APPARATUS FOR SYNTHESIS OF CARBON NANOTUBES FROM HYDROCARBON GAS Russian patent published in 2012 - IPC C01B31/02 B82B3/00 B82Y40/00 

FIELD: transportation.

SUBSTANCE: invention relates to equipment for producing carbon nanotubes using electromagnetic radiation. The apparatus has a resonance electromagnetic field concentrator in form of a metal pin 1 and an oppositely lying diaphragm 2 with a hole 3, behind which there is a channel for collecting reaction products 4. Hydrocarbon gas enters the discharge region between the pin 1 and the diaphragm 2 and under the effect of high temperature and electron bombardment disintegrates into carbon and hydrogen. Immediately behind the diaphragm 2 there is a folding metal plate 5 with a recoil spring 6 which covers the hole 3 in the diaphragm 2, on which a solid carbon deposit forms. The hole 3 is in form of a cylindrical channel which is coaxial with the metal pin 1, installed with possibility of axial displacement and free movement into the channel of the diaphragm 2 to force the product into the channel for collecting reaction products 4, which is in form of an expanding cavity. The surface of the plate 5 is cleaned by the end of the pin 1. When the pin 1 returns into the initial position, the plate occupies the initial position under the action of the spring 6.

EFFECT: apparatus provides conditions for preferred synthesis of nanotubes with diameter of 10-20 nm with concentration in the overall product of not less than 80%, high efficiency and easy collection of the end product.

3 cl, 3 dwg