Abstract
Single fuel cells with bilayer supported cathodes are manufactured and tested. The cathodes consist of a high-porous La0.6Sr0.4MnO3 support with the thickness of approximately 1 mm and a functional composite layer with the thickness of 13–15 μm made of La0.75Sr0.2MnO3 and 8YSZ. Voltammetric and power characteristics of single fuel cells with a supported cathode, thin-film YSZ electrolyte, and platinum cathode are determined. The conclusion as to the significant contribution into the polarization overpotential losses on the cathode is made on the basis of the measurements of electric fuel cell characteristics. It decreases significantly as a result of the supported cathode modification by praseodymium oxide. At 850°C and voltage of 0.81 V, electric power density of a fuel cell was 1.65 W/cm2.
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Original Russian Text © S.M. Beresnev, O.F. Bobrenok, B.L. Kuzin, N.M. Bogdanovich, A.A. Kurteeva, D.A. Osinkin, G.K. Vdovin, D.I. Bronin, 2012, published in Elektrokhimiya, 2012, Vol. 48, No. 10, pp. 1066–1072.
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Beresnev, S.M., Bobrenok, O.F., Kuzin, B.L. et al. Single fuel cell with supported LSM cathode. Russ J Electrochem 48, 969–975 (2012). https://doi.org/10.1134/S1023193512100035
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DOI: https://doi.org/10.1134/S1023193512100035