Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7736042 | Journal of Power Sources | 2014 | 10 Pages |
Abstract
Strontium doped lanthanum manganite cathode stability in 0-10% carbon dioxide containing air has been studied in the temperature range of 1023-1123Â K with cathodic biases of 0Â V and 0.5Â V. The current density of the LSM cathode remains stable after an initial decrease. Surface analyses of the pre-test and post-test LSM cathodes using Auger electron spectroscopy (AES) and attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) techniques suggest that the formation of SrCO3 at the LSM surface leads to initial performance degradation. Our observations also indicate that CO2 does not affect the current density after an initial LSM activation in air. Overall, the LSM performance degradation in CO2-containing air is less severe than in humidified air.
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Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Boxun Hu, Manoj K. Mahapatra, Michael Keane, Heng Zhang, Prabhakar Singh,