Abstract
Studies of oxygen diffusion, interphase exchange, specific electric conductivity, and thermal expansion showed that perovskite-like Sr0.7Ce0.3MnO3 − δ (SCMO) as a potential cathode material for solid oxide fuel cells (SOFCs) has considerable advantages over the conventional materials based on lanthanum-strontium manganites. To prevent the interactions of SCMO with solid electrolyte membranes of stabilized zirconia and lanthanum gallate, it is necessary to deposit protective layers of solid solutions based on cerium oxide, which do not form new phases in contact with SCMO and electrolytes. The trials of model SOFCs with porous SCMO-based cathodes demonstrated satisfactory electrochemical and endurance characteristics of these electrodes.
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Original Russian Text © I.E. Kuritsyna, V.V. Sinitsyn, Yu.S. Fedotov, S.I. Bredikhin, E.V. Tsipis, V.V. Kharton, 2014, published in Elektrokhimiya, 2014, Vol. 50, No. 8, pp. 795–800.
This publication was prepared based on a lecture delivered at the All Russian Conference with international participation “Fuel Cells and Power Plants,” Chernogolovka, 2013.
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Kuritsyna, I.E., Sinitsyn, V.V., Fedotov, Y.S. et al. Stability and functional properties of Sr0.7Ce0.3MnO3 − δ as cathode material for solid oxide fuel cells. Russ J Electrochem 50, 713–718 (2014). https://doi.org/10.1134/S1023193514080084
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DOI: https://doi.org/10.1134/S1023193514080084