SouthWest NanoTechnologies (SWeNT) CoMoCat® manufacturing process produces SWNT of high quality at very high selectivity, and with a remarkably narrow distribution of tube diameters. In this method, SWNT are grown by catalytic CO disproportionation (decomposition into C and carbon dioxide) at 700-950°C in flow of pure CO at a total pressure that typically ranges from 1 to 10 atm. The technology was invented by University of Oklahoma Professor Daniel Resasco, patented by the University and licensed to SWeNT.
Figure CoMoCat® Process as Presented in U.S. Patent 7,585,482.
The figure shows a series of process steps A-Q which represent a method of continuous catalytic production of carbon nanotubes. Southwest Nano Technologies Inc. (SWeNT) located in Norman, Oklahoma is commercializing this method. The process was developed at the University of Oklahoma by Prof. Daniel Resasco, who is SWeNT’s chief scientist, a company founder and directs the carbon nanotube research team that invented the CoMoCAT® catalytic process. The process is able to grow a significant amount of SWNT in a couple of hours, maintaining a high selectivity.
The process is protected by U.S. Patent 7,585,482.