Patent ID: 8317983
Filing Date: 2012-11-27
Classification: B82Y,C01B,C23C

Abstract:
1. A method for the production of single-walled carbon nanotubes comprising: A) impacting a suitable carbon or carbon/catalyst target with a laser beam generated by a laser producing an output of at least about 50 Watts/cm 2 at a repetition rate of about 15 MHz in a heated, inert environment while said target and said laser beam move relative to one another to produce a single-walled carbon nanotube plume; B) removing said plume from the area where said laser beam impacts said target by side pumping a high momentum focused flow of heated inert gas against said plume and deflecting said plume from the area where said laser beam impacts said target; and C) collecting said single-walled carbon nanotubes, wherein said high momentum, side pumped flow of heated inert gas is provided by a mechanism comprising a gas supply line tortuously wound inside of said operating chamber to permit heating of said inert gas in said operating chamber.