کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1294339 | 973610 | 2009 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural and electrochemical characterisation of Pr0.7Ca0.3Cr1âyMnyO3âδ as symmetrical solid oxide fuel cell electrodes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A series of compounds with composition Pr0.7Ca0.3Cr1âyMnyO3âδ (y = 0.2, 0.4, 0.6, 0.8) were prepared from an alternative freeze-drying precursor method to obtain polycrystalline powders at relatively low temperature. These perovskite-type materials were tested simultaneously as both anode and cathode in a symmetrical SOFC. The effect of the ratio Mn/Cr on the structure, microstructure and electrochemical properties was studied. The performance is rather modest at low temperature and only interesting values were obtained at high temperatures. An assembled symmetrical SOFC rendered performances of 250 and 160 mW cmâ2, at 950 °C, under humidified H2 and CH4 respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 188, Issue 1, 1 March 2009, Pages 230-237
Journal: Journal of Power Sources - Volume 188, Issue 1, 1 March 2009, Pages 230-237
نویسندگان
Abdelouhad El-Himri, David Marrero-López, Juan Carlos Ruiz-Morales, Juan Peña-MartÃnez, Pedro Núñez,