Structural Features of New Cathode Ba0.5Sr0.5Co0.8 - xFe0.2MoxO3 - d Materials for Medium-Temperature Solid Oxide Fuel Elements
E. V. ARTIMONOVA1, O. A. SAVINSKAYA1, A. P. NEMUDRY1,2
1Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Ul. Kutateladze 18, Novosibirsk 630128 (Russia)
2Novosibirsk State University, Ul. Pirogova 2, Novosibirsk 630090 (Russia)
Keywords: нестехиометрические перовскиты, катодные материалы, твердооксидные топливные элементы, nonstoichiometric perovskites, cathode materials, solid oxide fuel elements
Abstract
Oxides of the composition Ba0.5Sr0.5Co0.8 - x Mo x Fe0.2O3 - d (BSCFM) (0 < x < 0.15), obtained by partial substitution of cobalt in BSCF structure by multicharged molybdenum cations, were studied. It was shown that doping by Mo+6 cations ( x > 0.06) leads to the formation of the heterophase system cubic perovskite-double perovskite. With the help of diffraction in situ and ex situ methods, the processes involved in the interaction of cathode BSCFM5 material with the electrolyte CGO material were studied.
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