Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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The Analysis Method for Evaluation of Phosphoric Acid Poisioning of Pt Based Catalyst by Using Hydrogen Peroxide Decomposition Reaction

과산화수소 분해반응을 이용한 Pt계 촉매의 인산피독 특성 평가 방법

  • PARK, JEONGJIN (Graduate School of Energy and Environment, Seoul National University of Science and Technology) ;
  • YANG, SEUNGWON (Graduate School of Energy and Environment, Seoul National University of Science and Technology) ;
  • CHUNG, ONGJIN (Department of Chemical and Biological Engineering, Korea National University of Transportation) ;
  • KWON, YONGCHAI (Graduate School of Energy and Environment, Seoul National University of Science and Technology)
  • 박정진 (서울과학기술대학교 에너지환경대학원) ;
  • 양승원 (서울과학기술대학교 에너지환경대학원) ;
  • 정용진 (한국교통대학교 화공신소재고분자공학부 화공생물공학전공) ;
  • 권용재 (서울과학기술대학교 에너지환경대학원)
  • Received : 2017.11.11
  • Accepted : 2017.12.29
  • Published : 2017.12.31
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Abstract

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.

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References

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