کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1491793 992360 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A La0.6Sr0.4CoO3−δ-based electrode with high durability for intermediate temperature solid oxide fuel cells
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
A La0.6Sr0.4CoO3−δ-based electrode with high durability for intermediate temperature solid oxide fuel cells
چکیده انگلیسی

A highly stable electrode based on La0.6Sr0.4Co3−δ (LSC) was developed for intermediate temperature solid oxide fuel cells (IT-SOFCs). The electrode was prepared by impregnating LSC into a porous samaria-doped ceria (SDC, Sm0.2Ce0.8O1.9) frame, which was deposited to an SDC electrolyte using screen-printing and co-firing techniques. The electrochemical properties of the composite electrode were investigated by impedance spectroscopy. High stability upon thermal cycle was demonstrated for this composite electrode although LSC and SDC have significant difference in thermal expansion. After 20 times of 500–800 °C thermal cycles and 10 times of room-temperature-to-800 °C thermal cycles, no increase in area specific resistance (ASR) was observed for such electrodes. In addition, improved performance was achieved with the impregnated composite electrode when compared with a conventional composite electrode prepared with a screen-printing technique.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 43, Issue 2, 5 February 2008, Pages 370–376
نویسندگان
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