METHOD OF MANUFACTURING A GRAPHENE-CARBON NANOTUBE COMPOSITE USING A SPRAY PYROLYZING PROCESS, CAPABLE OF SHORTENING A TIME REQUIRED FOR SYNTHESIS AND OMITTING A WASHING AND THERMALLY TREATING PROCESS AFTER THE SYNTHESIS, AND THE GRAPHENE-CARBON NANOTUBE COMPOSITE BASED ON THE METHOD

摘要

PURPOSE: A method of manufacturing a graphene-carbon nanotube composite using a spray pyrolyzing process and the graphene-carbon nanotube composite based on the method are provided to increase the specific surface area and electric conductivity of the graphene-carbon nanotube composite by generating a three-dimensional network between graphene and carbon nanotubes.;CONSTITUTION: A method of manufacturing a graphene-carbon nanotube composite comprises the steps of: manufacturing a catalytic precursor solution containing graphene, a solvent, and a metal catalyst; spraying the catalytic precursor solution; and synthesizing a graphene-carbon nanotube composite by passing the sprayed droplet through a reaction furnace. The catalytic precursor solution is sprayed by a droplet generator using an ultrasonic nozzle. The catalytic precursor solution contains 0.5-2mg/ml of the graphene based on the solvent. The metal catalyst is selected among peroxin, ferric chloride, and cobalt nitrate. The catalytic precursor solution contains 0.01-0.5mol/l based on the solvent. The temperature of the reaction furnace is in the range of 600-1500°C.;COPYRIGHT KIPO 2013;[Reference numerals] (1) Gas flow meter; (2) Droplet generator; (3) Synthetic reaction high temperature furnace; (4) Synthetic material collector; (AA) Graphene