes by mercury occurs above a threshold pressure of liquid mercury. Liquid mercury can be transported through the inner tube of double-walled carbon nanotubes with the continuous increase of its pressure. The threshold pressure of liquid mercury decreases and the transport efficiency increases greatly with enlarging the inner tube size. The space between the two walls of double-walled carbon nanotubes can also transport the liquid mercury while the distance between the two walls is much larger than the radius of the inner tube. Transport efficiency of double-walled carbon nanotubes is a little lower than that of single-walled carbon nanotubes while double-walled carbon nanotubes transport liquid more steadily than single-walled carbon nanotubes. (C) 2007 Elsevier B.V. All rights reserved.