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...
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.
|Subjects:||Physical Science > Nano objects|
Material Science > Nanochemistry
|Deposited On:||22 May 2009 17:06|
|Last Modified:||22 May 2009 17:06|
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