| 摘要 |
PURPOSE: A metal nanocatalyst for fuel cells is provided to prevent ignition by not using an organic solvent, to exclude solvent collecting and washing, and to provide a high efficiency catalyst in a low cost. CONSTITUTION: A manufacturing method of a metal nanocatalyst for fuel cells comprises: a step of manufacturing carbon black slurry by mixing 1.0-1.5 parts by weight of carbon black, 0.5-1.0 parts by weight of polymer electrolyte, and 0.1-0.3 parts by weight of surfactant based on 100.0 parts by weight of distilled water; a step of forming a microporous layer by coating and drying the obtained carbon black slurry on a gas diffusion layer; and a step of injecting a metal precursor to a reactor, injecting the gas diffusion layer with the microporous layer, and maintaining the state at 170-200 vacuum condition for 5 minutes-1 hour. [Reference numerals] (AA) Distilled water + Nafion + Carbon black + surfactant; (BB) Carbon black slurry; (CC) Ultrasound wave stirring; (DD) Carbon black slurry coated gas diffusing layer; (EE) Air; (FF) Nitrogen; (GG) Metal precursor; (HH) Nafion polymer; (II) Carbon black; (JJ) Oil heating in a double boiler; (KK) Catalytic reduction process; (LL) Carbon felt surface; (MM) Spray coating; (NN) Carbon black slurry coating surface; (OO) Nanocatalyst manufactured by the reduction of the metal precursor |
