skip to contents

Archive

  • Title(Kor)
    과산화수소 분해반응을 이용한 Pt계 촉매의 인산피독 특성 평가 방법
  • Title(Eng)
    The Analysis Method for Evaluation of Phosphoric Acid Poisioning of Pt Based Catalyst by Using Hydrogen Peroxide Decomposition Reaction
  • Keyword
    Phosphoric acid(인산), Platinum catalyst(백금촉매), Hydrogen peroxide(과산화수소), Ferroin indicator(페로인 지시약), PEMFC(고분자전해질연료전지)
  • Author(Kor)
    박정진1⋅양승원1⋅정용진2,†⋅권용재1,†
  • Author(Eng)
    JEONGJIN PARK1, SEUNGWON YANG1, YONGJIN CHUNG2,† YONGCHAI KWON1,†
  • Date
    2017-12
  • Attach file
  • Page
    Page. 669-674
  • Abstract(Eng)
  • In this study, the novel electrochemical and colorimetric analysis methods are suggested to estimate the degree of phosphoric acid ion poisoning on Pt based catalyst surface and to confirm the possibility of replacing the expensive and long time consumed conventional methods. As the ways, the electrochemical half cell tests such as cyclic voltammetry (CV) and linear sweep voltammetry (LSV) are used and the change in chemical behavior by absorption of the phosphoric acid ion on Pt based catalyst surface and hydrogen peroxide decomposition reaction are successfully recognized by colorimetric measurements. Conclusively, it is proved that the new methods show superior sensitivity for identifying the degree of phosphoric acid poisoned on Pt based catalyst.