METHOD FOR PRODUCING ONE-WALL CARBON NANOTUBE, DEVICE FOR REALIZATION OF THE METHOD AND METHOD FOR PRODUCING COMPOSITE CARBON TARGETS Russian patent published in 2007 - IPC C01B31/02 B82B3/00 

FIELD: nanotechnology, possible use in chemical industry, electronics, medicine, mechanical engineering for producing plastics, fuel cell components, accumulators, super-capacitors, displays, electron emitters, prosthetics materials.

SUBSTANCE: in reaction pipe having an inlet window, graphitic cover-rod is mounted with composite graphitic target located in the channel of cover-rod. The target is prepared by mixing at room temperature of powders of graphite, nickel and yttrium oxide with atomic ratio Ni:Y equal to (4-10):1. Nickel and yttrium content in composite target - 1-10% at. Then the mixture is placed in the channel of graphitic cover-rod and packed. Protective diaphragm screen is installed between the window and the target. Laser evaporation of the target is performed by continuous CO₂ laser with power not less than 0,5 kWt with irradiation density not less than 1·10⁴ Wt/cm², with blow-off by constant flow of inert gas under atmospheric pressure. Resulting one-wall carbon nanotubes are gathered in collector, made in form of metallic substrates, positioned along the length of reaction pipe.

EFFECT: simplified manufacture of composite graphitic targets for laser ablation, ensured high quality and high nanotube output, substantially lowered labor, energy and time costs.

3 cl, 5 dwg