• 专利标题:   Evaluation of oxygen reduction activity of carbon-based catalyst used in electrode catalyst, involves arranging catalyst on semiconductor surface, immersing in etching solution to form etching traces, and evaluating from depth of traces.
  • 专利号:   JP2021034315-A
  • 发明人:   ARIMA K
  • 专利权人:   UNIV OSAKA
  • 国际专利分类:   B01J021/18, B01J027/24, B01J035/02, C01B032/182, C01B032/198, H01M004/86, H01M004/90, H01M008/10
  • 专利详细信息:   JP2021034315-A 01 Mar 2021 H01M-004/86 202122 Pages: 10 Japanese
  • 申请详细信息:   JP2021034315-A JP156114 28 Aug 2019
  • 优先权号:   JP156114

▎ 摘  要

NOVELTY - Evaluation of oxygen reduction activity of carbon-based catalyst involves locally arranging (i) a to-be-evaluated carbon-based catalyst on a surface of a semiconductor, immersing (ii) the semiconductor comprising the carbon-based catalyst on the surface in an etching solution to form local etching traces on the semiconductor surface, and evaluating (iii) the oxygen reduction activity from the depth of the local etching traces. USE - Evaluation of oxygen reduction activity of carbon-based catalyst used as platinum alternate in electrode catalyst for forming electrode e.g. negative electrode used for polymer electrolyte fuel cell for clean next-generation energy source including domestic power source and mobile power source such as motor vehicle, dye-sensitized solar cell and metal-air secondary battery. ADVANTAGE - The method enables simple and quantitative evaluation of oxygen reduction activity of carbon-based catalyst by easily visualizing catalytic activity (oxygen reduction activity). DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view explaining the evaluation of oxygen reduction activity of carbon-based catalyst. (Drawing includes non-English language text) Carbon nanomaterials (1,2,3)