Infiltration behaviour of water in a carbon nanotube under external pressure

被引：32

作者：

Cao, Guoxin ^{[1
]}

Qiao, Yu ^{[2
]}

Zhou, Qulan ^{[1
,3
]}

Chen, Xi ^{[1
]}

机构：

[1] Columbia Univ, Dept Civil Engn & Engn Mech, Columbia Nanomech Res Ctr, New York, NY 10027 USA

[2] Univ Calif San Diego, Dept Struct Engn, La Jolla, CA 92093 USA

[3] Xi An Jiao Tong Univ, State Key Lab Power Engn Multiphase Flow, Xian 710049, Peoples R China

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 2008年 / 88卷 / 05期

基金：

美国国家科学基金会;

关键词：

carbon nanotube; water infiltration; simulation;

D O I：

10.1080/09500830802050415

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The wetting behaviour and associated pressure effect of water in single-walled carbon nanotubes (SWCNTs) are investigated through molecular dynamics (MD) simulations. It is found that water molecules can enter SWCNTs via surface diffusion, and the effective infiltration rate increases with pressure. The effect of pressure on infiltration rate is highly non-linear, exhibiting characteristics of both hydrophilic and hydrophobic surfaces. There exists a nominal infiltration pressure that is dependent on the SWCNT size, above which the water flux is significantly increased.

引用

页码：371 / 378

页数：8

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