کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1622270 | 1516400 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural and hydriding/dehydriding properties of Mg-La-Ni-based composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Structural and hydriding/dehydriding properties of Mg-La-Ni-based composites Structural and hydriding/dehydriding properties of Mg-La-Ni-based composites](/preview/png/1622270.png)
چکیده انگلیسی
In this study, two ternary hydrogen storage composites based on the Mg-La-Ni system were successfully synthesized from the mixture of Mg, La2Mg17 and Ni powders at the weight ratio of 11:6:3 by combustion synthesis (CS) and hydriding combustion synthesis (HCS), respectively. Then, part of each composite was treated by mechanical milling (MM). The crystal structures and surface morphologies of the composites were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The composite prepared by CS consisted of Mg, La2Mg17 and Mg2Ni phases, while the composite prepared by HCS was composed of Mg, MgH2, LaH3, Mg2NiH4 and Mg2NiH0.3 phases. Compared with the composites prepared by CS, CSÂ +Â MM and HCS, the composite prepared by HCSÂ +Â MM exhibited the best hydriding/dehydriding properties. We show that the process of HCSÂ +Â MM is very effective in preparing Mg-based hydrogen storage materials, which have large hydrogen storage capacity and fast kinetics at lower temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 477, Issues 1â2, 27 May 2009, Pages 440-444
Journal: Journal of Alloys and Compounds - Volume 477, Issues 1â2, 27 May 2009, Pages 440-444
نویسندگان
Yunfeng Zhu, Yanfang Liu, Hao Gu, Liquan Li,