Plasma catalysis of carbon nanofibers
US6156256A · kind A · utility
88Cited by
19References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 13, 1998 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | May 13, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/843
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for forming carbon nanofibers by means of pyrolyzation with plasma in a reactor is disclosed. The process includes the steps of: providing, in a reactor, a first catalyst in the form of solid catalytic particles; applying a vacuum to the reactor to create a reduced pressure in the reactor; feeding a first mixture of gases including a carbon-based gas into the reactor; forming, from the carbon-based gas, a plasma containing carbon free-radical species; and forming, in the presence of the catalytic particles, carbon nanofibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.