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  • Title(Kor)
    알코올계 촉매 슬러리를 활용한 바 코팅으로 제조된 PTFE 전극의 형성 및 특성 조사
  • Title(Eng)
    Characterization of PTFE Electrode Made by Bar-Coating Method Using Alcohol-Based Catalyst Slurry
  • Keyword
    High temperature polymer electrolyte membrane fuel cell(고온 고분자 전해질막 연료전지), Alcohol solvent(알코올계 용매), Polytetrafluoroethylene(폴리테트라플루오로에틸렌), Bar coating method(바 코팅 방법), Binder dispersion(바인더 분산)
  • Author(Kor)
    정현승⋅김도형⋅박찬호†
  • Author(Eng)
    HYEON SEUNG JUNG, DO-HYUNG KIM, CHANHO PAK†
  • Date
    2020-06
  • Attach file
  • Page
    Page. 276~283
  • Abstract(Eng)
  • Alcohol-based solvents including ethanol (EtOH) and tert-butyl alcohol (TBA) are investigated instead of isopropanol (IPA), which is a common solvent for polytetrafluoroethylene (PTFE), as an alternative solvent for preparing the catalyst slurry with PTFE binder. As a result, the performance at 0.2 A/cm2 from the single cells from using catalyst slurries based on EtOH and TBA showed very similar value to that from the slurry using IPA, which implies the EtOH and TBA can be used as a solvent for the catalyst slurry. It is also confirmed by the very close values of the total resistance of the membrane electrode assemblies from the slurries using different solvents. In the energy dispersive spectrometry (EDS) image, the shape of crack and dispersion of PTFE are changed according to the vapor pressure of the solvent.