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A Temperature Window for the Synthesis of Single-Walled Carbon Nanotubes by Catalytic Chemical Vapor Deposition of CH4 over Mo2-Fe10/MgO Catalyst

Yu, Ouyang and Daoyong, Li and Weiran, Cao and Shaohua, Shi and Li, Chen (2009) A Temperature Window for the Synthesis of Single-Walled Carbon Nanotubes by Catalytic Chemical Vapor Deposition of CH4 over Mo2-Fe10/MgO Catalyst. Nanoscale Research Letters, 4 (6). pp. 574-577.

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Official URL: http://www.springerlink.com/content/241132u838w760...

Abstract

A temperature window for the synthesis of single-walled carbon nanotubes by catalytic chemical vapor deposition of CH4 over Mo2-Fe10/MgO catalyst has been studied by Raman spectroscopy. The results showed that when the temperature is lower than 750°C, there were few SWCNTs formed, and when the temperature is higher than 950°C, mass amorphous carbons were formed in the SWCNTs bundles due to the self-decomposition of CH4. The temperature window of SWCNTs efficient growth is between 800 and 950°C, and the optimum growth temperature is about 900°C. These results were supported by transmission electron microscope images of samples formed under different temperatures. The temperature window is important for large-scale production of SWCNTs by catalytic chemical vapor deposition method.

Item Type:Article
Subjects:Physical Science > Nano objects
Material Science > Nanochemistry
ID Code:5518
Deposited By:IoN
Deposited On:22 May 2009 17:06
Last Modified:22 May 2009 17:06

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