METHOD OF PREPARING NITROGEN-CONTAINING CARBON MATERIAL WITH NANOTUBE STRUCTURE Russian patent published in 2010 - IPC C01B31/02 B82B3/00 

FIELD: chemistry.

SUBSTANCE: invention can be used in power engineering, electronics, chemical engineering, defense industry and medicine. The nitrogen-containing carbon material with nanotube structure is prepared through decomposition of a vapour-gas mixture containing the following in mol %: 2-6 N,C-containing compound, 0-98 Ar and 0-50 H₂. Decomposition is carried out at temperature of 700-800°C and pressure of 1 atm in the presence of a Au/Al₂O₃ catalyst with average Au particle size not greater than 20.0 nm and an iron compound. The iron compound used can be ferrocene (η⁵-C₅H₅)₂Fe; Fe(III) ferrocyanide, Fe₄[Fe(CN)₆]₃; Fe(III) acetylacetonate, (C₂H₇O₂)₃Fe; Fe (II) acetate, Fe(CO₂CH₃)₂; Fe(III) nitrate, Fe(NO₃)₃×9H₂O; Fe pentacarbonyl, [Fe(CO)₅]. The N,C-containing compound used can be pyridine, pyrazole, acetonitrile, dimethylformamide. The catalyst contains the following, in wt %: 0,1-5.0 Au, 0.1-0.5 Fe, the rest - Al₂O₃.

EFFECT: high output of carbon and high content of nitrogen in the obtained nanotubes.

5 cl, 6 ex, 2 tbl, 3 dwg