کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7733389 1497953 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrolyte supported solid oxide fuel cells with the super large size and thin ytterbia stabilized zirconia substrate
ترجمه فارسی عنوان
الکترولیت از سلول های سوخت اکسید جامد با ابعاد فوق العاده بزرگ و زیرکونیوم تثبیت شده یتتربیا پشتیبانی می کند
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
In this work, the (ZrO2)0.95(Yb2O3)0.05(5YbSZ) electrolyte supported SOFCs with the large area of 10 cm × 10 cm and thin substrate of about 70 μm are prepared, and the microstructures, electrochemical and anti-redox properties of the single cells are investigated systematically. The powders of 5YbSZ with the tetragonal and cubic mixed phase are synthesized by the so-called “solid-liquid composite method” at a somewhat low temperature of 1100 °C. The 5YbSZ electrolyte substrates which are prepared by the tape-casting, multilayer-lamination and sintering method showed the optimal comprehensive performances with the sintering temperature being 1500 °C. By using these electrolyte substrates, the NiO+GDC/5YbSZ/LSM+5YbSZ single cells are obtained at the co-sinter temperature of 1100 °C. The power densities of these cells can reach 0.56 W cm−2 at the output voltage of 0.7 V, and the degradation rate can attain 1.45% kh−1 under a constant current density of 0.2 A cm−2 at the temperature of 830 °C. After 11 redox cycles, no crack through the 5YbSZ electrolyte can be found in the single cells, and the electrochemical properties of the 5YbSZ electrolyte supported single cells show an acceptable degradation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 279, 1 April 2015, Pages 610-619
نویسندگان
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