Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지
DOI QR코드

DOI QR Code

An SOFC Cathode Composed of LaNi0.6Fe0.4O3 and Ce(Ln)O2 (Ln=Sm, Gd, Pr)

  • Published : 2008.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

We fabricated single cells with a cathode consisting of a $LaNi_{0.6}Fe_{0.4}O_3-Ce_{0.8}Sm_{0.2}O_{1.9}$ composite (LNF-S20DC composite) active layer and an LNF current collecting layer on a ${0.89ZrO_2}-{0.10Sc_2}{O_3}-0.01{Al_2}{O_3}$ electrolyte sheet. The cathode layers were prepared by the screen-printing method. The cathode properties of these cells were measured by the AC impedance method at $800^{\circ}C$. The cathodes with the ceria-LNF composite active layer exhibited high power performance prior to current loading. We investigated the influence of the mixture ratio of LNF and S20DC on the cathodes properties. The Sm in the ceria particles of the composite cathode was substituted with other rare-earth elements. Cathodes with Pr and Gd co-doped ceria in the active layer provided the better performance than those with Sm- or Gd-doped ceria.

Keywords

References

  1. N. Minh, "Ceramic Fuel Cells," J. Am. Ceram. Soc., 76, 563-88 (1993) https://doi.org/10.1111/j.1151-2916.1993.tb03645.x
  2. R. Diethelm, M. Schmidt, K. Honegger, and E. Batawi, "Status of the Sulzer Hexis product development," Proc. 6th Int. Symp. SOFC, Vol. 99-19, The Electrochemical Society Inc., 199 60-7 (1999)
  3. T. Ishii, "Structural Phase Transition and Ionic Conductivity in $0.88ZrO_2-(0.12-x) Sc_2O_3-xAl_2O_3$," Solid State Ionics, 78 333-38 (1995) https://doi.org/10.1016/0167-2738(95)00118-P
  4. H. Orui, K. Nozawa, K. Watanabe, S. Sugita, R. Chiba, T. Komatsu, H. Arai, and M. Arakawa, "Development of Practical Size Anode-Supported Solid Oxide Fuel Cells with Multilayer Anode Structures," J. Electrochem. Soc., 155 B1110-16 (2008) https://doi.org/10.1149/1.2969942
  5. R. Chiba, F. Yoshimura, and Y. Sakurai, "An Investigation of $LaNi_{1-x} Fe_xO_3 $ as a Cathode Material for Solid Oxide Fuel Cells," Solid State Ionics, 124 281-88 (1999) https://doi.org/10.1016/S0167-2738(99)00222-2
  6. R. Chiba, F. Yoshimura, and Y. Sakurai, "Properties of $La_{1-y}Sr_yNi_{1-x}Fe_xO_3$ as a Cathode Material for a Low-temperature Operating SOFC," Solid State Ionics, 152-153, 575-82 (2002) https://doi.org/10.1016/S0167-2738(02)00374-0
  7. H. Orui, K. Watanabe, R. Chiba, and M. Arakawa, "Application of LaNi(Fe)$O_3$ as SOFC Cathode," J. Electrochem. Soc., 159 [9] A1412-17 (2004)
  8. S. Sugita, H. Arai, Y. Yoshida, H. Orui, and M. Arakawa, "Anode-supported Planar-type SOFC Development at NTT," J. Electrochem. Soc. Trans., 5 [1] 491-96 (2007)
  9. H. Orui, K. Nozawa, R. Chiba, T. Komatsu, K. Watanabe, S. Sugita, H. Arai, and M. Arakawa, "Development of Anode Supported Solid Oxide Fuel Cells using LaNi(Fe)O3 for Cathodes," J. Electrochem. Soc. Trans., 7 [1] 255-61 (2007)
  10. T. Komatsu, H. Arai, R. Chiba, K. Nozawa, M. Arakawa, and K. Sato, "Cr Poisoning Suppression in Solid Oxide Fuel Cells Using LaNi(Fe)$O_3$ Electrodes," Electrochem. and Solid-State Lett., 9-12 [1] A9 (2006)
