Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Preparation of Polyether ether ketone[PEEK]/Heteropolyacid [HPA] Blends Membrane for Hydrogen production via Electrodialysis

PEEK/HPA를 이용한 수전해용 저온형 고체고분자 전해질막의 제조

  • Lee, Hyuck-Jae (Dep. of Chemical Engineering, Myongji Univ.) ;
  • Jung, Yun-Kyo (Dep. of Chemical Engineering, Myongji Univ.) ;
  • Jang, In-Young (Dep. of Chemical Engineering, Myongji Univ.) ;
  • Hwang, Gab-Jin (Hydrogen Energy Research Center, Korea Institute of Energy Research) ;
  • Bae, Ki-Kwang (Hydrogen Energy Research Center, Korea Institute of Energy Research) ;
  • Sim, Kyu-Sung (Hydrogen Energy Research Center, Korea Institute of Energy Research) ;
  • Kang, An-Soo (Dep. of Chemical Engineering, Myongji Univ.)
  • 이혁재 (명지대학교 화학공학과) ;
  • 정윤교 (명지대학교 화학공학과) ;
  • 장인영 (명지대학교 화학공학과) ;
  • 황갑진 (한국에너지기술연구원 수소에너지연구센터) ;
  • 배기광 (한국에너지기술연구원 수소에너지연구센터) ;
  • 심규성 (한국에너지기술연구원 수소에너지연구센터) ;
  • 강안수 (명지대학교 화학공학과)
  • Published : 2005.03.15
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Abstract

Until recently, only perfluorinated ionomer membrane such as Nation and Aciflex practically could be successfully used in water splitting. However, these membrane are limited by high cost and loss of membrane performance such as proton conductivity at elevated temperature above 80$^{\circ}C$. The sulfonated aromatic polymers such as PEEK and PSf, polyimides, and polybenzimidazoles are expected to have lower production cost as well as satisfactory chemical and electrochemical properties. HPAs and sulfonated polymers could have a significant influence on water electrolysis performance at elevated temperatures above 80$^{\circ}C$, but these phenomena have received relatively little attention until now. Therefore, it would be desirable to investigate the interrelation between the HPA and sulfonated polymer, such as SPEEK. The SPEEK membrane were prepared by the sulfonation of PEEK, and HPA was blended with SPEEK to increase the mechanical strength and electrochemical characteristics. As a results, electrochemical characteristics such as proton conductivity and ion exchange capacity were improved with the addion of 0.5 g HPA. And the properties of polymer electrolyte, SPEEK/HPA were better than Nation membrane at elevated temperature above 80$^{\circ}C$.

Keywords

References

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