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Effects of Nafion Contents on the Performance of MEAs Prepared by Decal-Transfer Method

Nafion 함량이 데칼전사기법을 통해 제작된 고분자 전해질 연료전지의 MEA 성능에 미치는 영향

  • Kim, Gyeong-Hee (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • Cho, Eun-Ae (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • Han, Jong-Hee (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • Kim, Sung-Hyun (Dept. of Chemical & Biological Engineering, Korea University) ;
  • Eom, Kwang-Sup (Fuel Cell Research Center, Korea Institute of Science and Technology)
  • 김경희 (한국과학기술연구원 연료전지연구센터) ;
  • 조은애 (한국과학기술연구원 연료전지연구센터) ;
  • 한종희 (한국과학기술연구원 연료전지연구센터) ;
  • 김성현 (고려대학교 화공생명공학과) ;
  • 엄광섭 (한국과학기술연구원 연료전지연구센터)
  • Received : 2012.04.10
  • Accepted : 2012.04.27
  • Published : 2012.04.30

Abstract

Nafion ionomer located in electrode helps to increase the platinum utilization and proton conductivity. To achieve higher performance in PEMFCs, it is important an optimum Nafion content in the electrode. As the platinum loading and fabricated method depend on the optimum Nafion content. In this study, we have examined the interrelationship between platinum loading and Nafion content fabricated by decal transfer method. For electrodes with 0.25 and 0.4 mg/$cm^2$ Pt loading, best performance was obtained at 25 wt.% Nafion ionomer loading. It is also found that MEA with 0.25 mg/$cm^2$ Pt, the optimum Nafion content appears differently at low and high current density.

Acknowledgement

Supported by : 한국과학기술연구원

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