کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1283300 | 1497637 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Oxygen reduction mechanism of NdBaCo2O5+δ cathode for intermediate-temperature solid oxide fuel cells under cathodic polarization
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Oxygen reduction mechanism of NdBaCo2O5+δ cathode for intermediate-temperature solid oxide fuel cells under cathodic polarization Oxygen reduction mechanism of NdBaCo2O5+δ cathode for intermediate-temperature solid oxide fuel cells under cathodic polarization](/preview/png/1283300.png)
چکیده انگلیسی
The oxygen reduction reaction mechanism of NdBaCo2O5+δ cathode for intermediate-temperature solid oxide fuel cells was investigated by the electrochemical impedance spectroscopy under cathodic polarization. The Nyquist diagrams showed the different changes with the applied cathodic voltage at three temperature ranges: at 500 and 550 °C, at 600 °C, at 650 and 700 °C, which might be related to the changes in the charge transfer and/or oxygen diffusion processes including O2 adsorption/desorption. Besides, the diffusion process was more easily affected by the increase of applied cathodic voltages than the charge transfer process, which was ascribed to the low activation energy of the diffusion process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 34, Issue 5, March 2009, Pages 2416–2420
Journal: International Journal of Hydrogen Energy - Volume 34, Issue 5, March 2009, Pages 2416–2420
نویسندگان
Haitao Gu, Han Chen, Ling Gao, Yifeng Zheng, Xiaofang Zhu, Lucun Guo,