International Journal of Precision Engineering and Manufacturing-Green Technology

Korean Society for Precision Engineering (한국정밀공학회)
권호 표지
DOI QR코드

DOI QR Code

Effect of Sintering Process with Co3O4 on the Performance of LSCF-Based Cathodes for Solid Oxide Fuel Cells

  • Khurana, Sanchit (Department of Mechanical Engineering, University of California Merced) ;
  • Johnson, Sean (Department of Mechanical Engineering, University of California Merced) ;
  • Karimaghaloo, Alireza (Department of Mechanical Engineering, University of California Merced) ;
  • Lee, Min Hwan (Department of Mechanical Engineering, University of California Merced)
  • Received : 2017.09.11
  • Accepted : 2017.11.25
  • Published : 2018.10.01
⟨ Previous Next ⟩

Abstract

The impact of the sintering process, especially in terms of sintering temperature and sintering aid concentration, on the ohmic transport and electrode performance of $(La_{0.80}Sr_{0.20})_{0.95}CoO_{3-{\delta}}$-gadolinia-doped ceria (LSCF-GDC) cathodes is studied. The ohmic and charge-transfer kinetics exhibit a highly coupled $Co_3O_4$ concentration dependency, showing the best performances at an optimum range of 4-5 wt%. This is ascribed to small grain sizes and improved connection between particles. The addition of $Co_3O_4$ was also found to have a dominant impact on charge-transfer kinetics in the LSCF-GDC composite layer and a moderate impact on the electronic transport in the current-collecting LSCF layer. Care should be taken to avoid a formation of excessive thermal stresses between layers when adding $Co_3O_4$.

