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

Title
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
Authors
노호성손지원이헌김혜령이종호이해원
Keywords
Lanthanum strontium manganite (LSM); Thin film cathode; Pulsed laser deposition (PLD); Solid oxide fuel cell (SOFC)
Issue Date
2010-01
Publisher
한국세라믹학회지; Journal of the Korean Ceramic Society
Citation
VOL 47, NO 1, 75-81
Abstract
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.
URI
http://pubs.kist.re.kr/handle/201004/37156
ISSN
1229-7801
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KIST Publication > Article
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