کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5146165 1497367 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A La0.8Sr0.2MnO3/La0.6Sr0.4Co0.2Fe0.8O3−δ core-shell structured cathode by a rapid sintering process for solid oxide fuel cells
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
A La0.8Sr0.2MnO3/La0.6Sr0.4Co0.2Fe0.8O3−δ core-shell structured cathode by a rapid sintering process for solid oxide fuel cells
چکیده انگلیسی
A La0.8Sr0.2MnO3 (LSM)/La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) core-shell structured composite cathode of solid oxide fuel cells (SOFCs) has been fabricated by wet infiltration followed by a rapid sintering (RS) process. The RS is carried out by placing LSCF infiltrated LSM electrodes directly into a preheated furnace at 800 °C for 10 min and cooling down very quickly. The heating and cooling step takes about 20 s, substantially shorter than 10 h in the case of conventional sintering (CS) process. The results indicate the formation of a continuous and almost non-porous LSCF thin film on the LSM scaffold, forming a LSCF/LSM core-shell structure. Such RS-formed infiltrated LSCF-LSM cathodes show an electrode polarization resistance of 2.1 Ω cm2 at 700 °C, substantially smaller than 88.2 Ω cm2 of pristine LSM electrode. The core-shell structured LSCF-LSM electrodes also show good operating stability at 700 °C and 600 °C over 24-40 h.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 10, 9 March 2017, Pages 7246-7251
نویسندگان
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