METHOD OF CARBON NANOTUBES PRODUCTION BY METHOD OF CHEMICAL VAPOR DEPOSITION Russian patent published in 2017 - IPC C01B32/162 B82B3/00 B82Y40/00 

FIELD: nanotechnology.

SUBSTANCE: substrate is applied to the reactor, it has a nickel and/or cobalt and/or iron compound is applied, the compound is prepared by mixing and reacting the formates of these metals with a nitrogen-containing compound, such as a monodentate ligand from the range comprising ammonia and/or methylamine, and/or monoethanolamine in an amount of 18-42 g⋅E at 1 g⋅E of a metal formate or a bidentate ligand from a series comprising hydrazine and/or ethylenediamine and/or diethanolamine in an amount of 9-21 g⋅E at 1 g⋅E of metal formate. The substrate is a fabric of mineral or carbon fibers, for example a carbon-carbon composite material with a porosity of 2-20%; of a metal, for example, titanium, copper, tantalum, the surface of which has been pretreated with plasma electrochemical or hydrothermal oxidation; of carbon-ceramic composite material with a porosity of 0.5-10%. The substrate may have a complex surface geometry. In the reactor, the noted compound decomposes at high temperature to form a catalytically active particle shape without the use of a reducing gas medium. Carbon nanotubes are synthesised on the resulting particles with the subsequent supply of carbon compounds through a substrate serving to orient carbon nanotubes.

EFFECT: invention makes it possible to synthesise carbon nanotubes on substrates of any composition and geometry, to increase the specific yield of nanotubes.

8 cl, 3 dwg, 1 tbl, 8 ex