High-Temperature Properties of New Perovskite-Like Oxides

S. Ya. Istomin^a^,*, A. P. Ber^a, N. V. Lyskov^b, and E. V. Antipov^a
Translated by O. Fedorova

^aDepartment of Chemistry, Moscow State University, Moscow, 119992 Russia

^bInstitute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia

Correspondence to: *e-mail: istomin@icr.chem.msu.ru

Received 17 November, 2016

Abstract—New complex oxides of composition Pr_1 – yCa_yFe_{0.5 + x}(Mg_0.25Mo_0.25)_0.5 – xO₃, 0.0 ≤ x ≤ 0.1, 0.42 ≤ y ≤ 0.8 having an orthorhombically distorted perovskite structure have been prepared. The thermal expansion and electric conductivity of the new phases have been studied in the temperature range between 100–900°C. The results of our study imply that thin films of the oxides studied can be treated as electrode materials for symmetric solid-oxide fuel cells.

DOI: 10.1134/S0036023617080095