Thin Film (La0.7Sr0.3)0.95MnO3-δ Fabricated by Pulsed Laser Deposition and Its Application as a Solid Oxide Fuel Cell Cathode for Low-Temperature Operat
- Thin Film (La0.7Sr0.3)0.95MnO3-δ Fabricated by Pulsed Laser Deposition and Its Application as a Solid Oxide Fuel Cell Cathode for Low-Temperature Operat
- 노호성; 손지원; 이헌; 김혜령; 이종호; 이해원
- Lanthanum strontium manganite (LSM); Thin film cathode; Pulsed laser deposition (PLD); Solid oxide fuel cell (SOFC)
- Issue Date
- 한국세라믹학회지; Journal of the Korean Ceramic Society
- VOL 47, NO 1, 75-81
- The feasibility of using the thin film technology in utilizing lanthanum strontium manganite (LSM) for a solid oxide fuel cell
(SOFC) cathode in a low-temperature regime is investigated in this study. Thin film LSM cathodes were fabricated using pulsed
laser deposition (PLD) on anode-supported SOFCs with yttria-stabilized zirconia (YSZ) electrolytes. Although cells with a 1 μm-thick
LSM cathode showed poor low-temperature cell performance compared to that of a cell with a bulk-processed cathode due
to the lack of a triple-phase boundary length, the cell with 200 nm-thick gadolinia-doped ceria (GDC) inserted between the LSM
and YSZ showed enhanced performance and more stable operation characteristics in a comparison of a cell without a GDC layer.
We postulate that the GDC layer likely improved the cathode adhesion, therefore contributing to the improvement of the cell performance
instead of serving as an interfacial reaction buffer.
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