수전해용 공유가교 SPEEK/Cs-TSiA 막의 Ceria의 함량에 따른 제조 및 성능 연구

• Published in: 한국수소 및 신에너지학회 논문집 Vol. 26; no. 3; pp. 212 - 220
• Main Authors: 윤대진(Dae Jin Yoon), 오연선(Yun Sun Oh), 서현(Hyeon Seo), 문상봉(Sang Bong Moon), 정장훈(Jang Hoon Chung)
• Format: Journal Article
• Language: Korean
• Published: 한국수소및신에너지학회 2015
• Subjects: 기계공학; PEMWE; 공유가교결합; 고분자 전해질 막 수전해; Covalently cross-link; 술폰화 폴리에테르에테르케톤; Radical scavenger; 라디칼 스캐빈져; Cs-TSIA; Oxidative stability; Ceria(Cerium(IV) oxide; SPEEK; 세리아; 산화내구성; Cs-substituted TSiA
• ISSN: 1738-7264; 2288-7407
• DOI: 10.7316/KHNES.2015.26.3.212

The engineering plastic of sulfonated polyether ether ketone (SPEEK) as a polymer matrix has been developed in this lab to replace Nafion, solid polymer electrolytes of perfluorosulfonic acid membrane which has several flaws such as high cost, and limited operational temperature above $80^{\circ}C$. The SPEEK was prepared in the sulfonation reaction of polyether ether ketone (PEEK). The organic-inorganic blended composite membranes were prepared by sol-gel casting method with loading the highly dispersed ceria and cesium-substituted tungstosilicic acid (Cs-TSiA) with cross-linking agent contents of 0.01 mL. In conclusion, CL-SPEEK/Cs-TSiA/ceria 1% membrane showed the optimum results such as 0.1882 S/cm of proton conductivity at $80^{\circ}C$, and 99.61 MPa of tensile strength which were better than Nafion 117 membrane.