CARBON NANOSTRUCTURES AND METHOD FOR OBTAINING NANOTUBES, NANO FIBERS AND NANOSTRUCTURES BASED ON CARBON

摘要

The continuous method of producing nanotubes, nanofibres and carbon-based nanostructures, includes the following steps: plasma generation using electricity; the introduction of a carbon precursor, and / or one or more catalysts, and / or a plasma carrier gas into the reaction zone of a hermetic vessel resistant to high temperatures, optionally having a thermally insulating lining; evaporating the carbon precursor in the reaction zone at a very high temperature, preferably 4000 ° C and higher; the direction of the plasma carrier gas, the vaporized carbon precursor and the catalyst through a nozzle whose diameter narrows in the direction of flow of the plasma gas; the direction of the plasma carrier gas, the vaporized carbon precursor and the catalyst to the hardening zone to form nuclei, their growth and hardening operations under flow conditions generated by aerodynamic and electromagnetic forces so that significant recycling of the feedstock or products from the hardening zone to the reaction zone does not occur; regulation of the gas temperature in the quenching zone between approximately 4000 ° C in the upper part of this zone and approximately 50 ° C in the lower part of this zone and the regulation of the rate of quenching between 10 and 10K / s; hardening and separation of nanotubes, nanofibres and other carbon-based nanostructures from the hardening zone; separation of nanotubes, nanofibers and carbon-based nanostructures from other reaction products.