Abstract
In the present paper, we fabricated and tested anode-supported solid oxide fuelcell(SOFC) with gadolinium-doped(GDC) and yttriastabilized zirconia (YSZ) electrolyte. The bilayer electrolyte thin film, consisting of a 8 μm thick YSZ layer and a 40 μm thick GDC layer, was prepared by a simple dry-pressing with simple spray coating process which is cost-effective method. The two electrolyte layers were sintered 1400°C together, and no crack and delamination at the interface were observed. An open-circuit voltage of 0.91 V and a maximum power density of over 218 mW/cm2 were measured with 3% H2O-H2 as fuel and air as oxidant at 600°C. The result shows that the electronic conductivity of GDC electrolyte was blocked by the thin YSZ electrolyte functional layer.
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Choi, H., Cho, G.Y. & Cha, SW. Fabrication and characterization of anode supported YSZ/GDC bilayer electrolyte SOFC using dry press process. Int. J. of Precis. Eng. and Manuf.-Green Tech. 1, 95–99 (2014). https://doi.org/10.1007/s40684-014-0013-4
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DOI: https://doi.org/10.1007/s40684-014-0013-4