  11. T. Komatsu, R. Chiba, H. Arai, and K. Sato, "Chemical Compatibility and Electrochemical Property of Intermediate-temperature SOFC Cathodes Under Cr Poisoning Condition," J. Power Sources, 176 132-37 (2008) https://doi.org/10.1016/j.jpowsour.2007.10.068
  12. R. Chiba, T. Komatsu, Y. Tabata, H. Orui, K. Nozawa, H. Arai, and M. Arakawa, "Property Change of a $LaNi_{0.6}Fe_{0.4}O_3$ Cathode in the Initial Current Loading Process and the Influence of a Ceria Interlayer," Solid State Ionics, 178 1701-09 (2008) https://doi.org/10.1016/j.ssi.2007.11.002
  13. A. Weber, R. Manner, and E. Ivers-Tiffee, "Interaction between Microstructure and Electical Properties of Screen Printed Cathodes in SOFC Single Cells," Denki Kagaku Oyobi Kogyo Butsuri Kagaku, 64 582-89 (1996)
  14. E. Ivers-Tiffee, A. Weber, K. Schmid, and V. Krebs, "Macroscale Modeling of Cathode Formation in SOFC," Solid State Ionics, 174 223-32 (2004) https://doi.org/10.1016/j.ssi.2004.05.031
  15. R. Chiba, H. Orui, T. Komatsu, Y. Tabata, K. Nozawa, M. Arakawa, K. Sato, and H. Arai, "$LaNi_{0.6}Fe_{0.4}O_3$-Ceria Composite Cathode for SOFCs Operating at Intermediate Temperatures," J. Electrochem. Soc., 155 B575-80 (2008) https://doi.org/10.1149/1.2901872
  16. A. Mai, V. A. Haanapple, S. Uhlenbruck, F. Tietz, and D. Stover, "Ferrite-based Perovskites as Cathode Materials for Anode-supported Solid Oxide Fuel Cells Part I. Variation of Composition," Solid State Ionics, 176 1341-50 (2005) https://doi.org/10.1016/j.ssi.2005.03.009
  17. Y. Matsuzaki and I. Yasuda, "Electrochemical Properties of Reduced-temperature SOFCs with Mixed Ionic-electronic Conductors in Electrodes and/or Interlayers," Solid State Ionics, 152-153, 463-68 (2002) https://doi.org/10.1016/S0167-2738(02)00373-9
  18. S. Lübke and H.-D. Wiemhöfer, "Electronic Conductivity of Gd-doped Ceria with Additional Pr-doping," Solid State Ionics, 117 229-43 (1999) https://doi.org/10.1016/S0167-2738(98)00408-1
  19. R. Chiba, F. Yoshimura, and Y. Sakurai, "$LaNi_{1−x}Fe_xO_3$ Cathode Material for SOFC Operating at a Reduced Temperature," Proc. of the Sixth Int. Symp. Solid Oxide Fuel Cells, Vol. 99-19, The Electrochemical Society Inc., 199, p. 453-62 (1999)
  20. Z. Liu, J. S. Wainright, W. Huang, and R. F. Savinell, "Positioning the Reference Electrode in Proton Exchange Membrane Fuel Cells: Calculations of Primary and Secondary Current Distribution," Electrochimica Acta, 49 923-35 (2004) https://doi.org/10.1016/j.electacta.2003.10.004
  21. J. Winkler, P. V. Hendriksen, N. Bonanos, and M. Mogensen, "Geometric Requirements of Solid Electrolyte Cells with a Reference Electrode," J. Electrochem. Soc., 155 [4] 1184-92 (1988)
  22. H. Arai, R. Chiba, T. Komatsu, H. Orui, S. Sugita, Y. Tabata, K. Nozawa, K. Watanabe, M. Arakawa, and K. Sato, "Reactivity of $ LaNi_{0.6}Fe_{0.4}O_3 $ with Samaria Doped Ceria," J. Fuel Cell Technology, 5 031204-1- 031204-5 (2008) https://doi.org/10.1115/1.2927765

Cited by

  1. Synthesis of LaNi0,6Fe0,4O3-δ (LNF64) by Pechini Method for Use as Cathode in SOFC´S vol.805, pp.1662-9752, 2014, https://doi.org/10.4028/www.scientific.net/MSF.805.513