▎ 摘　　要

NOVELTY - Producing platinum-based alloy catalyst, comprises (a) preparing carbon-based catalyst carrier solution by dispersing the carbon-based catalyst carrier in polyol, (b) preparing a mixed solution by adding platinum solution and cobalt precursor powder to the carbon-based catalyst carrier solution and mixing at 40-100 degrees C, (c) adding pH adjusting agent to the mixed solution, (d) applying a temperature to the mixed solution and supporting on the carbon-based catalyst carrier, (e) washing and drying the mixed solution containing the platinum-based alloy supported on the carbon-based catalyst carrier, and (f) heating the dried platinum-based alloy catalyst at 400-500 degrees C. USE - The method is useful for producing platinum-based alloy catalyst. ADVANTAGE - The method easily and accurately controls amount of cobalt particles supported on the carbon-based catalyst carrier, and increases the alloying degree of the platinum-based alloy catalyst to improve the catalyst performance. DETAILED DESCRIPTION - Producing platinum-based alloy catalyst containing cobalt, comprises either: (a) preparing carbon-based catalyst carrier solution by dispersing the carbon-based catalyst carrier in polyol, (b) preparing a mixed solution by adding platinum solution and cobalt precursor powder to the carbon-based catalyst carrier solution and mixing at 40-100 degrees C, (c) adding pH adjusting agent to the mixed solution, (d) applying a temperature to the mixed solution and supporting on the carbon-based catalyst carrier, (e) washing and drying the mixed solution containing the platinum-based alloy supported on the carbon-based catalyst carrier, and (f) heating the dried platinum-based alloy catalyst at 400-500 degrees C; or (i) dispersing the carbon-based catalyst carrier in ethylene glycol to prepare a carbon-based catalyst carrier solution, (ii) preparing a mixed solution by adding a platinum solution and a cobalt precursor powder to the carbon-based catalyst carrier solution and mixing at 40-100 degrees C, (iii) adjusting the pH to 9-12 by adding 0.1-1M sodium hydroxide to the mixed solution, (iv) maintaining the sodium hydroxide-added mixture at 130-180 degrees C for 2-7 hours to reduce it to a platinum-based alloy containing cobalt and supporting it on the carbon-based catalyst carrier, (v) obtaining a platinum-based alloy catalyst by washing and drying the mixed solution containing the platinum-based alloy supported on the carbon-based catalyst carrier, and (vi) heating the dried platinum-based alloy catalyst at 400-500 degrees C. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating the method for producing platinum-based alloy catalyst (Drawing includes non-English language text).