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수전해용 술폰화 폴리에테르 에테르 케톤과 고정된 TPA 고분자 복합막의 제조 및 특성
차진산,윤영요,김민진,김보영,문상봉,정장훈 한국수소및신에너지학회 2017 한국수소 및 신에너지학회논문집 Vol.28 No.1
Polyether ether ketone (PEEK) composite including tungstophosphoric acid(TPA) membranes have been intensively investigated for polymer electrolyte membrane water electrolysis (PEMWE) and thus covalently linked sulfonated polyether ether ketone (CL-SPEEK) with captured TPA composite membranes were prepared and characterized. Sulfonated polyether ether ketone (SPEEK) was prepared in sulfonation of PEEK and was cross-linked with 1,4 diiodobutane. The carbonyl group of SPEEK was reduced with NaBH4 and 3-isocyanatepropyltriethoxysilane (ICPTES) was added. The TPA captured composite was prepared in reaction of TPA with 3-mercaptopropyltrime thoxysilane (MPTMS). The polymer composite membranes showed better thermostability and electrochemical properties than SPEEK. The membranes were prepared by sol-gel casting method. The polymer composite membrane featured 0.1285 S/cm of proton conductivity at 80℃ and outstanding durability.
수전해용 술폰화 폴리에테르 에테르 케톤과 셀룰로오스 고분자 복합막의 제조 및 특성
송유리,차진산,윤영요,문상봉,정장훈 한국수소및신에너지학회 2016 한국수소 및 신에너지학회논문집 Vol.27 No.5
Polyether ether ketone (PEEK) composite membranes have been intensively investigated for polymerelectrolyte membrane water electrolysis (PEMWE). Covalently linked (CL) sulfonated polyether ether ketone(SPEEK) and cellulose polymer composite membranes were prepared and characterized. Polyether ether ketone(PEEK) and cellulose were sulfonated and then were covalently linked by 1,4-diiodobutane to produce covalentlylinked SPEEK and cellulose polymer composite membranes. The composite membranes showed better thermostabilityand electrochemical properties than SPEEK. The membranes were prepared by sol-gel casting method. CL-SPEEK/Cellulose composite membrane featured 0.2453 S/cm of proton conductivity at 80°C which was betterthan that of Nafion.
탄화수소계열 수전해용 공유가교 SPEEK/Cellulose 복합막의 다양한 함량의 가교제에 따른 제조 및 특성
김보영,김민진,윤영요,문상봉,정장훈 한국수소및신에너지학회 2018 한국수소 및 신에너지학회논문집 Vol.29 No.5
The polymer electrolyte membranes, CL-SPEEK/Cellulose composite membrane I, II, III with the improved electrochemical and mechanical properties were prepared and characterized. The engineering plastic polyether ether ketone (PEEK) and cellulose were sulfonated and cross-linked. The membranes were prepared by sol-gel casting method with different amount of cross-linking reagent. In conclusion, the composite membranes I, II, III showed improved thermostability, tensile strength and oxidative durability. Proton conductivity of the membranes was also improved and the composite membrane I showed 0.1312 S/cm at 80℃ which was the best of those composite membranes.