In this paper composite supports for solid oxide fuel cells were fabricated and evaluated. Substrates were composed of stainless steel and yttria stabilized zirconia (YSZ) powders mixed in different volume ratios. Their sintering behavior (linear shrinkage, resulting porosity) and high temperature properties (oxidation resistance, electrical conductivity) were evaluated. Based on those results the best composition for composite supports was selected and fuel cells were fabricated. Thin YSZ electrolytes were deposited on one side of the support and sintered at 1350 °C in pure hydrogen, while LNF (LaNi0.6Fe0.4O3) cathodes were deposited on the top of the electrolyte and fired in situ at 800 °C. The fuel cells provided power density of about 80 mWcm-2 at 800 °C. It is worth noting that this performance was achieved without adding any catalytically active phases into composite support, while at the same time the supports exhibited relatively low porosity. This demonstrates that stainless steel can serve as an anode active material. Degradation of this fuel cell was fast (12%/h), nonetheless its performance seems interesting for further investigation.
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October 2011
This article was originally published in
Journal of Fuel Cell Science and Technology
Research Papers
Stainless Steel/Yttria Stabilized Zirconia Composite Supported Solid Oxide Fuel Cell
Sebastian Molin,
Sebastian Molin
Faculty of Electronics, Telecommunications and Informatics,
e-mail: sebastian@sofc.pl
Gdansk University of Technology
, ul. Narutowicza 11/12, 80-233 Gdansk, Poland
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Mateusz Tolczyk,
Mateusz Tolczyk
Faculty of Electronics, Telecommunications and Informatics,
Gdansk University of Technology
, ul. Narutowicza 11/12, 80-233 Gdansk, Poland
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Maria Gazda,
Maria Gazda
Faculty of Applied Physics and Mathematics,
Gdansk University of Technology
, ul. Narutowicza 11/12, 80-233 Gdansk, Poland
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Piotr Jasinski
Piotr Jasinski
Faculty of Electronics, Telecommunications and Informatics,
Gdansk University of Technology
, ul. Narutowicza 11/12, 80-233 Gdansk, Poland
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Sebastian Molin
Faculty of Electronics, Telecommunications and Informatics,
Gdansk University of Technology
, ul. Narutowicza 11/12, 80-233 Gdansk, Poland
e-mail: sebastian@sofc.pl
Mateusz Tolczyk
Faculty of Electronics, Telecommunications and Informatics,
Gdansk University of Technology
, ul. Narutowicza 11/12, 80-233 Gdansk, Poland
Maria Gazda
Faculty of Applied Physics and Mathematics,
Gdansk University of Technology
, ul. Narutowicza 11/12, 80-233 Gdansk, Poland
Piotr Jasinski
Faculty of Electronics, Telecommunications and Informatics,
Gdansk University of Technology
, ul. Narutowicza 11/12, 80-233 Gdansk, Poland
J. Fuel Cell Sci. Technol. Oct 2011, 8(5): 051019 (5 pages)
Published Online: July 5, 2011
Article history
Received:
January 28, 2011
Revised:
April 1, 2011
Online:
July 5, 2011
Published:
July 5, 2011
Citation
Molin, S., Tolczyk, M., Gazda, M., and Jasinski, P. (July 5, 2011). "Stainless Steel/Yttria Stabilized Zirconia Composite Supported Solid Oxide Fuel Cell." ASME. J. Fuel Cell Sci. Technol. October 2011; 8(5): 051019. https://doi.org/10.1115/1.4003994
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