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Journal of Nanomaterials
Volume 2007, Article ID 84540, 4 pages
http://dx.doi.org/10.1155/2007/84540
Research Article

Catalyst Composition and Content Effects on the Synthesis of Single-Walled Carbon Nanotubes by Arc Discharge

1State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
2School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China
3School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
4School of Science, Xi'an Jiaotong University, Xi'an 710049, China

Received 15 January 2007; Accepted 16 March 2007

Academic Editor: Rakesh K. Joshi

Copyright © 2007 Tingkai Zhao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Single-walled carbon nanotubes (SWCNTs) were prepared by a modified arc discharging furnace using Fe-Ni-Mg powders as catalyst at 600C. The effects of catalyst composition and content on the production rate and purity of SWCNTs are investigated in this paper. When the Fe-Ni-Mg catalyst composition is 2: 1: 2 wt% and the catalyst content is 5 wt%, the experimental results indicate that the production of SWCNTs is 12 grams per hour, and the purity and diameter of SWCNTs are 70% and 1.22 1.38 nm, respectively. The results indicate that the cooperative function of catalyst composition and content plays an important role in the production of SWCNTs. The aim of this work is to control the production process of SWCNTs efficiently.