کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1283362 | 1497639 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical properties of magnesium-based hydrogen storage alloys improved by transition metal boride and silicide additives
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Transition metal borides and silicides prepared by mechanical alloying (MA) and chemical reduction methods (CR) were introduced to improve the corrosion resistance of magnesium-based hydrogen storage alloys. The additive of FeB prepared by MA can remarkably enhance the discharge capacity and cycling stability which has initial discharge capacity of 355.9 mA h gâ1 and keeps 224 mA h gâ1 after 100 cycles, and the exchange density I0 of MgNi-NiB(CR) electrodes is 344.80 mA gâ1 but MgNi is only 67.6 mA gâ1 which leads to the better rate capability of the composite alloys. The results of SEM characterization, cyclic charge-discharge tests, potentiodynamic polarization, linear polarization and AC impedance experiment show that the corrosion inhibition property of MgNi in alkaline is improved by transition metal boride and silicide additives.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 34, Issue 3, February 2009, Pages 1476-1482
Journal: International Journal of Hydrogen Energy - Volume 34, Issue 3, February 2009, Pages 1476-1482
نویسندگان
Li-Fang Jiao, Hua-Tang Yuan, Yi-Jing Wang, Yong-Mei Wang,