Back to results
US 2019/0292058 A1Published application
Method of manufacturing carbon nanotubes using electric arc discharge
AssigneeIndustry-Academia Cooperation Group of Sejong University
InventorsNae Sung LEE, Tae Hun SHIN
Life of this patent
Estimating the term…
Abstract
Disclosed is a method for producing CNTs by an electric arc discharge method. The synthesis gas for the arc discharge includes nitrogen and oxygen gases. The oxygen gas in the synthesis gas is converted to reactive oxygen species by the arc discharge and chemically reacts with amorphous carbon. Accordingly, the formation of amorphous carbon is suppressed when CNTs are formed on the cathode, and thus, high crystallinity of CNTs can be secured.
Claims11
A method of manufacturing CNTs, comprising:
- supplying a synthesis gas into a chamber in which a cathode and an anode are placed apart;
- and
- generating an electric arc discharge by applying a voltage between the cathode and an anode to synthesize the CNTs on the cathode,
- wherein the synthesis gas includes N2 gas and O2 gas.
1 more element
Dependencies are inferred from the claim text.