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Corresponding Author

Bo HUANG(huangbo2k@hotmail.com)

Abstract

Solid oxide full cell(SOFC) running directly on hydrocarbon fuels has attracted much attention in recent years. In this paper, a dual-layer structure anode was fabricated by tape casting and screen printing method. The addition of a LSCM-CeO2 catalyst layer to the supported anode surface yielded better performance in ethanol fuel. The maximum power density reached 710 and 669 mW/cm2 at 850 ℃ running on hydrogen gas steam and ethanol steam,respectively. No significant degradation in performance has been observed after 216 h of cell testing when the Ni-ScSZ13 anode was exposed to the ethanol steam at 700 ℃. Very little carbon was detected on the anode, suggesting that carbon deposition was limited during cell operation. Consequently, the LSCM-CeO2 catalyst layer on the supported anode made it possible to have good stability for long-term operation in ethanol fuel due to low carbon deposition.

Keywords

electrochemical properties, carbon deposition, catalyst layer, impedance spectroscopy

Publication Date

2010-02-28

Online Available Date

2010-02-28

Revised Date

2009-06-22

Received Date

2009-06-01

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