Continuous method and apparatus for functionalizing carbon nanotube
US9051179B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2009 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Apr 16, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/54
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
A continuous method for functionalizing a carbon nanotube includes preparing a carbon nanotube solution containing a nitro compound represented by chemical formula 1 as R—(NOx)y wherein R is an alkyl group of C1 to C7 or an aryl group of C6 to C20 and x and y are integers of 1 to 3 independently, a carbon nanotube and a solvent. An oxidizer for forming a nitric acid selected from the group consisting of the carbon nanotube, oxygen, air, ozone, hydrogen peroxide and a mixture thereof is mixed with the carbon nanotube solution at a front end of a functionalizing reactor and the carbon nanotube mixture is fed into the functionalizing reactor. A functionalized carbon nanotube is prepared by treating the carbon nanotube mixture fed into the functionalizing reactor under a subcritical water or supercritical water condition of 50 to 400 atm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.