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알칼라인 연료전지용 다른 작용기들을 갖는 두 종류의 음이온 교환 막들의 특성 비교

Comparison of Properties of Two Kinds of Anion Exchange Membranes with Different Functional Group for Alkaline Fuel Cells

  • 이승연 (전북대학교 대학원 공과대학교 에너지저장.변환공학과 및 수소.연료전지 연구센터) ;
  • 유동진 (전북대학교 대학원 공과대학교 에너지저장.변환공학과 및 수소.연료전지 연구센터)
  • LEE, SEUNGYEON (Department of Energy Storage/Conversion Engineering of Graduate School, Hydrogen and Fuel Cell Research Center, Chonbuk National University) ;
  • YOO, DONG JIN (Department of Energy Storage/Conversion Engineering of Graduate School, Hydrogen and Fuel Cell Research Center, Chonbuk National University)
  • 투고 : 2018.09.04
  • 심사 : 2018.10.30
  • 발행 : 2018.10.30

초록

This study reports the fabrication of anion exchange membranes (AEMs) containing two kinds of functional groups: i) trimethylphosphite (TMP) and ii) trimethylamine (TMA). We carried out the synthesis of polymers to enhance thermal stability and ion conductivity. The alternative polymer was prepared using 2,2-bis(4-hydroxy-3-methylphenyl)propane and decafluorobiphenyl. The membrane was fabricated by solution casting method. The thermal stability of membranes was examined by TGA. The physiochemical properties of membranes were also investigated in terms of water uptake, swelling ratio, ion exchange capacity, and ion conductivity. The hydroxide ion conductivity of the membranes reached about 20.2 mS/cm for quaternary ammonium poly(arylene ether) (QA-PAE) containing TMA moiety and 5.1 mS/cm for quaternary phosphonium PAE (QP-PAE) containing TMP moiety at $90^{\circ}C$.

키워드

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