| 초록 |
In this study, nanoscale ScSZ-based electrolyte powder was prepared by hydrothermal synthesis method. The synthesis characteristics of powder such as particle crystallite, morphology of the powder surface and surface area were observed. As a result, the powder shows a uniform morphology of nano particle, which has crystallite size of 5~10nm level with a high surface area of 300m2/g after synthesis and ionic conductivity of 0.1S/cm at 800℃. Moreover thin film electrolyte of under 10㎛ was fabricated by tape casting using the synthesized ScSZ-based powders. Electrochemical evaluations of the SOFC unit cell such as power density and impedance were performed and analyzed. |
