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J. Korean Ceram. Soc. > Volume 40(3); 2003 > Article
Journal of the Korean Ceramic Society 2003;40(3): 241.
doi: https://doi.org/10.4191/kcers.2003.40.3.241
SOFC용 다공성 NiO-YSZ 음극소재의 강도향상에 관한 연구
이기성, 서두원, 유지행, 우상국
한국에너지기술연구원 에너지재료연구센터
A Study on the Improvement of Strength in NiO-YSZ Porous Anode Material for Solid Oxide Fuel Cell
We controlled the amount of Y$_2$O$_3$additives, 8 mol% and 10 mol%, and the type of carbon pore former, activated carbon and carbon black, to improve the strength of porous NiO-YSZ anode materials for solid oxide fuel ceil. The 3-point flexural strength, porosity and electrical conductivity were evaluated. As a result, the strength of anode materials with the addition of carbon black was markedly improved. The strength of NiO-10 mol%YSZ sintered at relatively higher temperature was higher than that of NiO-8 mol%YSZ materials. The electrical conductivity of NiO-10 mol%YSZ with carbon black was evaluated as much as 10$^2$∼10$^3$S/cm at 700$^{circ}C$∼1000$^{circ}C$ in reducing atmosphere.
Key words: Solid Oxide Fuel Cell (SOFC), Anode, Strength, Pore former additive
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