Micro-Tubular Solid Oxide Fuel Cell with Asymmetric Structure Anode and La_0.6Sr_0.4Co_0.8Cu_0.2O_3−δ Perovskite Cathode

Abstract:

Micro-tubular solid oxide fuel cell (SOFC) has been fabricated with NiO-YSZ hollow fiber as anode support and La_0.6Sr_0.4Co_0.8Cu_0.2O_3−δ-Sm_0.2Ce_0.8O_1.9 (LSCCu-SDC) composite cathode. The NiO-YSZ hollow fiber anode was prepared by the immersion-induced phase inversion technique and shows a special asymmetrical structure with porous sponge-like structure in the middle and finger-like structure on the inner and outer side of the hollow fiber. A thin and dense electrolyte membrane (about 12μm) was deposited on the anode by a vacuum-assisted dip-coating process. The performance of the as-prepared hollow fiber SOFC (HF-SOFC) was tested at 600-800°C with humidified H₂ as fuel and ambient air as the oxidant. The peak power densities of 531.1, 362.5 and 214.6mWcm^-2 can be obtained at 800, 700 and 600°C, respectively. The good performance at intermediate temperature (IT) indicates promising applications as power sources for portable devices for the prepared YSZ-based micro-tubular SOFCs with LSCCu-SDC composite cathode.

• Periodical: Advanced Materials Research (Volumes 197-198)
• Pages: 672-676
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.197-198.672
• Online since: February 2011
• Authors: Jian Er Zhou, Xiao Zhen Zhang, Yong Qing Wang, Bin Lin, Xue Bing Hu, Guang Yao Meng, Xing Qin Liu
• Keywords: Electrochemical Performance, Hollow Fiber, Phase Inversion, Solid Oxide Fuel Cell (SOFC)

References

[1] L. Zhao, B. He, X. Zhang, G. Meng and X. Liu: J. Power Sources vol. 195 (2010), p.1859.

[2] T. Suzuki, Z. Hasan, Y. Funahashi, T. Yamaguchi, Y. Fujishiro and M. Awano: Science vol. 325 (2009), p.852.

[3] N. Akhtara, S.P. Decent, D. Loghin and K. Kendall: J. Power Sources vol. 193 (2009), p.39.

[4] P. Sarkar, L. Yamarte, H. Rho and L. Johanson: Int. J. Appl. Ceram. Technol. Vol. 4 (2007), p.103.

[5] C. Yang, W. Li, S. Zhang, L. Bi, C. Chen and W. Liu: J. Power Sources vol. 187 (2009), p.90.

[6] J. Ding and J. Liu: Solid State Ionics vol. 179 (2008), p.1246.

[7] S.C. singhal and K. Kendall: High temperature Solid oxide fuel cells: Fundamentals, design and applications (Elsevier Limited, New York, 2003).

[8] B. Lin, Y. Ling, X. Zhang, Y. Jiang, L. Zhao, X. Liu and G. Meng: J. Power Sources vol. 195 (2010), p.1624.

[9] N. Droushiotis, U. Doraswami, K. Kanawka, G.H. Kelsall and K. Li: Solid State Ionics vol. 180 (2009), p.1091.

DOI: 10.1016/j.ssi.2009.04.004

[10] N. Yang, X. Tan and Z. Ma: J. Power Sources vol. 183 (2008), p.14.

[11] X. Zhang, B. Lin, Y. Ling, Y. Dong, D. Fang, G. Meng and X. Liu: J. Alloys Compd. Vol. 494 (2010), p.366.

[12] T. Suzuki, T. Yamaguchi, Y. Fujishiro and M. Awano: J. Power Sources vol. 163 (2007), p.737.

[13] D. Cui, L. Liu, Y. Dong and M. Cheng: J. Power Sources vol. 174 (2007), p.246.