High-yield synthesis of single-walled carbon nanotubes by gravity-free arc discharge

被引：33

作者：

Kanai, M

Koshio, A

Shinohara, H ^{[1
]}

Mieno, T

Kasuya, A

Ando, Y

Zhao, X

机构：

[1] Nagoya Univ, Dept Chem, Nagoya, Aichi 4648602, Japan

[2] Shizuoka Univ, Dept Phys, Shizuoka 4228529, Japan

[3] Tohoku Univ, Interdisciplinary Res Ctr, Sendai, Miyagi 9808578, Japan

[4] Meijo Univ, Dept Phys, Nagoya, Aichi 4688502, Japan

来源：

APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 18期

关键词：

D O I：

10.1063/1.1413960

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Single-walled carbon nanotubes (SWNTs) have been produced in high yield by the dc arc discharge technique under gravity-free conditions. Gravity-free conditions can reduce the convection flow of the buffer gas during the arc discharge, which results in the increase of high thermostatic volume around the arc flame. The yields of both the total soot and SWNTs in soot are significantly increased. Raman spectroscopy and transmission electron microscopy analyses reveal that the diameter distribution of SWNTs has shifted to a larger diameter region under the gravity-free condition. The annealing process in high-thermostatic atmosphere is a crucial experimental factor to selectively synthesize a certain diameter SWNT in high yield. (C) 2001 American Institute of Physics.

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页码：2967 / 2969

页数：3

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