| Autor: |
Lyskov, N. V., Galin, M. Z., Kostretsova, N. B., Eliseeva, G. M., Kolchina, L. M., Mazo, G. N. |
| Předmět: |
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| Zdroj: |
Russian Journal of Electrochemistry; Jun2018, Vol. 54 Issue 6, p527-532, 6p |
| Abstrakt: |
The electrochemical properties are studied for composite electrodes Pr1.95La0.05CuO4(PLCO)-xCe0.9Gd0.1O1.95(GDC), where x = 20, 30, 40, and 50 wt % GDC with the aim of finding the composition with the best electrochemical efficiency in the oxygen reduction reaction. Varying the temperature of sintering of the PLCO-xGDC electrode layer to the surface of GDC solid electrolyte shows that the minimum polarization resistance (Rη) is reached at the temperature of 850°C. For the PLCO-xGDC composition containing 40 wt % GDC, in the temperature range of 600-750°C, the maximum electrochemical activity in oxygen reduction reaction is observed as indicated by 10-fold decrease in Rη as compared with single-phase PLCO (from 0.87 (x = 0) to 0.08 Ω cm2 (x = 40) at 700°C in air). According to the data obtained, the PLCO-40GDC composite can be considered as a promising cathode material for intermediate temperature solid oxide fuel cells. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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