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

  • 제34권2호
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  • Pages.178-186
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  • 2023
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
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PtCo/C 촉매를 사용한 PEMFC MEA의 활성화 프로토콜 비교

The Comparison of Activation Protocols for PEMFC MEA with PtCo/C Catalyst

  • 이기성 (광주과학기술원 융합기술원 에너지융합대학원) ;
  • 정현승 (광주과학기술원 융합기술원 에너지융합대학원) ;
  • 현진호 (광주과학기술원 융합기술원 에너지융합대학원) ;
  • 박찬호 (광주과학기술원 융합기술원 에너지융합대학원)
  • GISEONG LEE (Graduate School of Energy Convergence, Institute of Integrated Technology, Gwangju Institute of Science and Technology) ;
  • HYEON SEUNG JUNG (Graduate School of Energy Convergence, Institute of Integrated Technology, Gwangju Institute of Science and Technology) ;
  • JINHO HYUN (Graduate School of Energy Convergence, Institute of Integrated Technology, Gwangju Institute of Science and Technology) ;
  • CHANHO PAK (Graduate School of Energy Convergence, Institute of Integrated Technology, Gwangju Institute of Science and Technology)
  • 투고 : 2022.12.28
  • 심사 : 2023.04.05
  • 발행 : 2023.04.28
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⟨ 이전 논문 다음 논문 ⟩

초록

Three activation methods (constant voltage, current cycling, and hydrogen pumping) were applied to investigate the effects on the performance of the membrane electrode assembly (MEA) loaded with PtCo/C catalyst. The current cycling protocol took the shortest time to activate the MEA, while the performance after activation was the worst among the all activation methods. The constant voltage method took a moderate activation time and exhibited the best performance after activation. The hydrogen pumping protocol took the longest time to activate the MEA with moderate performance after activation. According to the distribution of relaxation time analysis, the improved performance after the activation mainly comes from the decrease of charge transfer resistance rather than the ionic resistance in the cathode catalyst layer, which suggests that the existence of water on the electrode is the key factor for activation.

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과제정보

본 논문은 현대자동차의 연구개발과제에서 일부 지원을 받아 수행된 연구 결과입니다.

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