Measurement of the Rate of Water Translocation through Carbon Nanotubes

被引：300

作者：

Qin, Xingcai ^{[1
]}

Yuan, Quanzi ^{[2
]}

Zhao, Yapu ^{[2
]}

Xie, Shubao ^{[1
]}

Liu, Zhongfan ^{[1
]}

机构：

[1] Peking Univ, Coll Chem & Mol Engn, State Key Lab Struct Chem Unstable & Stable Speci, Ctr Nanochem,Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China

[2] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China

来源：

NANO LETTERS | 2011年 / 11卷 / 05期

基金：

美国国家科学基金会;

关键词：

Nanofluidics; water flow velocity; enhancement factor; slip length; CNT-FET; RAMAN-SPECTROSCOPY; FLOW; TRANSPORT; GROWTH;

D O I：

10.1021/nl200843g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present an approach for measuring the water flow rate through individual ultralong carbon nanotubes (CNTs) using field effect transistors array defined on individual tubes. Our work exhibits a rate enhancement of 882-51 and a slip length of 53-8 nm for CNTs with diameters of 0.81-1.59 nm. We also found that the enhancement factor does not increase monotonically with shrinking tube diameter and there exists a discontinuous region around 0.98-1.10 nm. We believe that these single-tube level results would help understand the intrinsic nanofluidics of water in CNTs.

引用

收藏

页码：2173 / 2177

页数：5

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