수전해용 술폰화 폴리에테르 에테르 케톤과 셀룰로오스 고분자 복합막의 제조 및 특성
Preparation and Characterization of SPEEK/Cellulose Polymer Composite Membranes for Water Electrolysis
PEMWE(고분자 전해질 막 수전해), SPEEK(술폰화 폴리에테르에테르케톤), Cellulose(셀룰로오스),Covalently linked(공유 결합), Proton conductivity (수소 이온 전도도)
YURI SONG1, JINSAN CHA1, YOUNGYO YOON1, SANG-BONG MOON2, JANG-HOON CHUNG1†
Polyether ether ketone (PEEK) composite membranes have been intensively investigated for polymer
electrolyte 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 covalently
linked SPEEK and cellulose polymer composite membranes. The composite membranes showed better thermostability
and 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 better
than that of Nafion.