Materials Science

, Volume 49, Issue 6, pp 805–811 | Cite as

Structural Transformations in the Nio-Containing Anode of Ceramic Fuel Cells in the Course of its Reduction and Oxidation

  • V. Ya. Podhurs’ka
  • B. D. Vasyliv
  • O. P. Ostash
  • O. D. Vasyl’ev
  • E. M. Brodnikovs’kyi

We study the role of structural transformations in the nickel phase under the action of reducing and oxidizing high-temperature (600°С) gaseous atmospheres in the formation of the levels of strength and electric conductivity of NiO-containing materials for the anodes-substrates of ceramic fuel cells. By using the cyclic redox treatment (redox cycling) of NiO oxide, which includes the stages of heating in a vacuum up to a fixed temperature (600°С), reduction of the heated material in a Ar–5 vol.% H2 gaseous mixture, degassing, and oxidation in air at the same temperature, we managed to form a structure guaranteeing the improved physicomechanical characteristics of YSZ–Ni and ScCeSZ–Ni composites.


ceramic fuel cell anode-substrate NiO-containing ceramics redox treatment electric conductivity strength 


  1. 1.
    D. Sarantaridis and A. Atkinson, “Redox cycling of Ni-based solid oxide fuel cell anodes: a review,” Fuel Cells, No. 3, 246–258 (2007).CrossRefGoogle Scholar
  2. 2.
    M. Ettler, H. Timmermann, J. Malzbender, et al., “Durability of Ni anodes during reoxidation cycles,” J. Power Sources, 195, 5452–5467 (2010).CrossRefGoogle Scholar
  3. 3.
    J. W. Fergus, R. Hui, X. Li, et al. (editors), Solid Oxide Fuel Cells. Materials Properties and Performance, CRC Press (2009).Google Scholar
  4. 4.
    D. Waldbillig, A. Wood, and D. G. Ivey, “Electrochemical and microstructural characterization of the redox tolerance of solid oxide fuel cell anodes,” J. Power Sources, 145, 206–215 (2005).CrossRefGoogle Scholar
  5. 5.
    O. P. Ostash, B. D. Vasyliv, V. Ya. Podhurs’ka, et al., “Optimization of the properties of 10Sc1CeSZ–NiO composite by the redox treatment,” Fiz.-Khim. Mekh. Mater., 46, No. 5, 76–81 (2010); English translation: Mater. Sci., 46, No. 5, 653–658 (2011)).Google Scholar
  6. 6.
    B. D. Vasyliv, V. Ya. Podhurs’ka, O. P. Ostash, et al., “Influence of reducing and oxidizing media on the physicomechanical properties of ScCeSZ–NiO and YSZ–NiO ceramics,” Fiz.-Khim. Mekh. Mater., 49, No. 2, 5–13 (2013).Google Scholar
  7. 7.
    A. Wood and D. Waldbillig, Preconditioning Treatment to Enhance Redox Tolerance of Solid Oxide Fuel Cells, US Patent No. 8029946, October 4, 2011.Google Scholar
  8. 8.
    B. D. Vasyliv, O. P. Ostash, V. Ya. Podhurs’ka, and O. D. Vasyl’ev, A Procedure of Treatment of NiO-Containing Anodes of Solid Oxide Fuel Cells, Patent of Ukraine No. 78992, Publ. on 10.04.13, Bull. No. 7 (2013).Google Scholar
  9. 9.
    V. Podhurska and B. Vasyliv, “Influence of NiO reduction on microstructure and properties of porous Ni–ZrO2 substrates,” in: Proc. Int. Conf. Oxide Mater. Electronic Eng. (ОМЕE-2012) (Lviv, Sept. 3–7, 2012), pp. 293–294.Google Scholar
  10. 10.
    E. Brodnikovs’kyi, B. Vasyliv, O. Ostash, and O. Vasyl’ev, “Mechanical behavior of Ni–ZrO2 anodes of ceramic fuel cells,” in: V. V. Panasyuk (editor), Fracture Mechanics of Materials and Strength of Structures [in Ukrainian], Karpenko Physicomechanical Institute, Ukrainian National Academy of Sciences, Lviv (2009), pp. 515–520.Google Scholar
  11. 11.
    B. D. Vasyliv, “A procedure for the investigation of mechanical and physical properties of ceramics under the conditions of biaxial bending of a disk specimen according to the ring–ring scheme,” Fiz.-Khim. Mekh. Mater., 45, No. 4, 89–92 (2009); English translation: Mater. Sci., 45, No. 4, 571–575 (2009).Google Scholar
  12. 12.
    M. Radovic and E. Lara-Curzio, “Mechanical properties of tape cast nickel-based anode materials for solid oxide fuel cells before and after reduction in hydrogen,” Acta Mater., 52, 5747–5756 (2004).CrossRefGoogle Scholar
  13. 13.
    Y. Wang, M. E. Walter, K. Sabolsky, et al., “Effects of powder sizes and reduction parameters on the strength of Ni–YSZ anodes,” Solid State Ionics, 177, 1517–1527 (2006).CrossRefGoogle Scholar
  14. 14.
    L. J. van der Pauw, “A method of measuring specific resistivity and Hall effect of discs of arbitrary shape,” Philips Res. Reports, 13, 1–9 (1958).Google Scholar
  15. 15.
    R. M. C. Clemmer and S. F. Corbin, “The influence of pore and Ni morphology on the electrical conductivity of porous Ni/YSZ composite anodes for use in solid oxide fuel cell applications,” Solid State Ionics, 180, 721–730 (2009).CrossRefGoogle Scholar
  16. 16.
    M. Ettler, G. Blaβ, and N. H. Menzler, “Characterization of Ni–YSZ-cermets with respect to redox stability,” Fuel Cells, No. 5, 349–355 (2007).CrossRefGoogle Scholar
  17. 17.
    Y. Zhang, B. Liu, B. Tu, et al., “Understanding of redox behavior of Ni–YSZ cermets,” Solid State Ionics, 180, 1580–1586 (2009).CrossRefGoogle Scholar
  18. 18.
    A. Faes, A. Nakajo, A. Hessler-Wyser, et al., “Redox study of anode-supported solid oxide fuel cell,” J. Power Sources, 193, 55–64 (2009).CrossRefGoogle Scholar
  19. 19.
    B. D. Vasyliv, “Improvement of the electric conductivity of the material of anode in a fuel cell by the cyclic redox thermal treatment,” Fiz.-Khim. Mekh. Mater., 46, No. 2, 117–120 (2010); English translation: Mater. Sci., 46, No. 2, 260–264 (2010).Google Scholar
  20. 20.
    J. H. Yu, G. W. Park, S. Lee, and S. K. Woo, “Microstructural effects on the electrical and mechanical properties of Ni–YSZ cermet for SOFC anode,” J. Power Sources, 163, 926–932 (2007).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • V. Ya. Podhurs’ka
    • 1
  • B. D. Vasyliv
    • 1
  • O. P. Ostash
    • 1
  • O. D. Vasyl’ev
    • 2
  • E. M. Brodnikovs’kyi
    • 2
  1. 1.Karpenko Physicomechanical InstituteUkrainian National Academy of SciencesLvivUkraine
  2. 2.Frantsevych Institute for Problems in Materials ScienceUkrainian National Academy of SciencesKyivUkraine

Personalised recommendations