کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1280344 | 1497671 | 2007 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of Nb2O5 on MgH2 properties during mechanical milling
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Recently, it was shown that hydrogen absorption–desorption kinetics in magnesium were improved by milling magnesium hydride (MgH2) with transition metal oxides. Herein, we investigate the role of the most effective of these oxides, Nb2O5 when added in larger volume fraction. The effect of Nb2O5 on magnesium crystalline structure, particle size and (ab)desorption properties has been characterised. Moreover, we report that pure MgH2 can also show fast hydrogen sorption kinetics after a long milling time. The effects of Nb2O5 on MgH2 sorption properties are rationalised in a new approach considering Nb2O5 as a dispersing agent, which helps reduce MgH2 particle size during milling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 32, Issue 13, September 2007, Pages 2400–2407
Journal: International Journal of Hydrogen Energy - Volume 32, Issue 13, September 2007, Pages 2400–2407
نویسندگان
K.-F. Aguey-Zinsou, J.R. Ares Fernandez, T. Klassen, R. Bormann,