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Conductivity of potassium-cationic solid electrolytes in the K0.85Pb0.075(Fe1 − x Al x )O2 system

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Abstract

New potassium-conducting solid electrolytes in the mixed ferrite-aluminate system K0.85Pb0.075(Fe1 − x Al x )O2 are synthesized and studied. The electrolytes exhibit high ionic conductivity in the studied temperature range of 350 to 750°C (approximately 10−2 S/cm at 400°C and approximately 10−1 S/cm at 700°C). An increase in the conductivity with increasing concentration of iron in the specimens is a general tendency. However, in a wide range of compositions (from x = 0.2 to x = 0.9), the conductivity only slightly depends on x. Possible reasons for the effect of Fe/Al ratio in the structure of solid electrolytes on their transport properties are discussed.

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Authors and Affiliations

  1. Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, ul. S. Kovalevskoi 22, Ekaterinburg, 620990, Russia

    E. I. Burmakin, G. Sh. Shekhtman & B. D. Antonov

Authors
  1. E. I. Burmakin
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  2. G. Sh. Shekhtman
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  3. B. D. Antonov
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Correspondence to E. I. Burmakin.

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Original Russian Text © E.I. Burmakin, G.Sh. Shekhtman, B.D. Antonov, 2011, published in Elektrokhimiya, 2011, Vol. 47, No. 4, pp. 480–483.

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Burmakin, E.I., Shekhtman, G.S. & Antonov, B.D. Conductivity of potassium-cationic solid electrolytes in the K0.85Pb0.075(Fe1 − x Al x )O2 system. Russ J Electrochem 47, 453–456 (2011). https://doi.org/10.1134/S1023193511040069

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  • DOI: https://doi.org/10.1134/S1023193511040069

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