کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5149958 | 1497896 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrical and physical properties of composite BaZr0.85Y0.15O3âd-Nd0.1Ce0.9O2âδ electrolytes for intermediate temperature-solid oxide fuel cells
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
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چکیده انگلیسی
Co-ionic (H+/O2â) electrolytes are fabricated by compositing both proton conductor (BaZr0.85Y0.15O3-δ, BZY) and oxygen-ion conductor (Nd0.1Ce0.9O2âδ, NDC) for intermediate temperature-solid oxide fuel cells (IT-SOFCs). This hybrid electrolyte decreases the electronic loss of NDC under reducing atmospheres and improves the poor sinterability of BZY. The electronic conduction caused by the NDC reduction is effectively blocked by the BZY in the composite electrolyte, thus offering both advantages of BZY with its high OCV and more rigid electro-chemo-mechanical property. In addition, the composite BZY-NDC electrolyte also exhibits great chemical stability against exposure to steam and CO2. Furthermore, the compositing of BZY and NDC improves the proton conductivity of the electrolytes, and the conductivity of composite electrolyte is higher than that of single BZY at temperatures >600 °C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 336, 30 December 2016, Pages 437-446
Journal: Journal of Power Sources - Volume 336, 30 December 2016, Pages 437-446
نویسندگان
Ka-Young Park, Tae-Hee Lee, Suyeon Jo, Jayoon Yang, Sun-Ju Song, Hyung-Tae Lim, Jung Hyun Kim, Jun-Young Park,