کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9761804 | 1498429 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization of ZrO2 co-doped with Sc2O3 and CeO2 electrolyte for the application of intermediate temperature SOFCs
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The electrical conductivity and phase stability of ZrO2 co-doped with Sc2O3 and CeO2 were investigated in order to search for a better solid electrolyte material, which can be applicable for intermediate- or low-temperature solid oxide fuel cells (SOFCs). Present study showed that ZrO2 doped with Sc2O3 and CeO2 did not show any phase transition during heat treatment up to 1250-1550 °C and was exceedingly stable as a cubic phase in all temperature ranges. The ZrO2 co-doped with Sc2O3 and CeO2 showed much higher electrical conductivity than YSZ in the whole temperature range of 300-1100 °C and better long-term stability than any other Sc-ZrO2-based electrolyte. From the long-term performance check of the 5Ã5 cm2 unit cell operation, we could verify that ZrO2 co-doped with Sc2O3 and CeO2 can be a strong candidate electrolyte material for intermediate- or low-temperature SOFC.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 176, Issues 1â2, 14 January 2005, Pages 33-39
Journal: Solid State Ionics - Volume 176, Issues 1â2, 14 January 2005, Pages 33-39
نویسندگان
D.-S. Lee, W.S. Kim, S.H. Choi, J. Kim, H.-W. Lee, J.-H. Lee,