Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Synthetic Strategies for High Performance Hydrocarbon Polymer Electrolyte Membranes (PEMs) for Fuel Cells

고성능 탄화수소계 고분자 전해질막의 합성 전략

  • Lee, So Young (Fuel Cell Research Center, Korea Institute of Science and Technology (KIST)) ;
  • Kim, Hyoung-Juhn (Fuel Cell Research Center, Korea Institute of Science and Technology (KIST)) ;
  • Nam, Sang Yong (Department of Materials Engineering and Convergence Technology, Engineering Research Institute, Gyeongsang National University) ;
  • Park, Chi Hoon (Department of Energy Engineering, Gyeongnam National University of Science and Technology (GNTECH))
  • 이소영 (한국과학기술연구원 연료전지센터) ;
  • 김형준 (한국과학기술연구원 연료전지센터) ;
  • 남상용 (경상대학교나노신소재융합공학과, 공학연구원) ;
  • 박치훈 (경남과학기술대학교 에너지공학과)
  • Received : 2016.02.23
  • Accepted : 2016.02.23
  • Published : 2016.02.29
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Abstract

Fuel cells are regarded as a representative energy source expected to replace fossil fuels particularly used in internal combustion engines. One of the most important components is polymer electrolyte membranes (PEMs) acting as a proton conducting barrier to prevent fuel gas crossover. Since water channels act as proton pathways through PEMs, many researchers have been focused on the 'good phase-separation of hydrophilic moiety' which ensures high water retention under low humidity enough to keep the water channel for good proton conduction. Here, we summarized the strategies which have been adopted to synthesize sulfonated PEMs having high proton conductivities even under low humidified conditions, and hope this review will be helpful to design high performance hydrocarbon PEMs.

연료전지는 화석연료, 특히 내연기관을 대체할 수 있는 가장 대표전인 에너지 기술이다. 가장 중요한 핵심 재료 중 하나로서 연료기체의 장벽 역할을 함과 동시에 수소이온전달 역할을 하는 고분자 전해질 막(PEM)이 있다. PEM 내부에서 수화 채널은 수소이온의 전달통로 역할을 하기 때문에, 많은 연구자들은 높은 함수율을 저가습 상태에서도 유지하여 우수한 수소이온 전달 능력을 보유할 수 있는 상분리현상을 통한 친수성 채널 형성에 대하여 초점을 맞추어 왔다. 본 총설에서는 이러한 낮은 가습조건에서도 높은 수소이온전도도를 갖는 술폰화 PEM들의 합성 전략에 대하여 논의 하여보고, 다른 연구자들의 고성능 탄화수소계 PEM의 설계에 도움을 주고자 하였다.

Keywords

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