Fabrication method of porous tubes composed of nanowire-microparticle hybrid structure and the porous tubular structure thereof

摘要

PURPOSE: A porous tube constructed of a nanowire-micro particle hybrid structure and a synthesis method thereof are provided to form a nanostructure having a simple and homogenous structure compared to a conventional structure on a support as a growth of nanowire can be homogenous on the surface of the porous tube regardless of the shape and size of the porous tube. CONSTITUTION: A synthesis method of a porous tube formed of a nanowire-microparticle hybrid structure comprises the steps of: pressing paste formed of micro powder including a catalyst component into a porous tube; drying and sintering the pressed porous tube; locating the dried and sintered porous tube in the reaction apparatus and removing impurities from a reaction apparatus by reducing the degree of vacuum inside the reaction apparatus; increasing a temperature in an impurity reactor up to a synthesis temperature while injecting transfer gas into the impurity reactor; synthesizing nanowires on the surface of the porous tube by supplying reaction gas into the reaction apparatus of which the temperature reached the synthesis temperature; and cooling the reaction apparatus to room temperature while supplying the transfer gas.