The effect of arc parameters on the growth of carbon nanotubes

被引：27
作者：
Lauerhaas, JM
Dai, JY
Setlur, AA
Chang, RPH
机构：
[1] Dept. of Mat. Sci. and Engineering, Northwestern University, Evanston
来源：
JOURNAL OF MATERIALS RESEARCH | 1997年 / 12卷 / 06期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1557/JMR.1997.0210
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of starting carbon material on the generation of carbon nanotubes is investigated. Comparisons are made between oriented graphite, randomly oriented graphite, carbon black, and a polycyclic aromatic hydrocarbon as carbon sources in helium and hydrogen arcs. Transmission electron microscopy investigation of the redeposited rod formed on the cathode and the soot from the chamber walls provides evidence for the building blocks that lead to the nanostructures formed. It is postulated that polycyclic aromatic hydrocarbons are precursors for carbon nanotube growth in a hydrogen are. While, in the case of helium, low molecular weight carbon ions and molecules have been previously hypothesized by others to be the building blocks for nanotube growth.
引用
收藏
页码：1536 / 1544
页数：9
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