Fabrication of an Anode-Supported Sofc with a Sol-Gel Coating Method for a Mixed-Gas Fuel Cell

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An anode-supported type solid oxide fuel cell (SOFC) is a promising structure resulting in a very high performance because it consists of a very thin electrolyte. In the preliminary stage, we have succeeded in the fabrication of Samaria-Doped Ceria (SDC) thin film on a porous Ni-Al substrate using a sol-gel coating technique. The thin electrolyte film binds the substrate well and a single cell made with the SDC thin-film electrolyte and porous LSM cathode exhibited a good performance in a mixed-gas condition, even at intermediate temperatures. The single cell, consisting of 20 µm thin SDC electrolytes, the porous Ni-Al anode substrate, and a LSM cathode, exhibited an open circuit voltage of 0.82V and a maximum power density of 0.31 W.cm-2 at 700°C with humidified methane and air mixtures. This cell also generated an open circuit voltage of about 1.1V and a maximum power density of 0.34 W.cm-2 at 600°C with humidified hydrogen as the fuel and air as the oxidant.

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Periodical:

Key Engineering Materials (Volumes 277-279)

Edited by:

Kwang Hwa Chung, Yong Hyeon Shin, Sue-Nie Park, Hyun Sook Cho, Soon-Ae Yoo, Byung Joo Min, Hyo-Suk Lim and Kyung Hwa Yoo

Pages:

455-461

Citation:

N. X. P. Vo et al., "Fabrication of an Anode-Supported Sofc with a Sol-Gel Coating Method for a Mixed-Gas Fuel Cell", Key Engineering Materials, Vols. 277-279, pp. 455-461, 2005

Online since:

January 2005

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$41.00

[1] V. Dusastre and J.A. Kilner: Solid State Ionics 126 (1999), p.163.

[2] T. Tsai and S. A. Barnett: J. Electrochem. Soc. 142, (1995), p.3084.

[3] K. Eguchi, T. Setoguchi, T. Inoue, and M. Arai: Solid State Ionics 52 (1992), p.165.

[4] H. Uchida, H. Suzuki, M. Watanabe: J. Electrochem. Soc. 145 (1998), p.615.

[5] T. Hibino, A. Hashimoto, T. Inoue, J. Tokuno, S. Yoshida, and M. Sano: Science Vol. 288 (2000), p. (2031).

[6] K. Asano, T. Hibino and H. Iwahara: J. Electrochem. Soc. 142 Vol. 10 (1995), p.3241.

[7] A.O. Isenberg: Solid State Ionics 3/4 (1981), p.431.

[8] A. Negishi, K. Nozaki and T. Ozawa: Solid State Ionics 3/4 (1981), p.443.

[9] T. Setoguchi, M. Sawano, K. Eguchi and H. Arai: Solid State Ionics 40/41 (1990), p.502.

[10] T.W. Kueper, S.J. Visco and L.C. De Jonghe: Solid State Ionics 52 (1992), p.251.

[11] S.J. Visco: 5th Int. Sym. On SOFCs, Aechen, Germany, June 2-5 (1997).

[12] S.P. Yoon, J. Han, S.W. Nam, T. -H. Lim, I. -H. Oh, S. -A. Hong, Y. -S. Yoo and H.C. Lim: J. Power Sources 106 (2002), p.160.

[13] J. E. Bauerle, J. Phys. Chem. Solids 30 (1969), P. 2657.

[14] S.P. Yoon, S.W. Nam, S. -G. Kim, S. -A. Hong, and S. -H Hyun: J. Power Sources 115 (2003), p.27.