Cd|KOH|NiOOH

Zn|NH4CI|MnO2

Li|LiClO4|MnO2

Pb|H2SO4|PbO2

H2|KOH|O2

Potassium ion conductivity in mixed gallate-ferrite solid electrolytes

New potassium solid electrolytes in the mixed gallate-ferrite systems K0.85Pb0.75(Ga1-xFex)O2 and K1.85(Ga1-xFe_x)1.925V0.75O4 were synthesized and studied. In the both systems the monotonic increasing of conductivity with increasing of Fe3+ concentration takes place, anomalies as in the early investigated aluminate-ferrite systems does not fixed. Conductivities at the intermediate ranges of «x» have rather high values (> 10-2 Cm·sm-1 at 50°C, > 1 Cm·sm-1 at 70°C), this allowes to optimize the composition of solid electrolytes at the relation of conductivity/stability properties.

Literature

1. Burmakin E. I. Tverdye elektrolity s provodimost'ju po kationam shhelochnyh metallov [Solid electrolytes with conductivity cations alkali metal] Moskow, Nauka Publ., 1992, 264 p. (in Russian).
2. Crosbi G. H. J. Electrochem. Soc., 1982, vol.129, pp.2727.
3. Aleksandrov K. A., Batalov N. N., Kozlova Z. R., Surikov V. T. Elektrokhimicheskaya Energetika [ Electrochemical Energetics], 2007, vol.7, pp. 21. (in Russian).
4. Ivanov-Shic A. K., Murin I. V. Ionika tverdogo tela [ Solid state ionics]. S-Peterburg, SPbGU Publ., 2000, 616 p. (in Russian).
5. Burmakin E. I., Shehtman G. Sh., Antonov B. D. Elektrokhimiya [ Russian Journal of Electrochemistry], 2011, vol. 47, pp. 480–483. (in Russian).
6. Burmakin E. I., Shehtman G. Sh., Nechaev G. V. Russian J. Electrochem., 2012, vol. 48, pp. 1079–1083.
7. Burmakin E. I., Nechaev G. V., Plaksin S. V. Elektrokhimicheskaya Energetika [ Electrochemical Energetics], 2011, vol. 11, pp. 26–30. (in Russian).
8. Burmakin E. I., Shehtman G. Sh., Zhidovinova S. V. Zhurnal neorganicheskoi khimii [ Russian J. Inorganic Chemistry], 1985, vol. 30, pp. 2228–2230 (in Russian).
9. Natarajan M, Secco E. A. Canad. J. Chem., 1975, vol. 53, pp. 1542–1547.
10. Lutz H., Schmidt W., Haueseler H. Z. anorg. allg. Chem., 1979, bd. 453, pp. 121–126.
11. Vielhaber E., Hoppe E. Z. anorg. allg. Chem., 1969, bd. 369. pp. 14–32.
12. Burmakin E. I., Venediktova M. Je., Shehtman G. Sh. Elektrokhimiya, [ Russian J. Electrochem.], 1985, vol. 21, pp. 747–751. (in Russian).
13. Shannon R. D. Acta Cryst., 1976, vol. A32, pp. 751–767.

Full Text (PDF):
(downloads: 28)