Abstract
The complex oxide Ba2InAlO5 was obtained by the solid-phase method. Its thermal and transport properties were studied for the first time while varying the temperature and composition of the gas phase (partial pressure of water and oxygen vapors). The possibility of dissociative incorporation of water in the structure of the complex oxide, leading to the formation of proton defects and proton transfer in the medium temperature range (500–700°C), was established. The conductivity was differentiated into components. It was proved that the total electric conductivity of the phase in dried air is mainly of hole type with a small contribution of oxygen-ion transport. In a humid atmosphere, the contribution and magnitude of ion conductivity increase due to the appearance of proton transfer.
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This study was financially supported under the government contract АААА-А20-120061990010-7.
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Translated by L. Smolina
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Alyabysheva, I.V., Kochetova, N.A., Matveev, E.S. et al. Transport Properties of Complex Oxide Ba2InAlO5. Russ J Electrochem 58, 1033–1040 (2022). https://doi.org/10.1134/S1023193522110039
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DOI: https://doi.org/10.1134/S1023193522110039