期刊
IONIC AND MIXED CONDUCTING CERAMICS 8
卷 45, 期 1, 页码 333-336出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.3701323
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Lanthanum-strontium-cobalt oxide (LSC) thin films fabricated by pulsed laser deposition (PLD) can be used as electrodes for micro-solid oxide fuel cells (micro-SOFCs) in the intermediate temperature range of 450-550 degrees C. The LSC thin films deposited under a high oxygen chamber pressure are nanocrystalline after thermal treatment at 550 degrees C and have a nanoporous microstructure. The buckling pattern of the free-standing yttria-stabilised-zirconia (YSZ) membrane influences the survival rate of the free-standing LSC|YSZ|LSC cells. Electrochemical impedance spectroscopy is used to investigate the properties of the LSC/YSZ interface in freestanding quasi-symmetrical LSC|YSZ|LSC membranes. LSC electrodes with a thickness of similar to 150 nm had an area specific resistance (ASR) of 3.7 Omega cm(2) at 550 degrees C.
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