New DC Arc Discharge Synthesis Method for Carbon Nanotubes Using Xylene Ferrocene as Floating Catalyst
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概要
- 論文の詳細を見る
A new synthesis method, a floating catalyst technique, was studied to produce carbon nanotubes in a DC arc discharge process. Xylene ferrocene was directly introduced into a DC arc chamber using a carrier gas. Experimental results showed that both multiwalled carbon nanotubes (MWNTs) and singlewalled carbon nanotubes (SWNTs) can be synthesized by this technique. The numbers of synthesized MWNTs and SWNTs varied depending on process conditions such as the flow rate of ferrocene, pressure, process current, and voltage. The yield of SWNTs was improved by increasing the flow rate of xylene ferrocene owing to the high density of the catalyst precursor used; however, it was reduced by decreasing the process current owing to the poor activation ability of the catalyst.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-04-15
著者
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Kim Hyeon
School Of Computer And Software Eng. Kumoh National University Of Technology
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Kim Hyeong
School Of Electrical And Electronics Engineering Chung-ang University
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Kim Hyeong
School of Material Science and Engineering, Seoul National University, Seoul 151-742, Korea
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Kim Hyeon
School of Material Science and Engineering, Seoul National University, Seoul 151-742, Korea
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