METHOD OF OBTAINING SINGLE-WALL CARBON NANOTUBES Russian patent published in 2012 - IPC C01B31/02 B82B3/00 B82Y30/00 

FIELD: chemistry.

SUBSTANCE: invention can be used when obtaining filler for structural and functional materials. A reaction mixture containing carbon and catalyst precursors in the current of a carrier gas is fed into the reaction zone of a reactor. The carbon precursor used is carbon-containing compounds selected from: methane, ethane, propane, benzene, toluene, xylenes, methanol, ethanol, propanol, isopropanol, ethylene, propylene, acetylene or mixture thereof. The catalyst precursor used is transition metal compounds selected from: dicyclopentadienyl compounds of transition metals of general formula (h-C₅H₅)₂M, carbonyls of transition metals, or mixtures thereof. Synthesis of single-wall carbon nanotubes is carried out in the presence of growth activators in form of water vapour and/or thiophene, or homologues thereof at temperature 1050-1200 °C. Temperature of the reaction mixture at the input of the reaction zone is kept higher than the evaporation temperature of the catalyst precursor but lower than decomposition temperature thereof.

EFFECT: high output and quality of single-wall carbon nanotubes.

3 cl, 1 tbl, 2 ex