Sponge of purified carbon nanotubes

被引:32
作者
Ando, Y [1 ]
Zhao, XL [1 ]
Ohkohchi, M [1 ]
机构
[1] Meijo Univ, Dept Phys, Tempaku Ku, Nagoya, Aichi 468, Japan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1998年 / 37卷 / 1AB期
关键词
multiwalled carbon nanotubes; thermal purification; SEM; hydrogen arc; infrared radiation heating;
D O I
10.1143/JJAP.37.L61
中图分类号
O59 [应用物理学];
学科分类号
摘要
We first used an infrared radiation heating system in air to purify multiwalled carbon nanotubes (MWNTs) containing unnecessary carbon nanoparticles. The raw MWNTs were obtained in the cathode deposit when a graphite electrode was evaporated in hydrogen gas by DC are discharge. The purification reached the depth of 0.1 mm from the deposit surface, which revealed highly oriented MWNTs vertical to the cathode surface. Using this methode, we can easily obtain a spongy bulk of highly oriented and purified MWNTs, with the size on the order of 10 mm(2) in surface area and 0.1 mm in thickness.
引用
收藏
页码:L61 / L63
页数:3
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