FIELD: chemistry.
SUBSTANCE: carbon nanotubes are obtained by bringing a mixture of methane and hydrogen into contact with a catalyst. The process is carried out at high temperature and catalyst and gas mixture contact time equal to 10-60 minutes. The catalyst used is magnesium cobaltate Mg[CoO2]2. The catalyst and mixture of methane and hydrogen with methane content 80-95 vol. % and hydrogen content 5-20 vol. % are brought into contact at temperature 650-750°C.
EFFECT: invention enables to obtain straight carbon nanotubes, provides high output of carbon nanotubes per unit mass of the catalyst with high efficiency, enables to obtain a product which is multi-layered and has homogeneity of fractons on the diameter of the tubes.
1 dwg, 1 tbl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| NANOCOMPOSITE BASED ON NITROGEN-CONTAINING CARBON NANOTUBES WITH ENCAPSULATED COBALT AND NICKEL PARTICLES AND METHOD OF OBTAINING THEREOF | 2010 |
|
RU2546154C1 |
| METHOD OF PREPARING CARBON NANOTUBES | 1998 |
|
RU2146648C1 |
| CARBON MATERIAL MANUFACTURING PROCESS | 2004 |
|
RU2258031C1 |
| CARBON NANOFIBRE AND METHOD OF OBTAINING OF MULTIWALL CARBON NANOTUBES | 2014 |
|
RU2567628C1 |
| METHOD OF PRODUCTION OF THE CARBONIC NANOTUBES WITH THE INCAPCULATED PARTICLES OF NICKEL AND COBALT AND THE INSTALLATION FOR THE SYNTHESIS OF THE MATERIALS BASED ON THE CARBONIC NANOTUBES AND NANOPARTICLES OF NICKEL AND COBALT | 2005 |
|
RU2310601C2 |
| METAL-OXIDE CATALYST FOR GROWING BUNDLES OF CARBON NANOTUBES FROM GASEOUS PHASE | 2010 |
|
RU2427423C1 |
| METHOD FOR PRODUCING MESOPOROUS CARBON MATERIALS | 2020 |
|
RU2755122C1 |
| METHOD OF PRODUCING HYDROGEN AND CARBON NANOFIBRES FROM HYDROCARBON GAS | 2008 |
|
RU2414418C2 |
| METHOD OF PREPARING SOLID-PHASE NANOSTRUCTURIZING MATERIALS | 1999 |
|
RU2179526C2 |
| METHOD OF CLEANING MULTILAYER CARBON TUBES | 2009 |
|
RU2430879C2 |
