In:
Nanoscale Research Letters, Springer Science and Business Media LLC, Vol. 4, No. 6 ( 2009-06)
Abstract:
A temperature window for the synthesis of single-walled carbon nanotubes by catalytic chemical vapor deposition of CH 4 over Mo 2 -Fe 10 /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 CH 4 . 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.
Type of Medium:
Online Resource
ISSN:
1556-276X
DOI:
10.1007/s11671-009-9284-z
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2009
detail.hit.zdb_id:
2253244-4
detail.hit.zdb_id:
3149496-1
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