한국신재생에너지학회:학술대회논문집
- 2009.06a
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- Pages.282-285
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- 2009
Preparation and characterization of proton exchange membranes in non-aqueous conduction
무수 전도성 양성자 교환막 제조 및 특성평가
- Park, Jin-Soo ;
- Sekhon, S.S. ;
- Baek, Ji-Suk ;
- Yang, Tae-Hyun ;
- Kim, Chang-Soo ;
- Yim, Sung-Dae ;
- Park, Gu-Gon
- 박진수 (한국에너지기술연구원) ;
- ;
- 백지숙 (연세대학교, 한국에너지기술연구원) ;
- 양태현 (한국에너지기술연구원) ;
- 김창수 (한국에너지기술연구원) ;
- 임성대 (한국에너지기술연구원) ;
- 박구곤 (한국에너지기술연구원)
- Published : 2009.06.25
Abstract
This study presents preparation and characterization of composite membranes based on ionic liquids. The ionic liquids act as water in sulfonated membranes. On the behalf of ionic conduction through ionic liquid inside the membranes, non-aqueous membranes showed Arrenhius dependence on temperature with no external humidification. It was implied that hopping mechanism of proton was dominant in the ionic liquid based membranes. In addition, small angle X-ray (SAXS) studies provided the information on morphology of ionic clusters formed by the interaction between sulfonic acid groups of the polymers and ionic liquids. The SAXS spectra showed matrix peaks, ionomer peaks and Prodo's law for Nafion based composite membranes and only matrix peaks for hydrocarbon based ones. However, ionic conductivity and atomic force microscopy (AFM) images showed the clear formation of ionic clusters of the hydrocarbon based composite membranes. It implies for ionic liquid based high temperature membranes that it is important to use sulfonated polymers as solid matrix of ionic liquid which can form clear ionic clusters in SAXS spectra.
Keywords