کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1464260 | 989658 | 2012 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrolyte materials for solid oxide fuel cells derived from metal complexes: Gadolinia-doped ceria
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Gadolinia doped ceria (GDC) powders with different gadolinium contents were successfully prepared by the thermal decomposition of ceria complexes. All the calcined powder samples were found to be ceria-based solid-solutions having a fluorite-type structure. The powders were cold-isostatically pressed and sintered in air at 1500 °C for 5 h to attain a sintered density of about 90% of its theoretical value. The electrical conductivity of the GDC pellets in air was studied as a function of temperature in the 225–700 °C range, by using two-probe electrochemical impedance spectroscopy measurements. The highest total conductivity (σ600 °C = 0.025 S/cm) was found for the Ce0.85Gd0.15O1.925 composition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 38, Issue 3, April 2012, Pages 2403–2409
Journal: Ceramics International - Volume 38, Issue 3, April 2012, Pages 2403–2409
نویسندگان
Chatchai Veranitisagul, Attaphon Kaewvilai, Worawat Wattanathana, Nattamon Koonsaeng, Enrico Traversa, Apirat Laobuthee,