Thermal-catalytic synthesis of carbon nanotubes in a reactor by a pseudo-boiling layer
Keywords:
сarbon nanotubes, pseudo-boiling layer, catalyst, acetyleneAbstract
The results are presented, and a setup for the synthesis of carbon nanotubes in a fluidized bed reactor is developed and created. The optimal conditions for the synthesis of carbon nanotubes from acetylene have been determined. New types of Ni/NiO catalysts have been synthesized by the method of liquid-phase combustion on the surface of Al2O3 spheres. It was established that the optimal conditions for the synthesis of carbon nanotubes are the nitrogen consumption rate of 948 cm3/min, acetylene consumption of 95 cm3/min, synthesis temperature of 780 °C, and synthesis time of 10-15 min. Al2O3 spheres impregnated with a solution of Fe(C5H5)2 possess the best indicators of catalytic activity. The obtained carbon nanotubes with diameters from 88 to 122 nm.
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