• 专利标题:   Producing platinum-based alloy catalyst, comprises e.g. forming carbon-based catalyst carrier solution by dispersing carbon-based catalyst carrier in polyol, and forming solution by adding platinum solution and transition metal precursor.
  • 专利号:   KR2022087778-A, KR2466103-B1
  • 发明人:   SUJIN G, PARK D C
  • 专利权人:   VINATECH CO LTD
  • 国际专利分类:   B01J023/42, B01J023/89, B01J037/00, B01J037/02, B01J037/06, B01J037/08, B01J037/16, H01M004/92
  • 专利详细信息:   KR2022087778-A 27 Jun 2022 B01J-037/02 202259 Pages: 13
  • 申请详细信息:   KR2022087778-A KR178153 18 Dec 2020
  • 优先权号:   KR178153

▎ 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 transition metal 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 transition metal 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 transition metal precursor 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 transition metal 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 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).