Synthesis of Dual Oxide Cathode for IT-SOFCs via Th ermal Plasma

2018-09-25
Aysal, Havva Eda
Sarı, Doğancan
Pişkin, Fatih
Öztürk, Tayfur
The composition and microstructure of cathode materials has a large impact on the performance of solid oxide fuel cells (SOFCs). It was recently shown that the sputter deposited (La0.8Sr0.2) CoO3 (LSC-113) - (La0.5Sr0.5)2CoO4 (LSC-214) dual phase cathode yield the best performance where the mixture had an amorphous-like structure. In this study a composite cathode of LSC-113: LSC-214 was synthesized via thermal plasma using a large flow rate of quenching gas yielding non-equilibrium cathode powder. The purpose is to see if similar performance improvement could be obtained with plasma synthesized powder. Powder obtained were then screen printed onto the gadolinium doped ceria (Gd0.1Ce0.9O1.95) electrolytes and were characterized based on EIS responses using a symmetric cell under air.
Citation Formats
H. E. Aysal, D. Sarı, F. Pişkin, and T. Öztürk, “Synthesis of Dual Oxide Cathode for IT-SOFCs via Th ermal Plasma,” İstanbul, Turkey, 2018, vol. 1, p. 940, Accessed: 00, 2021. [Online]. Available: https://www.metalurji.org.tr/docs/immc/IMMC2018_Degerlendirme.pdf.