Abstract
A cubic perovskite Ba2ZnCeO5 phase is obtained via solid-phase synthesis. This phase has the capacity for the reversible dissociative absorption of water from the gas phase. The resulting energetically inequivalent ОН− groups are removed completely from the structure at temperatures above 650°C. Electrical conductivity measurements reveal a considerable (order-of-magnitude) increase in conductivity in humid air with \({P_{{H_2}O}}\) = 3 × 10−2 atm at T = 400–600°C. It is shown by EMF method that the sample exhibits proton conductivity that predominates at temperatures below 550°C.
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Original Russian Text © D.V. Korona, I.V. Ivanova, A.V. Obrubova, A.R. Sharafutdinov, I.E. Animitsa, 2017, published in Izvestiya Rossiiskoi Akademii Nauk, Seriya Fizicheskaya, 2017, Vol. 81, No. 5, pp. 690–693.
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Korona, D.V., Ivanova, I.V., Obrubova, A.V. et al. Proton conductivity and the thermal properties of Ba2CeZnO5 . Bull. Russ. Acad. Sci. Phys. 81, 628–631 (2017). https://doi.org/10.3103/S1062873817050124
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DOI: https://doi.org/10.3103/S1062873817050124