METHOD OF CARBON NANOTUBE PRODUCTION AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2008 - IPC C01B31/02 B82B3/00 

FIELD: technological processes.

SUBSTANCE: device for production of carbon nanotubes by method of arc discharge includes chamber 5, filled with inertial gas, carbon-containing cathode 1 and anode 2, installed axially symmetrically with the possibility of displacement in relation to each other in longitudinal direction, and heating element 3. Anode 2 is separated into working and supplying sections. Supplying section of anode 2 is arranged with axially symmetrical blind channel 6, at the end of which several radial holes 7 are provided for inertial gas flow into chamber 5 from the side of working section. On the other side supplying section is connected with pipeline 4 to device of inertial gas cooling. Working section of anode 2 is installed with gap inside heating element 3, arranged in the form of annular inductor of high frequency currents. Carbon nanotubes are produced in arc discharge between cathode 1 and anode 2. Simultaneously with heating of working section of anode 2 by current of high frequency up to 800-2000°C, inertial gas is extracted into cooling device, then it is supplied back to channel 6 for cooling of supplying section of anode 2.

EFFECT: increase of carbon nanotube content in cathode deposit by expansion and regulation of temperature effect zones.

2 cl, 5 dwg