کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5148157 | 1497380 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced electrical conductivity of LaNbO4 by A-site substitution
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Enhanced electrical conductivity of LaNbO4 by A-site substitution Enhanced electrical conductivity of LaNbO4 by A-site substitution](/preview/png/5148157.png)
چکیده انگلیسی
In LaNbO4, Sm, Gd and Yb were investigated as substitutes to enhance its ion conductivity, for its application in solid oxide fuel cell. La0.9M0.1NbO4 (M = Sm, Gd, Yb) was prepared via a solid-state reaction route and single phase was attained by calcining the constituent oxides at 1200 °C for 5 h. The total conductivity of LaNbO4 was increased by partly replaced La with Sm, Gd and Yb, due to the muti-valences of the substitutions. The highest conductivity (1.76 Ã 10â4 S cmâ1) was achieved for La0.9Sm0.1NbO4 at 800 °C in wet air, more than one order higher compared to that of LaNbO4. The introduction of Sm, Gd or Yb also slightly increased the ion transport number of LaNbO4, indicating that the increase of the total conductivity was mainly contributed by the enhanced ion conductivity, which was beneficial for its application as a pure ion conductor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 45, 7 December 2016, Pages 20633-20639
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 45, 7 December 2016, Pages 20633-20639
نویسندگان
Yong Cao, Nanqi Duan, Dong Yan, Bo Chi, Jian Pu, Li Jian,