| abstract |
Controlled and high-purity single-walled carbon nanotubes, particularly uniform single-walled carbon nanotubes in the range of 1.0 to 2.0 nm in diameter, which are useful as industrial materials, including high strength carbon-based wire rods, etc. It is about a method. The obtained single-walled carbon nanotubes have a diameter in the range of 1.0 to 2.0 nm, and the intensity ratio (IG / ID) of the G band and the D band in the Raman spectrum is 200 or more. Further, these single-walled carbon nanotubes and the like are synthesized by flow gas phase CVD using liquid saturated aliphatic hydrocarbons at room temperature as the first carbon source and unsaturated aliphatic hydrocarbons of gas at room temperature as the second carbon source.n n n n Single Layer Carbon Nanotube, Carbon Fiber Aggregate |