PIKALOVA Elena Yurievna
1, KOLCHUGIN Alexander Anatolievich
1,2, BOGDANOVICH Nina Mihailovna
1, BRONIN Dimitry Igorevich
1
1Institute of High Temperature Electrochemistry, UB RAS, Academicheskaya st. 20, 620990, Ekaterinburg, Russia
2Vitus Bering Kamchatka State University, Pogranichnaya 4, 683032, Petropavlovsk Kamchatskiy, Russia
Abstract
The present work focuses on the electrical properties of La
2–xCa
xNiO
4+δ (x=0–0.4) and
the electrochemical performance of the cathodes based on these materials with a LаNi
0.6Fe
0.4O
3-δ current collector in contact with a Ce
0.8Sm
0.2O
1.9 electrolyte. The effect of the sintering temperature on the polarization resistance of La
1.7Ca
0.3NiO
4+δ–Ce
0.8Sm
0.2O
1.9 composites of different content has been studied by an impedance spectroscopy method. The composite electrode 50 wt.% La
1.7Ca
0.3NiO
4+δ – 50 wt.% Ce
0.8Sm
0.2O
1.9 sintered at the temperature below 1300ºC has showed the lowest polarization resistance value equal to 0.27 Ωcm
2 and in case of PrO
x infiltration 0.033 Ωcm
2 at 800ºC in air.
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