Abstract
Chlorine-substituted brownmillerite Ba1.95In2O4.9Cl0.1 was obtained from barium indate Ba2In2O5 by solid-phase synthesis. The ability to absorb water from the gas phase was confirmed by thermogravimetric studies. The transport properties were studied while varying the thermodynamic parameters of the external environment (T, pO2, pH2O). The chloride ions in the oxygen sublattice of barium indate Ba2In2O5 were found to affect the ion conductivity. In a humid atmosphere, the sample exhibited proton conductivity (E a = 0.54 eV), whose contribution became dominant below 300°C.
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Original Russian Text © N.A. Tarasova, I.E. Animitsa, 2017, published in Elektrokhimiya, 2017, Vol. 53, No. 7, pp. 827–832.
Published on the basis of a report delivered at the 13th International Meeting “Fundamental Problems of Solid State Ionics,” Chernogolovka, 2016.
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Tarasova, N.A., Animitsa, I.E. Synthesis, hydration, and electric properties of chlorine-substituted brownmillerite Ba1.95In2O4.9Cl0.1 . Russ J Electrochem 53, 734–738 (2017). https://doi.org/10.1134/S1023193517070138
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DOI: https://doi.org/10.1134/S1023193517070138