DEVICE FOR OBTAINING CARBON NANOTUBES Russian patent published in 2013 - IPC C01B31/02 B82B3/00 B82Y40/00 

FIELD: nanotechnology.

SUBSTANCE: invention relates to nanotechnology. The device for obtaining carbon nanotubes comprises a sealed chamber 3 filled with inert gas, a carbon-contained anode 1 made with the ability to move in the longitudinal direction, and the carbon-contained cathode 2 located coaxially. On the surface of the anode 1 the sensors of current intensity 4 and temperature 5 are installed. The first circuit is formed of the current intensity sensor 4, a comparing unit 6 of current intensity, and control device 7 sending the control action to the executive unit 8 to remove the anode 1 to the position that meets the specified current intensity. The second loop is formed by sensors of current intensity 4 and temperature 5 connected to the decision device 9, a comparing unit 10 of speed of the anode burnout connected to the control device 7 which also adjusts the speed of the anode 1 feeding.

EFFECT: due to the optimal distance between the electrodes the optimum conditions of synthesis are provided, which enables to increase the yield of carbon nanotubes and to avoid interruption of the arc.

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