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DOI QR Code

고분자 전해질 막 연료전지 응용을 위한 탄화수소계 기반 가교 전해질 막의 연구동향

Research of Cross-linked Hydrocarbon based Polymer Electrolyte Membranes for Polymer Electrolyte Membrane Fuel Cell Applications

  • 고한솔 (경상대학교 나노신소재융합공학과) ;
  • 김미정 (경상대학교 나노신소재융합공학과) ;
  • 남상용 (경상대학교 나노신소재융합공학과) ;
  • 김기현 (경상대학교 나노신소재융합공학과)
  • Ko, Hansol (Department of Materials Engineering and Convergence Technology, Gyeongsang National University) ;
  • Kim, Mijeong (Department of Materials Engineering and Convergence Technology, Gyeongsang National University) ;
  • Nam, Sang Yong (Department of Materials Engineering and Convergence Technology, Gyeongsang National University) ;
  • Kim, Kihyun (Department of Materials Engineering and Convergence Technology, Gyeongsang National University)
  • 투고 : 2020.12.17
  • 심사 : 2020.12.22
  • 발행 : 2020.12.31

초록

고분자 전해질 막 연료전지(polymer electrolyte membrane fuel cell, PEMFC)는 환경오염물질 배출이 없는 친환경 에너지 변환 장치로 주목을 받고 있다. PEMFC의 구성요소 중 고분자 전해질 막(polymer electrolyte membrane, PEM)은 음극에서 발생되는 수소이온을 양극으로 전달하는 역할과 동시에 분리막으로써 연료의 투과를 차단하는 역할을 수행하는 핵심 소재이다. 대표적으로 Nafion®과 같은 과불소화계 고분자 전해질 막이 상용화 되어있지만 높은 단가 및 분해 시 환경오염물질이 배출되는 단점이 존재하여, 이를 대체할 탄화수소계 고분자를 활용한 전해질 막 개발에 관한 연구들이 수행되고 있다. 높은 수소이온 전도도를 가지며 동시에 우수한 물리·화학적 안정성을 갖는 탄화수소계 고분자 기반 전해질 막을 개발하기 위해 가교 구조가 도입된 전해질 막을 개발하는 연구들이 보고되고 있다. 본 총설은 가교 전해질 막을 제조하기 위해 이온교환 작용기가 도입된 탄화수소계 고분자를 활용하여 다양한 종류의 가교 전해질 막을 제조하는 방법에 대해 논하였다.

Polymer electrolyte membrane fuel cells (PEMFCs) have gained much attention as eco-friendly energy conversion devices without emission of environmental pollutant. Polymer electrolyte membrane (PEM) that can transfer proton from anode to cathode and also prevent fuel cross-over has been regarded as a key component of PEMFCs. Although perfluorinated polymer membranes such as Nafion® were already commercialized in PEMFCs, their high cost and toxic byproduct generated by degradation have still limited the wide spread of PEMFCs. To overcome these issues, development of hydrocarbon based PEMs have been studied. Incorporation of cross-linked structure into the hydrocarbon based PEM system has been reported to fabricate the PEMs showing both high proton conductivity and outstanding physicochemical stability. This study focused on the various cross-linking strategies to the preparation of cross-linked PEMs based on hydrocarbon polymers with ion conducting groups for application in PEMFCs.

키워드

과제정보

이 연구는 2020년도 정부의 재원으로 한국연구재단 사업(NRF-2019M3E6A1064797, NRF-2019R1F1A1060550) 및 산업통산자원부 소재부품기술개발사업(20007143)의 지원을 받아 수행되었습니다.

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