کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7723120 | 1497527 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced sintering behavior mechanism of nanocrystalline BaCe0.8Sm0.2O3âδ by Cu doping
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Nano-sized BaCe0.8Sm0.2O3âδ and Cu-doped BaCe0.8Sm0.2O3âδ proton conducting electrolyte powders are synthesized by citric-nitrate method, and then the powder properties are investigated. The synthesized BaCe0.8Sm0.2O3âδ powder acquires pure perovskite structure after heat treatment above 1100 °C, while impurity phases such as BaCO3 and Ce0.8Sm0.2O2âδ are formed below 1100 °C. The BaCe0.8Sm0.2O3âδ and Cu-doped BaCe0.8Sm0.2O3âδ showed similar powder characteristics, except the shrinkage rate. The sintering temperature for densification of the synthesized BCS are significantly reduced as much as â¼300 °C by small amount of Cu. Compared to drastic reduction in sintering temperature, the total conductivity and the activation energy of Cu doped BCS turn out to deviate negligibly from those of pure BCS.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 38, Issue 18, 18 June 2013, Pages 7423-7429
Journal: International Journal of Hydrogen Energy - Volume 38, Issue 18, 18 June 2013, Pages 7423-7429
نویسندگان
Inyu Park, Jeongin Kim, Jinyi Choi, Hunhyeong Lee, Jonghun Park, Dongwook Shin,