Preparation of carbon nanotubes comprises decomposition of a carbon source by contacting in a fluidized bed reactor with multivalent transition metals supported on inorganic substrate having a defined surface area

摘要

Preparation of carbon nanotubes (I) comprises decomposition of a carbon source by contacting in a fluidized bed reactor at 500-1500[deg]C with multivalent transition metals at a null oxidation state and/or in the form of oxides (positive oxidation states) and recovery of (I), where the transition metals and/or their oxides are supported on a substrate with a specific Brunauer, Emmett and Teller surface of 70-300 m2>/g such as inorganic support An independent claim is included for (I) obtained by the process.