Adsorption of linear chain molecules on carbon nanotubes

被引：13

作者：

Alldredge, E. S. ^{[1
]}

Badescu, S. C. ^{[1
]}

Bajwa, N. ^{[1
]}

Perkins, F. K. ^{[1
]}

Snow, E. S. ^{[1
]}

Reinecke, T. L. ^{[1
]}

Passmore, J. L. ^{[2
]}

Chang, Y. L. ^{[2
]}

机构：

[1] USA, Res Lab, Washington, DC 20375 USA

[2] Nanomix Inc, Emeryville, CA 94608 USA

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.78.161403

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate molecular adsorption on single-walled carbon nanotubes (NTs) by ab initio calculations and by measurements of the conductivity response of NT arrays to trace vapors for a range of linear chain molecules. Experiment and calculations show that the short-time responses give adsorption energies that increase linearly with the molecular length. This systematic dependence indicates that the initial adsorption occurs on the defect-free regions of NTs and that these regions can play an important role in the adsorption process on NTs.

引用

页数：4

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