Abstract
Bundles of single-walled carbon nanotubes (SWNTs) with a narrower distribution of diameter have been produced by catalytic decomposition of methane at 1010 °C on a newly developed catalyst LaFeO 3. The SWNTs were characterized by means of transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM) and Raman spectroscopy. The diameter of the SWNTs is in the range of 0.8–1.8 nm. This result shows for the first time that SWNTs could be produced by catalytic decomposition of hydrocarbons without Al 2O 3, or SiO 2 or MgO support.
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