Keywords

References

  1. Weber, A. and Ivers-Tiffee, E., "Materials and Concepts for Solid Oxide Fuel Cells (SOFCs) in Stationary and Mobile Applications," Journal of Power Sources, Vol. 127, Nos. 1-2, pp. 273-283, 2004. https://doi.org/10.1016/j.jpowsour.2003.09.024
  2. Shao, Z. and Haile, S. M., "A High-Performance Cathode for the Next Generation of Solid-Oxide Fuel Cells," in: Materials for Sustainable Energy, Dusastre, V., (Ed.), World Scientific, pp. 255-258, 2011.
  3. Gao, Z., Mogni, L. V., Miller, E. C., Railsback, J. G., and Barnett, S. A., "A Perspective on Low-Temperature Solid Oxide Fuel Cells," Energy & Environmental Science, Vol. 9, No. 5, pp. 1602-1644, 2016. https://doi.org/10.1039/C5EE03858H
  4. Brett, D. J., Atkinson, A., Brandon, N. P., and Skinner, S. J., "Intermediate Temperature Solid Oxide Fuel Cells," Chemical Society Reviews, Vol. 37, No. 8, pp. 1568-1578, 2008. https://doi.org/10.1039/b612060c
  5. Tucker, M. C., "Progress in Metal-Supported Solid Oxide Fuel Cells: A Review," Journal of Power Sources, Vol. 195, No. 15, pp. 4570-4582, 2010. https://doi.org/10.1016/j.jpowsour.2010.02.035
  6. Wachsman, E. D. and Lee, K. T., "Lowering the Temperature of Solid Oxide Fuel Cells," Science, Vol. 334, No. 6058, pp. 935-939, 2011. https://doi.org/10.1126/science.1204090
  7. Ji, S., Ha, J., Park, T., Kim, Y., Koo, B., et al., "Substrate-Dependent Growth of Nanothin Film Solid Oxide Fuel Cells Toward Cost- Effective Nanostructuring," International Journal of Precision Engineering and Manufacturing-Green Technology, Vol. 3, No. 1, pp. 35-39, 2016. https://doi.org/10.1007/s40684-016-0005-7
  8. Gostovic, D., Smith, Z. J., Kundinger, D., Jones, K., and Wachsman, E., "Three-Dimensional Reconstruction of Porous LSCF Cathodes," Electrochemical and Solid-State Letters, Vol. 10, No. 12, pp. B214-B217, 2007. https://doi.org/10.1149/1.2794672
  9. Leone, P., Santarelli, M., Asinari, P., Calì, M., and Borchiellini, R., "Experimental Investigations of the Microscopic Features and Polarization Limiting Factors of Planar SOFCs with LSM and LSCF Cathodes," Journal of Power Sources, Vol. 177, No. 1, pp. 111-122, 2008. https://doi.org/10.1016/j.jpowsour.2007.11.021
  10. Murray, E. P., Sever, M., and Barnett, S., "Electrochemical Performance of $(La,Sr)(Co,Fe)O_3-(Ce,Gd)O_3$ Composite Cathodes," Solid State Ionics, Vol. 148, Nos. 1-2, pp. 27-34, 2002. https://doi.org/10.1016/S0167-2738(02)00102-9
  11. Steele, B. C. and Bae, J.-M., "Properties of $La_{0.6}Sr_{0.4}Co_{0.2}Fe_{0.8}O_{3-x}$ (LSCF) Double Layer Cathodes on Gadolinium-Doped Cerium Oxide (CGO) Electrolytes: Ii. Role of Oxygen Exchange and Diffusion," Solid State Ionics, Vol. 106, Nos. 3-4, pp. 255-261, 1998. https://doi.org/10.1016/S0167-2738(97)00430-X
  12. Armstrong, E., Duncan, K., Oh, D., Weaver, J., and Wachsman, E., "Determination of Surface Exchange Coefficients of LSM, LSCF, YSZ, GDC Constituent Materials in Composite SOFC Cathodes," Journal of The Electrochemical Society, Vol. 158, No. 5, pp. B492-B499, 2011. https://doi.org/10.1149/1.3555122
  13. Yu, W., Lee, Y., Lee, Y. H., Cho, G. Y., Park, T., et al., "Performance Enhancement of Thin Film LSCF Cathodes by Gold Current Collecting Layer," International Journal of Precision Engineering and Manufacturing-Green Technology, Vol. 3, No. 2, pp. 185-188, 2016. https://doi.org/10.1007/s40684-016-0024-4
  14. Leng, Y., Chan, S. H., and Liu, Q., "Development of LSCF-GDC Composite Cathodes for Low-Temperature Solid Oxide Fuel Cells with Thin Film GDC Electrolyte," International Journal of Hydrogen Energy, Vol. 33, No. 14, pp. 3808-3817, 2008. https://doi.org/10.1016/j.ijhydene.2008.04.034
  15. Choi, H., Cho, G. Y., and Cha, S.-W., "Fabrication and Characterization of Anode Supported YSZ/GDC Bilayer Electrolyte SOFC Using Dry Press Process," International Journal of Precision Engineering and Manufacturing-Green Technology, Vol. 1, No. 2, pp. 95-99, 2014. https://doi.org/10.1007/s40684-014-0013-4
  16. Simner, S. P., Anderson, M. D., Coleman, J. E., and Stevenson, J. W., "Performance of a Novel $La(Sr)Fe(Co)O_3-Ag$ SOFC Cathode," Journal of Power Sources, Vol. 161, No. 1, pp. 115-122, 2006. https://doi.org/10.1016/j.jpowsour.2006.04.103
  17. Qiang, F., Sun, K., Zhang, N., Le, S., Zhu, X., et al., "Optimization on Fabrication and Performance of A-Site-Deficient $La_{0.58}Sr_{0.4}Co_{0.2}Fe_{0.8}O_{3-{\delta}}$ Cathode for SOFC," Journal of Solid State Electrochemistry, Vol. 13, No. 3, pp. 455-467, 2009. https://doi.org/10.1007/s10008-008-0581-8
  18. Jiang, S., "Issues on Development of $(La,Sr)MnO_3$ Cathode for Solid Oxide Fuel Cells," Journal of Power Sources, Vol. 124, No. 2, pp. 390-402, 2003. https://doi.org/10.1016/S0378-7753(03)00814-0
  19. Gong, Y., Ji, W., Zhang, L., Xie, B., and Wang, H., "Performance of $(La,Sr)MnO_3$ Cathode Based Solid Oxide Fuel Cells: Effect of Bismuth Oxide Sintering Aid in Silver Paste Cathode Current Collector," Journal of Power Sources, Vol. 196, No. 3, pp. 928-934, 2011. https://doi.org/10.1016/j.jpowsour.2010.08.104
  20. Liu, W., Zhao, Z., Tu, B., Cui, D., Ou, D., et al., "$TiO_2$-Modified $La_{0.6}Sr_{0.4}Co_{0.2}Fe_{0.8}O_{3-{\delta}}$ Cathode for Intermediate Temperature Solid Oxide Fuel Cells," Chinese Journal of Catalysis, Vol. 36, No. 4, pp. 502-508, 2015. https://doi.org/10.1016/S1872-2067(14)60235-7
  21. Chen, D., Wang, F., and Shao, Z., "Interlayer-Free Electrodes for It- Sofcs by Applying $Co_3O_4$ as Sintering Aid," International Journal of Hydrogen Energy, Vol. 37, No. 16, pp. 11946-11954, 2012. https://doi.org/10.1016/j.ijhydene.2012.05.053
  22. Dusastre, V. and Kilner, J., "Optimisation of Composite Cathodes for Intermediate Temperature SOFC Applications," Solid State Ionics, Vol. 126, Nos. 1-2, pp. 163-174, 1999. https://doi.org/10.1016/S0167-2738(99)00108-3
  23. Kleinlogel, C. and Gauckler, L., "Mixed Electronic-Ionic Conductivity of Cobalt Doped Cerium Gadolinium Oxide," Journal of Electroceramics, Vol. 5, No. 3, pp. 231-243, 2000. https://doi.org/10.1023/A:1026583629995
  24. Qi, X., Lin, Y., and Swartz, S., "Electric Transport and Oxygen Permeation Properties of Lanthanum Cobaltite Membranes Synthesized by Different Methods," Industrial & Engineering Chemistry Research, Vol. 39, No. 3, pp. 646-653, 2000. https://doi.org/10.1021/ie990675e
  25. Stevenson, J., Armstrong, T., Carneim, R., Pederson, L. R., and Weber, W., "Electrochemical Properties of Mixed Conducting Perovskites $La_{(1-x)}M_{(x)}Co_{(1-y)}Fe_{(y)}O_{({3-{\delta})}$ (M=Sr,Ba,Ca)," Journal of the Electrochemical Society, Vol. 143, No. 9, pp. 2722-2729, 1996. https://doi.org/10.1149/1.1837098
  26. Zhang, H. and Yang, W., "Highly Efficient Electrocatalysts for Oxygen Reduction Reaction," Chemical Communications, No. 41, pp. 4215-4217, 2007.
  27. Gaur, A. and Sglavo, V. M., "Flash Sintering of $(La, Sr)(Co, Fe)O_3$ -Gd-Doped $CeO_2$ Composite," Journal of the American Ceramic Society, Vol. 98, No. 6, pp. 1747-1752, 2015. https://doi.org/10.1111/jace.13532

Cited by

  1. Diffusion of colloidal particles in model porous media vol.103, pp.2, 2018, https://doi.org/10.1103/physreve.103.022608