Micro-Tubular Solid Oxide Fuel Cell with Graded Anode and Cobalt-Free SrFe0.9Sb0.1O 3−δ Perovskite Cathode

Abstract:

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Micro-tubular solid oxide fuel cell (SOFC) has been fabricated with NiO-YSZ hollow fiber as anode support and SrFe0.9Sb0.1O 3−δ-Sm0.2Ce0.8O1.9 (SFSb-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 long and large finger-like porous structure near the lumen 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 micro-tubular SOFC was tested at 600-800°C with humidified H2 as fuel and ambient air as the oxidant. The peak power densities of 462.8, 336.6 and 201.4 mWcm-2 can be obtained at 800, 700 and 600°C, respectively. The experimental results indicate that the cobalt-free SFSb was a promising cathode material and the prepared YSZ-based micro-tubular SOFC has potential applications as power sources for portable devices.

Info:

Periodical:

Advanced Materials Research (Volumes 311-313)

Edited by:

Zhongning Guo

Pages:

2415-2419

DOI:

10.4028/www.scientific.net/AMR.311-313.2415

Citation:

X. Z. Zhang et al., "Micro-Tubular Solid Oxide Fuel Cell with Graded Anode and Cobalt-Free SrFe0.9Sb0.1O 3−δ Perovskite Cathode", Advanced Materials Research, Vols. 311-313, pp. 2415-2419, 2011

Online since:

August 2011

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$35.00

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