کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7739827 1497993 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrochemical characterization of La0.6Ca0.4Fe0.8Ni0.2O3−δ perovskite cathode for IT-SOFC
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Electrochemical characterization of La0.6Ca0.4Fe0.8Ni0.2O3−δ perovskite cathode for IT-SOFC
چکیده انگلیسی
Electrolyte supported symmetric cells featuring La0.6Ca0.4Fe0.8Ni0.2O3 (LCFN) electrodes are studied by electrochemical impedance spectroscopy. The aim is to describe the polarization losses of this mixed ionic electronic conductor electrode at various cell operating conditions for cells sintered at different temperatures. An equivalent circuit describing the cathode polarization resistances was constructed from analyzing impedance spectra recorded at different oxygen partial pressures and temperatures. Favorable oxygen reduction reaction properties are demonstrated for the LCFN cell sintered at 750 °C with a polarization resistance of 0.05 Ω cm2 at an operating temperature of 800 °C in pure oxygen.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 239, 1 October 2013, Pages 196-200
نویسندگان
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