Intermediate-Temperature Solid Oxide Fuel Cells with Y0.25Bi0.75O1.5-Ag Cathodes

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Composites consisting of silver and yttria-stabilized bismuth oxide (YSB) were fabricated and investigated as cathodes for intermediate-temperature solid oxide fuel cells (SOFCs) with thin electrolyte films of yttria-stabilized zirconia (YSZ). The films were deposited using spin coating with YSZ suspension. Comparison of YSB-Ag and conventional La0.8Sr0.2MnO3 (LSM) based cathodes showed that the YSB-Ag composite has better electrochemical performance; Interfacial polarization resistance of YSB-Ag cathode is 0.13 Ωcm2 at 750oC. Power density of the single cell with YSB-Ag cathode was about 535 mW/cm2 at 750oC, while that with LSM-Sm0.2Ce0.8O1.9 cathode was only 329 mW/cm2.

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Periodical:

Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie

Pages:

1157-1160

Citation:

X. Y. Xu et al., "Intermediate-Temperature Solid Oxide Fuel Cells with Y0.25Bi0.75O1.5-Ag Cathodes", Materials Science Forum, Vols. 475-479, pp. 1157-1160, 2005

Online since:

January 2005

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$38.00

[1] Y. Jiang and A.V. Virkar: J. Electrochem. Soc. Vol. 148 (2001), p. A706.

[2] T. Tsai, E. Perry and S. Barnett: J. Electrochem. Soc. Vol. 144 (1997), p. L130.

[3] N. M. Sammes, G. A. Tompsett, H. Nafe and F. Aldinger: J. Eur. Ceram. Soc. Vol. 19 (1999), p.1801.

[4] X. X. Xu, C. R. Xia, S. G. Huang and D. K. Peng: Mater. Lett. in press.

[5] C. R. Xia, W. Wellborn and M.L. Liu: Elecrochem. Solid State Lett. Vol. 5 (2002), p. A217.

[6] M. L. Liu: J. Electrochem. Soc. Vol. 145 (1998), p.1421.

[7] C. R. Xia, Meilin Liu: Solid State Ionics, Vol. 144 (2001), p.249 Fig. 4 SEM micrographs for the surface sintered at 600o C.

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