1. Fabrication and characterization of SSZ tape cast electrolyte-supported solid oxide fuel cells.
- Author
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Jin, Chao, Mao, Yachun, Rooney, David W., Zhang, Naiqing, and Sun, Kening
- Subjects
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SOLID oxide fuel cells , *ELECTROLYTES , *X-ray diffraction , *IMPEDANCE spectroscopy , *SCANNING electron microscopy , *IONIC conductivity - Abstract
A 10 mol%Sc 2 O 3 , 1 mol%CeO 2 stabilized-ZrO 2 (SSZ) powder was successfully prepared using the sol–gel method. Subsequent SSZ electrolyte pellets were prepared by tape casting technique and sintered at 1400 °C, 1450 °C, 1500 °C, 1550 °C and 1600 °C. These were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS). SSZ showed a pure cubic phase after sintering, the grain size of SSZ increased with the increase of sintering temperature. The SSZ sintered at 1550 °C showed the highest ion conductivity. The maximum power densities of Ni-SSZ/SSZ/La 0.8 Sr 0.2 MnO 3− δ (LSM)-SSZ single cells sintered at 1550 °C were 0.18, 0.36, 0.51 and 0.72 W cm −2 at 650, 700, 750 and 800 °C, respectively. The polarization resistance ( R p ) of the single cell attained 0.201 Ω cm 2 at 800 °C. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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