کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5145831 | 1497377 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization of hydrogen storage properties of Mg-Fe-CNT composites prepared by ball milling, hot-extrusion and severe plastic deformation methods
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Characterization of hydrogen storage properties of Mg-Fe-CNT composites prepared by ball milling, hot-extrusion and severe plastic deformation methods Characterization of hydrogen storage properties of Mg-Fe-CNT composites prepared by ball milling, hot-extrusion and severe plastic deformation methods](/preview/png/5145831.png)
چکیده انگلیسی
A systematic investigation was performed on the hydrogen storage properties of mechanically prepared 2MgFe/carbon nanotube (CNT) composites. The powders were transformed into bulk form by three processing routes (hot-extrusion, cold-rolling and extrusion followed by cold-rolling). The samples were kept in air to test their resistance to oxidation. Hydrogen absorption capacity and hydriding kinetics of the composites were dependent on the quantity of added CNTs. A 5Â wt% addition of CNTs is optimum to facilitate the hydrogen absorption and desorption. Single cold-rolling (CR) was found to be the best route. Compared with powder composites, samples prepared by CR presented improved kinetics, the same hydrogen capacity and a decrease in the incubation time for activation. The cold-rolled composite 2MgFe/5Â wt% CNTs achieved 73% of the theoretical capacity of Mg2FeH6, and desorbs almost the same quantity. Moreover, these absorption and desorption processes occur faster than in the powders.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 48, 28 December 2016, Pages 23092-23098
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 48, 28 December 2016, Pages 23092-23098
نویسندگان
Gisele Ferreira de Lima Andreani, Maria Regina Martins Triques, Claudio Shyinti Kiminami, Walter Jose Botta, Virginie Roche, Alberto Moreira Jr.,