CVD synthesis and purification of single-walled carbon nanotubes on aerogel-supported catalyst
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- Zheng, B., Li, Y. & Liu, J. Appl Phys A (2002) 74: 345. doi:10.1007/s003390201275
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Single-walled carbon nanotubes (SWNTs) were synthesized by disproportionation of carbon monoxide on an aerogel-supported Fe/Mo catalyst. A simple acidic treatment followed by an oxidation process produced a high purity (>99%) of SWNTs. The nanotubes obtained are bundled SWNTs and free of amorphous-carbon coating. Several factors that affect the yield and the quality of the SWNTs were also studied. This method shows great promise for large-scale production of SWNTs.