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Synthesis and Characterization of LSCF/CGO Composite Cathode for SOFC  

Park, Jae-Layng (Fuel Cell Research Center, Korea Institute of Energy Research)
Lim, Tak-Hyoung (Fuel Cell Research Center, Korea Institute of Energy Research)
Lee, Seung-Bok (Fuel Cell Research Center, Korea Institute of Energy Research)
Park, Seok-Joo (Fuel Cell Research Center, Korea Institute of Energy Research)
Shin, Dong-Ryul (Fuel Cell Research Center, Korea Institute of Energy Research)
Han, Kyoo-Seung (Dept. of Fine chemical Engineering and Applied Chemistry, Chungnam National Univ.)
Song, Rak-Hyun (Fuel Cell Research Center, Korea Institute of Energy Research)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.21, no.1, 2010 , pp. 19-25 More about this Journal
Abstract
Composites of LSCF($La_{0.6}Sr_{0.4}Co_{0.2}Fe_{0.8}O_{3-\delta}$) and CGO (gadolinium doped ceria)-based ceramics are logical candidate cathode materials with CGO electrolytes. LSCF with perovskite structure was synthesized and investigated by Solid State Reaction (SSR) method used as cathode materials for SOFC (solid oxide fuel cell). The optimized temperature was $1100^{\circ}C$ to synthesize $La_{0.6}Sr_{0.4}Co_{0.2}Fe_{0.8}O_{3-\delta}$ with rhombohedral structure. The polarization resistance of the LSCF/CGO (50:50 wt.%) was smaller than that of other composite cathodes. The analysis of the EIS data of LSCF/CGO suggests that the diffusion and adsorption-desorption of oxygen can be the key process in the cathodic reaction.
Keywords
SOFC; Cathode; LSCF; CGO; Composite;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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