Characterization and Electrochemical Performance of Composite BSCF Cathode for Intermediate-temperature Solid Oxide Fuel Cell

  • Kim, Yu-Mi (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST)) ;
  • Kim-Lohsoontorn, Pattaraporn (Department of Chemical Engineering, Mahidol University) ;
  • Bae, Joong-Myeon (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST))
  • Received : 2011.01.31
  • Accepted : 2011.02.14
  • Published : 2011.03.31


The composite barium strontium cobalt ferrite (BSCF) cathodes were investigated in the intermediate temperature range of solid oxide fuel cells (SOFCs). The characteristics and electrochemical performances of composited BSCF/samarium doped ceria (SDC); BSCF/gadolinium doped ceria (GDC); and BSCF/SDC/GDC were compared to single BSCF cathode. The BSCF used in this study were synthesized using glycine nitrate process and mechanically mixing was used to fabricate a composite cathode. Using a composite form, the thermal expansion coefficient (TEC) could be reduced and BSCF/SDC/GDC exhibited the lowest TEC value at $18.95{\times}10^{-6}K^{-1}$. The electrochemical performance from half cells and single cells exhibited nearly the same trend. All the composite cathodes gave higher electrochemical performance than the single BSCF cathode (0.22 $Wcm^{-2}$); however, when two kinds of electrolyte were used (BSCF/SDC/GDC, 0.36$Wcm^{-2}$), the electrochemical performance was lower than when the BSCF/SDC (0.45 $Wcm^{-2}$) or BSCF/GDC (0.45 $Wcm^{-2}$) was applied as cathode ($650^{\circ}C$, 97%$H_2$/3%$H_2O$ to the anode and ambient air to the cathode).


  1. R.O' Hayre, S.W. Cha, W. Colella and F.B. Prinz, Fuel Cell Fundamentals, Wiley, New York, USA ( 2006).
  2. S.C. Singhal and K. Kendall, High Temperature Solid Oxide Fuel Cells, Elsevier, Oxford, UK (2003).
  3. J.H. Kim, Y. Kim, P.A. Connor and J.T.S. Irvine, J. Bae, J. Power Sources, 194, 704 (2009).
  4. S.P. Simmer, M.D. Anderson, J.E. Coleman and J.W. Stevenson, J. Power Sources, 161, 115 (2006).
  5. J.H. Kim, M. Cassidy, J.T.S. Irvine and J. Bae, Chem. Mater., 22, 883 (2010).
  6. C. Fu, K. Sun, N. Zhang, X. Chen and D. Zhou, Electrochim. Acta, 52, 4589 (2007).
  7. Y.-M. Kim, S.-I. Pyun, J.-S. Kim and G.-J. Lee, J. Electrochem. Soc., 154, B802 (2007).
  8. Y.-M. Kim and J. Bae, ECS Transactions, 13, 137 (2008).
  9. A. Esquirol, J. Kilner and N. Brandon, Solid State Ionics, 175, 63 (2004).
  10. C.R. Xia, W. Rauch, F.L. Chen and M.L. Liu, Solid State Ionics, 149, 11 (2002).
  11. W. Zhou, R. Ran and Z. Shao, J. Power Sources, 192, 231 (2009).
  12. Y.-M. Kim, P. Kim-Lohsoontorn and J. Bae, J. Power Sources, 195, 6420 (2010).
  13. W.-X. Kao, M.-C. Lee, T.-N. Lin, C.-H. Wang and Y.-C. Chang, J. Power Sources, 195, 2220 (2010).
  14. K. Wang, R. Ran, W. Zhou, H. Gu, Z. Shao and J. Ahn, J. Power Sources, 179, 60 (2008).
  15. O. Yamamoto, Y. Takeda, R. Kanno and M. Noda, Solid State Ionics, 22, 241 (1987).
  16. H.Y. Tu, Y. Takeda, N. Imanishi and O. Yamamoto, Solid State Ionics, 117, 277 (1999).
  17. A.M. -Amesti, A. Larranaga, L.M.R. -Martínez, A.T. Aguayo, J.L. Pizarro, M.L. Nó, 509 A. Laresgoiti and M.I. Arriortua, J. Power Sources, 185, 401 (2008).
  18. Y.-M. Kim, P. Kim-Lohsoontorn, S.-W. Baek and J. Bae, Int. J. Hydrogen Energy, 36, 3138 (2011).
  19. S. McIntosh, J.F. Vente, W.G. Haije, D.H.A. Blank and H.J.M. Bouwmeester, Chem. Mater., 18, 2187 (2006).
  20. Z.P. Shao and S.M. Haile, Nature, 431, 170 (2004).

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