Rapid transport of gases in carbon nanotubes

被引：607

作者：

Skoulidas, AI

Ackerman, DM

Johnson, JK

Sholl, DS ^{[1
]}

机构：

[1] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA

[2] Univ Pittsburgh, Dept Chem & Petr Engn, Pittsburgh, PA 15261 USA

[3] Natl Energy Technol Lab, Pittsburgh, PA 15236 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 18期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.89.185901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report atomistic simulations for both self- and transport diffusivities of light gases in carbon nanotubes and in two zeolites with comparable pore sizes. We find that transport rates in nanotubes are orders of magnitude faster than in the zeolites we have studied or in any microporous material for which experimental data are available. The exceptionally high transport rates in nanotubes are shown to be a result of the inherent smoothness of the nanotubes. We predict that carbon nanotube membranes will have fluxes that are orders of magnitude greater than crystalline zeolite membranes.

引用

页数：4

共 28 条

[1]

Allen M. P., 1987, Computer Simulation of Liquids

[2] A comparison of atomistic simulations and experimental measurements of light gas permeation through zeolite membranes [J].