Defects in arc-discharge-produced single-walled carbon nanotubes

被引：49

作者：

Zhang, Y

Iijima, S

Shi, Z

Gu, Z

机构：

[1] NEC Corp Ltd, Fundamental Res Labs, Tsukuba, Ibaraki 3058501, Japan

[2] Peking Univ, Dept Chem, Beijing 100871, Peoples R China

[3] Meijo Univ, Dept Phys, Japan Sci & Technol Corp, Nagoya, Aichi 4688502, Japan

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 1999年 / 79卷 / 07期

关键词：

D O I：

10.1080/095008399177110

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High-yield single-wall carbon nanotubes (SWCNTs) have been produced in large quantity using a Y-Ni alloy composite graphite rod as anode in a de are discharge. Termination of the tubes was found to be the most common defect in the arc-discharge-produced SWCNTs. A comparison is wade with samples produced by laser ablation. High-resolution transmission electron microscopy was used to investigate the cap structure of the terminated SWCNTs and their relatives. The cap shapes of most SWCNTs with high aspect ratios are hemispherical, while those of highly defective squat SWCNTs are polyhedral. Inclusion of carbon materials in the SWCNTs was also observed. The results provided the basic information for understanding the growth mechanism of SWCNTs.

引用

页码：473 / 479

页数：7

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