Electrode Properties of Ba0.5Sr0.5CoyFe1-yO3-δCathode Materials for Solid Oxide Fuel Cell

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The electrode properties of Ba0.5Sr0.5CoyFe1-yO3-δ {BSCF(5/5/10y/10(1-y))} on a Ce0.8Sm0.2O1.9 electrolyte were investigated. BSCF powders were synthesized by a solid-state reaction. The electronic conductivities of BSCFs increased with increasing Co content and BSCF(5/5/8/2) showed the highest conductivity of 38 S cm-1 at 600oC. The electrode resistance was measured on symmetric cells, BSCF/Ce0.8Sm0.2O1.9/BSCF, over the temperature range from 600oC to 800oC. The electrode resistances decreased with increasing Co content and BSCF(5/5/8/2) showed the lowest electrode resistance in the whole temperature range, having an electrode resistance of 0.62  cm2 at 600oC.

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Edited by:

Kazumi Kato, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki

Pages:

49-52

Citation:

S. Asagi et al., "Electrode Properties of Ba0.5Sr0.5CoyFe1-yO3-δCathode Materials for Solid Oxide Fuel Cell", Key Engineering Materials, Vol. 388, pp. 49-52, 2009

Online since:

September 2008

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$41.00

[1] M. Sahibzada et al., Solid State Ionics, 113-115 (1998), p.285.

[2] J. P. Jiang, Solid State Ionics, 146 (2002), p.1.

[3] E. P. Murray, Solid State Ionics, 148 (2002), p.27.

[4] Z. Shao et al., Nature, 431 (2004), p.170.

[5] Seunghun Lee et al., J. Power Sources, 157 (2006), p.848.

[6] Zaoshu Duan et al., J. Power Sources, 160 (2006), p.57.

[7] Q.L. Liu et al., J. Power Sources, 161 (2006), p.123.

[8] K. T. Lee et al., J. Electrochem and Solid-State Lettters, 8(8) (2006), p. A428.

[9] R. D. Shannoon, Acta Cryst., A32 (1976), p.751.

[10] L. -W. Tai et al., Solid State Ionics, 76 (1995), p.259.

[11] L. -W. Tai et al., Solid State Ionics, 76 (1995), p.273.

[12] K. Gaur et al., J. Mat. Sci., 23 (1988), p.1725.

[13] H. Lv et al., Solid State Ionics, 177 (2006).