화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2011년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터)
권호 15권 1호
발표분야 환경.에너지
제목 Synthesis and characterizations of Ba0.5Sr0.5Co0.8Fe0.2O composite used as a cathode material for solid oxide fuel cells
초록 Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) porous cathode materials for LT-SOFCs were synthesized as powders using CC-EDTA sol-gel method and nanowires using electrospinning technique. Results showed that they were formed as perovskite oxides. BSCF using CC-EDTA formed in powder with the particle size of 1-10um and the specific surface area of 1.0m2 /g. However, the BSCF using electrospinning technique obtained a nanowires structure with diameter in range of 100-200nm and a high porosity with the specific surface area of 2.4m2 /g. The area specific resistance value of BSCF nanowires cathode is 0.234Ωcm2 at 600ºC whereas that of BSCF powders cathode is 1.493Ωcm2 under similar conditions.
저자 태범석1, NGUYEN TRUNG HIEU1, 박희정2, 박준서1
소속 1한경대, 2삼성종합기술원
키워드 nanowires; BSCF perovskite; electrospinning; cathode material; LT-SOFCs
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