| Autor: |
Evans, Anna, Karalić, Sasa, Martynczuk, Julia, Prestat, Michel, Tölke, René, Yáng, Zhen, Gauckler, Ludwig J. |
| Zdroj: |
ECS Transactions; April 2012, Vol. 45 Issue: 1 |
| Abstrakt: |
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 °C. The LSC thin films deposited under a high oxygen chamber pressure are nanocrystalline after thermal treatment at 550 °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 free-standing quasi-symmetrical LSC|YSZ|LSC membranes. LSC electrodes with a thickness of ~150 nm had an area specific resistance (ASR) of 3.7 Ωcm2 at 550 °C. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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