Potassium-ionic conduction in the gallate-ferrite solid electrolytes |
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Authors: | E. I. Burmakin G. Sh. Shekhtman |
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Affiliation: | 1.Institute of High-Temperature Electrochemistry, Ural Branch,Russian Academy of Sciences,Yekaterinburg,Russia |
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Abstract: | New potassium-conducting solid electrolytes in the mixed gallate-ferrite systems (1 − x)Ga2O3 · xFe2O3 · 0.25TiO2 · K2O and 1.5[(1 − x)Ga2O3 · xFe2O3] · TiO2 · 2K2O are synthesized and studied. The electrolytes exhibit high ionic conductivity in the test temperature range of 300 to 750°C (above 10−2 S/cm at 300°C and above 10−1 S/cm at 700°C). An increase in the conductivity with increasing concentration of iron in the specimens is a general tendency. Possible reasons for the effect of Ga/Fe ratio in the structure of solid electrolytes on their transport properties are discussed. |
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