کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10568049 | 973362 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Stabilisation of composite LSFCO-CGO based anodes for methane oxidation in solid oxide fuel cells
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Stabilisation of composite LSFCO-CGO based anodes for methane oxidation in solid oxide fuel cells Stabilisation of composite LSFCO-CGO based anodes for methane oxidation in solid oxide fuel cells](/preview/png/10568049.png)
چکیده انگلیسی
A La0.6Sr0.4Fe0.8Co0.2O3-Ce0.8Gd0.2O1.9 (LSFCO-CGO) composite anode material was investigated for the direct electrochemical oxidation of methane in intermediate temperature solid oxide fuel cells (IT-SOFCs). A maximum power density of 0.17 W cmâ2 at 800 °C was obtained with a methane-fed ceria electrolyte-supported SOFC. A progressive increase of performance was recorded during 140 h operation with dry methane. The anode did not show any structure degradation after the electrochemical testing. Furthermore, no formation of carbon deposits was detected by electron microscopy and elemental analysis. Alternatively, this perovskite material showed significant chemical and structural modifications after high temperature treatment in a dry methane stream in a packed-bed reactor. It is derived that the continuous supply of mobile oxygen anions from the electrolyte to the LSFCO anode, promoted by the mixed conductivity of CGO electrolyte at 800 °C, stabilises the perovskite structure near the surface under SOFC operation and open circuit conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 145, Issue 1, 4 July 2005, Pages 68-73
Journal: Journal of Power Sources - Volume 145, Issue 1, 4 July 2005, Pages 68-73
نویسندگان
A. Sin, E. Kopnin, Y. Dubitsky, A. Zaopo, A.S. Aricò, L.R. Gullo, D. La Rosa, V. Antonucci,