- Conference date: 15-18 Jan 2001
- Location: Kamakura (Japan)
High-quality single-walled carbon nanotubes (SWNTs) have been produced by DC arc discharge in hydrogen ambience. By using Fe 1% catalyst a large amount of SWNTs are produced in pure gas. Other transition metals of iron group and its combination are also used as catalyst for preparing SWNTs by adding 1% gas in Tri-metal catalyst, Fe(0.25%)-Ni(0.9%)-Co(0.9%), is found to be most effective for high yield of SWNTs. The SWNTs diameters are fairly thick ∼1.4–4 nm, and some double-walled carbon nanotubes also exist with them.
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