Статья
2018

Electrical Properties of Fluoro-Substituted Perovskites Ba2 − 0.5xCaNbO5.5 −xFx


N. A. Tarasova N. A. Tarasova , I. E. Animitsa I. E. Animitsa
Российский электрохимический журнал
https://doi.org/10.1134/S1023193518120108
Abstract / Full Text

The effect of F--doping on the transport properties of perovskite-type complex oxides based on barium—calcium niobate Ba2CaNbO5.5 is analyzed. It is found that, regardless of the mechanism of introducing fluoride ions into the oxygen sublattice, the О2– and Н+ conductivities increase in the range of low fluoride concentrations due to an increase in the mobility of current carriers.

Author information
  • Ural Federal University Named after the First President of Russia B.N. Yeltsin, Yekaterinburg, 620002, Russia

    N. A. Tarasova & I. E. Animitsa

References
  1. Gallasso, F. and Darby, W., Ordering of the octahedrally coordinated cation position in the perovskite structure, J. Phys. Chem., 1962, vol. 66, p. 131.
  2. Bananos, N., Oxide-based protonic conductors: point defects and transport properties, Solid State Ionics, 2001, vol. 145, p. 2 65.
  3. Du, Y. and Nowick, A.S., Structural transitions and proton conduction in nonstoichiometric A3B'B''O9 perovskite–type oxides, J. Am. Ceram Soc., 1995, vol. 78, no. 11, p. 3033.
  4. Kochetova, N.A., Alyabysheva, I.V., Matveev, E.S., and Animitsa, I.E., Proton transport in perovskites Ba2InMO6 (M = Nb, Ta), Russ. J. Electrochem., 2017, vol. 53, p. 658.
  5. Iakovleva, A., Study of novel proton conductors for high temperature solid oxide cells, PhD Dissertation, 2015.
  6. Hassine, M.B., Iakovleva, A., Ashtiani, P.H., and Dezanneau, G., High resolution EDS study of Ba2Y1 + xNb1–xO6–δ sintered compounds, Proc. of 16th European Microscopy Congress, 2016, doi 10.1002/9783527808465.EMC2016.6173.10.1002/9783 527808465.EMC2016.6173
  7. Animitsa, I.E., Neiman, A.Ya., Kochetova, N.A., and Korona, D.V., Intraphase chemical diffusion of water in Ba4Ca2Nb2O11, Russ. J. Electrochem., 2006, vol. 42, p. 311.
  8. Korona, D.V., Neiman, A.Ya., Animitsa, I.E., and Sharafutdinov, A.R., Effect of humidity on conductivity of Ba4Ca2Nb2O11 phase and solid solutions based on this phase, Russ. J. Electrochem., 2009, vol. 45, p. 586.
  9. Belova, K., Baskakova, S., Argirusis, Chr., and Animitsa, I., The effect of F—doping on the conductivity of proton conductor Ba4Ca2Nb2O11, Electrochim. Acta, 2016, vol. 193, p. 63.
  10. Wang, Y., Wang, H., Liu, T., Chen, F., and Xia, C., Improving the chemical stability of BaCe0.8Sm0.2O3–δ electrolyte by Cl doping for proton-conducting solid oxide fuel cell, Electrochem. Commun., 2013, vol. 28, p. 87.
  11. Animitsa, I., Tarasova, N., and Filinkova, Ya., Electrical properties of the fluorine-doped Ba2In2O5, Solid State Ionics, 2012, vol. 207, p. 29.
  12. Tarasova, N.A., Filinkova, Ya.V., and Animitsa, I.E., Electric properties of oxyfluorides Ba2In2O5–0.5xFx with brownmillerite structure, Russ. J. Electrochem., 2013, vol. 49, p. 45.
  13. Tarasova, N.A. and Animitsa, I.E, Effect of anion doping on mobility of ionic charge carriers in solid solutions based on Ba2In2O5, Russ. J. Electrochem., 2013, vol. 49, p. 698.
  14. Animitsa, I.E., Tarasova, N.A., Denisova, T.A., and Baklanova, Ya.V., Proton state in hydrated fluoro-substituted brownmillerites Ba2In2O5–0.5yFy ∙ nH2O, J. Struct. Chem., 2016, vol. 57, p. 910.
  15. Shannon, R.D., Revised effective ionic radii and systematic studies of interatomic distances in halides and chaleogenides, Acta Crystallogr., Sect. A: Found. Crystallogr., 1976, vol. 32, p. 751.