Films of certain oxides of rare-earth elements as the activators of platinum electrode on ZrO2 + 10 mol % Y2O3 electrolyte

A. I. KovrovaA. I. Kovrova, V. P. GorelovV. P. Gorelov
Российский электрохимический журнал
Abstract / Full Text

The characteristics of porous Pt/YSZ (ZrO2 + 10 mol % Y2O3) electrodes activated with small amounts of either oxides of rare-earth elements (REE) of the cerium subgroup (CeO2, PrO x , TbO x ) or a mixed oxide with the Сe2Tb4O11 composition by the procedure of impregnating the electrodes with ethanol solutions of REE nitrates and subsequent heating at 850°С are studied by the impedance method. The studies are carried out for those cases where the REE oxides after thermal treatment form a film on the electrolyte and also where no activator film is formed. The characteristics of films and activated electrodes are compared. Film-activated Pt/YSZ electrodes are discussed within the framework of the model of compact oxide electrodes.

Author information
  • Institute of High-Temperature Electrochemistry, Ural Division, Russian Academy of Sciences, Yekaterinburg, 620137, RussiaA. I. Kovrova & V. P. Gorelov
  1. Chen, M., Liu, T., and Lin, Z., ECS Trans., 2013, vol. 57, p. 2763.
  2. Bertei, A., Pharoah, J.G., Gawel, D.A.W., and Nicolella, C., J. Electrochem. Soc., 2014, vol. 161, p. 1243.
  3. Ramos, T., Veltze, S., Sudireddy, B.R., Jordensen, P.S., Theil Kuhn, L., and Holtappels, P., Fuel Cells, 2014, vol. 14, p. 1062.
  4. Tang, D., Han, M.-F., and Zheng, Z.-W., J. Fuel Cell Sci. Technol., 2015, vol. 12, p. 1.
  5. Kishimoto, M., Lomberg, M., Ruiz-Trejo, E., and Brandon, N.P., J. Power Sources, 2014, vol. 266, p. 291.
  6. Karpachev, S.V. and Perfil’ev, M.V., RF Patent 1840850, 2013.
  7. Kurumchin, E.Kh., Extended Abstract of Doctoral (Chem.) Dissertation, Yekaterinburg: IVTE UrO RAN, 1997.
  8. Bronin, D.I., Kuzin, B.L., Nafe, H., and Aldinger, F., Solid State Ionics, 1999, vol. 120, p. 13.
  9. Yaroslavtsev, I.Yu., Kuzin, B.L., Bronin, D.I., Vdovin, G.K., and Bogdanovich, N.M., Russ. J. Electrochem., 2009, vol. 45, p. 939.
  10. Suikovskaya, N.V., Khimicheskie metody polucheniya tonkikh prozrachnykh plenok (Chemical Methods of Synthesis of Thin Transparent Films), Leningrad: Khimiya, 1971.
  11. Vshivkova, A.I. and Gorelov, V.P., Russ. J. Electrochem., 2016, vol. 52, p. 488.
  12. Vshivkova, A.I., Gorelov, V.P., Kuz’min, A.V., Plaksin, S.V., Pankratov, A.A., and Yaroslavtseva, T.V., Inorg. Materials, 2015, vol. 51, p. 1168.
  13. Rutman, D.S., Toropov, Yu.S., Pliner, S.Yu., Neuimin, A.D., and Polezhaev, Yu.M., Vysokoogneupornye materialy iz dioksida tsirkoniya (High Temperature Materials of Zirconium Dioxide), Moscow: Metallurgiya, 1985.
  14. Shkerin, S., Russ. J. Electrochem, 2005, vol. 41, p. 787.
  15. Chebotin, V.N. and Perfil’ev, M.V., in Elektrokhimiya tverdykh elektrolitov (Electrochemistry of Solid Electrolytes), Chebotin, V.N., Ed., Moscow: Khimiya, 1978.
  16. Mizusaki, J., Amano, K., Yamauchi, Sh., and Fueki, K., Solid State Ionics, 1987, vol. 22, p. 313.
  17. Kuzin, B.L. and Komarov, M.A., Solid State Ionics, 1990, vol. 39, p. 163.
  18. Schwandt, C. and Weppner, W., J. Electrochem. Soc., 1997, vol. 144, p. 3728.
  19. Bronin, D.I., Doctoral (Chem.) Dissertation, Yekaterinburg: IVTE UrO RAN, 2007.
  20. Shuk, P. and Greenblatt, V., Solid State Ionics, 1999, vol. 116, p. 217.
  21. Wang, X., Hanson, J.C., Liu, G., and Rodriguez, J.A., J. Chem. Phys., 2004, vol. 121, p. 5435.
  22. Chen, D., Bishop, S.R., and Tuller, H.L., J. Electroceram., 2012, vol. 28, p. 62.
  23. Chiodelli, G., Flor, G., and Scagliotti, M., Solid State Ionics, 1996, vol. 91, p. 109.
  24. Okada, S., Miyoshi, Sh., and Yamaguchi, Sh., ECS Trans., 2015, vol. 68, p. 987.
  25. Inaba, H. and Tagawa, H., Solid State Ionics, 1996, vol. 83, p. 1.
  26. Thangadurai, V., Huggins, R.A., and Weppner, W., J. Solid State Electrochem., 2001, vol. 5, p. 531.