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 BaZr0.85Y0.15O3−d-Nd0.1Ce0.9O2−δ electrolytes for intermediate temperature-solid oxide fuel cells
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Electrical and physical properties of composite BaZr0.85Y0.15O3−d-Nd0.1Ce0.9O2−δ electrolytes for intermediate temperature-solid oxide fuel cells
چکیده انگلیسی
Co-ionic (H+/O2−) electrolytes are fabricated by compositing both proton conductor (BaZr0.85Y0.15O3-δ, BZY) and oxygen-ion conductor (Nd0.1Ce0.9O2−δ, 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
نویسندگان
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