Dispersing carbon nanotubes in water: A noncovalent and nonorganic way

被引：87

作者：

Zhu, J

Yudasaka, M

Zhang, MF

Iijima, S

机构：

[1] NEC Corp Ltd, Japan Sci & Technol Corp, Carbon Nanotube Project, Tsukuba, Ibaraki 3058501, Japan

[2] Meijo Univ, Dept Phys, Tenpaku Ku, Nagoya, Aichi 4688502, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2004年 / 108卷 / 31期

关键词：

D O I：

10.1021/jp0494032

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new noncovalent and nonorganic method has been utilized in dispersing single-walled carbon nanotubes (SWNTs) in water, up to single tube level. SWNTs, otherwise flocculated in aqueous solutions, were stabilized through the addition of highly charged nanoparticles. The dispersed SWNTs could be self-assembled into macroscopic materials in solutions by the application of external stimuli. By anchoring the solution SWNTs onto pyrene-modified Si/SiO2 surfaces, discrete, individual nanotubes have been observed by atomic force microscopy (AFM). This new type of SWNT aqueous dispersions might open up new avenues in the fields of nanostructured materials, biological sensing, and nanotube electronics.

引用

收藏

页码：11317 / 11320

页数：4

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