کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1296862 | 973815 | 2008 | 5 صفحه PDF | دانلود رایگان |

Cermet electrodes of Ni–BaCeO.9Y0.1O2.95 and assemblies of Ni-cermet/thin film electrolyte/Ni-cermet have been elaborated from a ceramic nanopowder synthesized by flash combustion. Anode/electrolyte/anode assemblies with a fully dense electrolyte of thickness ca. 20 μm were fabricated by a co-pressing and co-sintering process followed by reduction of NiO to Ni metal. In the reduced state, the anode microstructures comprise a uniform and homogeneous distribution of Ni metal and ceramic phase with relatively high porosity and high conductivity. Impedance spectroscopy showed that there were two major rate-limiting processes for the electrode reaction and that cell performance is determined by the electrolyte resistance. A total specific resistance of 0.4 Ω cm2 at 600 °C was obtained for optimized assemblies.
Journal: Solid State Ionics - Volume 179, Issue 38, 30 November 2008, Pages 2155–2159