Tuesday, July 17, 2012

US Patent 8221716 - CNT synthesis using ultrasonic waves


Conventional carbon nanotube production processes require high temperatures and low pressure environments and produce unwanted byproducts. This patent from Samsung teaches a new way to manufacture single walled carbon nanotubes at room temperature and atmospheric pressure while reducing unwanted carbon byproducts. Claim 1 reads:

1. A method of synthesizing carbon nanotubes, the method comprising:

forming a solution including an organometallic compound containing catalyst particles and a solvent; adding at least one support to the solution; and

applying radiation to the solution to which the at least one support is added, after adding the at least one support to the solution,

wherein the carbon nanotubes are synthesized on a surface of the at least one support by applying the radiation to the solution and wherein the radiation includes one of ultrasonic and electromagnetic waves.