METHOD TO PRODUCE CARBON NANOSTRUCTURES, CATALYST FOR ITS IMPLEMENTATION AND METHOD TO PRODUCE CATALYST Russian patent published in 2011 - IPC C01B31/00 B82B3/00 

FIELD: nanotechnologies.

SUBSTANCE: invention relates to the field of nanotechnology and may be used to create composite materials, adsorbents, catalysts, materials for storage of gases. At first catalyst is produced to synthesise carbon nanotubes. Aluminium-containing carrier is impregnated with salts of catalytically active metals, dried, tempered and cooled down. Aluminium-containing carrier is represented by crystalline modifications of aluminium oxide. After cooling, catalyst surface is treated with laser monochrome electromagnetic radiation in flow of air or inert gas. Nanotubes are synthesised in reactor at metal-containing catalyst at temperature of pyrolysis in process of catalytic decay of carbon-containing gas. Carbon-containing gas is represented by steam and gas mixture of hydrogen, aromatic compounds, saturated and/or unsaturated hydrocarbons. Steam and gas mixture is supplied into reactor at linear speed from 50 to 350 mm/s. Temperature of pyrolysis is maintained within the limits of 650-950 °C.

EFFECT: invention makes it possible to produce carbon nanotubes of high extent of purity and quality.

8 cl, 2 tbl, 22 ex, 1 dwg