전기화학회지 (Journal of the Korean Electrochemical Society)

  • 제12권2호
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  • Pages.173-180
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  • 2009
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  • 1229-1935(pISSN)
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  • 2288-9000(eISSN)
한국전기화학회 (The Korean Electrochemical Society)
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방사선 그라프트 PFA-폴리스티렌 멤브레인으로 제조한 직접 메탄올 연료전지용 MEA의 성능과 특성

Characterization and Performance of MEA for Direct Methanol Fuel Cell Prepared with PFA Grafted Polystyrene Membranes via Radiation-Grafting Method

  • 강세구 (한국에너지기술연구원 연료전지연구단) ;
  • 백동현 (한국에너지기술연구원 연료전지연구단) ;
  • 김상경 (한국에너지기술연구원 연료전지연구단) ;
  • 임성엽 (한국에너지기술연구원 연료전지연구단) ;
  • 정두환 (한국에너지기술연구원 연료전지연구단) ;
  • 박영철 (한국에너지기술연구원 연료전지연구단) ;
  • 신준화 (한국원자력연구원 정읍방사선과학연구소 방사선공업환경연구부) ;
  • 강필현 (한국원자력연구원 정읍방사선과학연구소 방사선공업환경연구부) ;
  • 노영창 (한국원자력연구원 정읍방사선과학연구소 방사선공업환경연구부) ;
  • 설용건 (연세대학교 화공생명공학과)
  • Kang, Se-Goo (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Peck, Dong-Hyun (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Kim, Sang-Kyung (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Lim, Seong-Yop (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Jung, Doo-Hwan (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Park, Young-Chul (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Shin, Jun-Hwa (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Kang, Phil-Hyun (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Nho, Young-Chang (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Shul, Yong-Gun (Department of Chemical and Biomolecular Engineering, Yonsei University)
  • 발행 : 2009.05.30
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초록

DMFC (Direct Methanol Fuel Cell)용의 새로운 고분자 전해질 멤브레인을 개발하기 위하여 스티렌 단량체를 poly(tetrafluoroethylene perfluoropropyl vinyl ether) (PFA) 필름에 그라프트 중합 반응시킨 후에 술폰화 반응을 진행하였다. $\Upsilon$-ray를 이용하여 방사선 그라프트 중합 반응시킨 방사선 그라프트 필름의 술폰화 반응은 chlorosulfonic acid/dichloroethane (5 v/v%) 혼합 용액에서 진행하였다. PFA 그라프트 폴리스티렌 멤브레인 (PFA-g-PSSA)의 화학적, 물리적, 전기화학적 및 형태의 특성은 푸리에 변환 적외선 분광기 (FTIR), 이온전도도 측정기 및 주사전자현미경 (SEM)으로 분석하고 함수율과 메탄올 투과도도 측정하였다. PFA-g-PSSA 멤브레인으로 제작한 MEA의 단위전지 성능을 평가하였고, 전지의 셀 저항은 임피던스 분석 장치를 이용하여 측정하였다. PFA-g-PSSA 멤브레인으로 제조한 MEA는 Nafion 112로 제조한 MEA보다 우수한 DMFC 성능을 나타내었다.

In order to develop a novel polymer electrolyte membrane for direct methanol fuel cell (DMFC), styrene monomer was graft-polymerized into poly(tetrafluoroethylene perfluoropropyl vinyl ether) (PFA) film followed by a sulfonation reaction. The graft polymerization was prepared by the $\Upsilon$-ray radiation-grafting method. Subsequently, sulfonation of the radiation-grafted film was carried out in a chlorosulfonic acid/1,2-dichloroethane (2 v/v%) solution. The chemical, physical, electrochemical and morphological properties of the radiation-grafted membranes (PFA-g-PSSA) were characterized by fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The water uptake, ionic conductivity, and methanol permeability of the PFA-g-PSSA membrane were also measured. The cell performances of MEA prepared with the PFA-g-PSSA membranes were evaluated and the cell resistances were measured by an impedance analyzer. The MEA using PFA-g-PSSA membranes showed superior performance for DMFCs in comparison with the commercial Nafion 112 membrane.

키워드

참고문헌

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피인용 문헌

  1. Fabrication of Silane-crosslinked Proton Exchange Membranes by Radiation and Evaluation of Fuel Cell Performance vol.36, pp.4, 2012, https://doi.org/10.7317/pk.2012.36.4.525
  2. Experimental Study for Separation of Membrane and Recovery of Platinum from MEA vol.20, pp.4, 2011, https://doi.org/10.7844/kirr.2011.20.4.052
  3. Silane-crosslinked Proton Exchange Membranes Prepared by a Stepwise Radiation Grafting vol.36, pp.6, 2012, https://doi.org/10.7317/pk.2012.36.6.816
  4. Hydrophilization of a Porous Polytetrafluoroethylene Supporter by Radiation Grafting Poly(Acrylonitrile-co-Sodium Allylsulfonate) vol.38, pp.3, 2014, https://doi.org/10.7317/pk.2014.38.3.293