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J. Korean Ceram. Soc. > Volume 51(3); 2014 > Article
Journal of the Korean Ceramic Society 2014;51(3): 224.
doi: https://doi.org/10.4191/kcers.2014.51.3.224
Infiltration법을 이용한 LaySr1-yFexTi1-xO3계 나노복합 연료극 제조
윤종설, 최영주, 황해진
인하대학교 신소재공학과
Fabrication of LaySr1-yFexTi1-xO3-based Nanocomposite Solid Oxide Fuel Cell Anodes by Infiltration
Jong-Seol Yoon, Yeong-Ju Choe, Hae-Jin Hwang
Department of Materials Science and Engineering, Inha University
ABSTRACT
Nano-sized gadolinium-doped ceria (GDC)/nickel particle-dispersed $La_ySr_{1-y}Ti_{1-x}Fe_xO_3$ (LSFTO)-based composite solid oxide fuel cell anodes were fabricated by an infiltration method and the effects of the GDC/Ni nanoparticles on the anode polarization resistance and cell performance were investigated in terms of the infiltration time and nickel content. The anodic polarization resistance of the LSFTO anode was significantly enhanced by GDC and/or Ni infiltration and it decreased with increasing infiltration time and Ni content, respectively. It is believed that the observed phenomena are associated with enhancement of the ionic conductivity and catalytic activity in the nanocomposite anodes by the addition of GDC and Ni. Power densities of cells with the LSFTO and LSFTO-GDC/Ni nanocomposite anodes were 150 and $300mW/cm^2$ at $800^{circ}C$, respectively.
Key words: Solid oxide fuel cells, Strontium titanate, Nanocomposites, Oxide anodes
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