Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
ISSN-L : 1348-6535
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Preparation of IT-SOFC with Pr2NiO4 cathode and hybrid Ce0.8Sm0.2O1.9 electrolyte
Ming-Xian LINSubramanian SAKTHINATHANTe-Wei CHIUHorng-Yi CHANGYao-Ming WANG
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2019 Volume 127 Issue 4 Pages 249-253


Pr2NiO4 (PNO) powders were synthesized by the glycine-nitrite process (GNP) for use as the cathode in an intermediate-temperature (500–800°C) solid oxide fuel cell (IT-SOFC). When PNO powder was calcined at 1200°C for 1 h, the pure single phase with good crystallization K2NiF4-type structure was obtained. Moreover, samarium doped ceria (Ce0.8Sm0.2O1.9, SDC) and NiO-SDC were used as electrolyte and anode, respectively. The maximal power density of 439 mW/cm2 was obtained by the PNO/SDC/NiO-SDC cell at 800°C. Furthermore, the electrolyte surface of co-pressed SDC/NiO-SDC was modified with a chemical solution deposition derived SDC layer to improve the cell performance. Besides, the power density of the PNO/SDC layer/SDC/NiO-SDC cell increased to 487 mW/cm2 at 800°C. These results suggest that PNO cathode materials prepared by GNP and chemical solution deposition modified SDC electrolyte have potential for application in anode-supported IT-SOFCs.

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