| Autor: |
Bierschenk, D. M., Haag, J. M., Poeppelmeier, K. R., Barnett, S. A. |
| Zdroj: |
Journal of the Electrochemical Society; January 2013, Vol. 160 Issue: 2 |
| Abstrakt: |
Composite solid oxide fuel cell (SOFC) anodes consisting of LaSr2Fe2CrO3-δ(LSFeCr) and Gd0.1Ce0.9O2-δ(GDC) were evaluated during operation on H2, H2O-Ar-H2, CO, and CO-H2mixtures. Impedance spectroscopy studies showed three different electrode processes that varied in importance with temperature and fuel composition. The primary impedance response peaked at ∼2 Hz and followed a similar dependence on H2partial pressure in both H2-H2O-Ar and H2–CO mixtures. The total anode polarization resistance at 800°C increased by a factor of ∼2 on going from pure H2fuel to pure CO. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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