Wednesday, February 02, 2011

US Patent 7879309 - Preparation of metal containing fullerenes

This patent from the Japan Science and Technology Agency teaches methods of peeling excess layers of carbon nanotubes to promote higher industrial yield of single walled nanotubes. Claim 1 reads:

1. A method of making a functional nanomaterial utilizing endothermic reactions, comprising

heat-treating a metal containing monolayer nanotube in a gas or liquid containing an endothermic reactant to cut or disintegrate the metal containing monolayer nanotube into metal containing fullerenes, thereby forming a metal containing fullerene.