کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7738080 | 1497984 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improvement of the redox durability of Ni-gadolinia doped ceria anodes due to the use of the composite particles prepared by spray pyrolysis method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The redox behaviors of Ni-gadolinia doped ceria (GDC) anodes with different compositions and microstructures were investigated. When the NiO-GDC composite particles prepared by spray pyrolysis were used for an anode (SP-cells), the decrease of the cell voltage during the redox cycles was smaller than that of the cell with anode using the mixed powder of NiO and GDC (Mix-cells). Current interruption and AC impedance measurements were examined before redox cycle, after 1st redox cycle, and after 10th redox cycles. The ohmic and polarization losses after 10th cycles for SP-cells were smaller than those for Mix cells. The morphology changes of the Ni-GDC anodes between before-redox cycle and after-10th redox cycles were observed by scanning electron microscopy (SEM). These results indicate that the use of NiO-GDC composite particles suppressed the excessive agglomerations of nickel grains during the redox cycles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 248, 15 February 2014, Pages 190-195
Journal: Journal of Power Sources - Volume 248, 15 February 2014, Pages 190-195
نویسندگان
Satoshi Hashigami, Hiroyuki Yoshida, Daisuke Ueno, Mitsunobu Kawano, Toru Inagaki,