کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5450418 | 1398502 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
One-step uniform growth of magnesium hydride nanoparticles on graphene
ترجمه فارسی عنوان
رشد یکنواخت نانوذرات هیدرید منیزیم بر روی گرافن
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کلمات کلیدی
ذخیره سازی هیدروژن، منیزیم هیدرید، گرافن، نانوذرات، نانوکامپوزیت،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
A simple solvent-free method to synthesize MgH2 nanoparticles (MgH2 NPs) uniformly grown on graphene nanosheets (GNs) has been reported in this paper. Based on the formation of MgH2 by di-n-butylmagnesium ((C4H9)2Mg) thermal decomposition under hydrogen pressure, the GNs were added as matrix to hinder the agglomeration and growing of MgH2 NPs. The fabricated MgH2/GNs nanocomposites, in which MgH2 NPs were homogenously growing in the graphene matrix, have been synthesized by the favorable adsorption energy between (C4H9)2Mg and GNs. Resulting from the one-step solvent-free route, the generated MgH2 NPs shows high hydrogen capacity and steady hydriding and dehydriding properties, without the interference of the synthetic medium. At the same time, the size of the fabricated MgH2 NPs can be controlled by adjusting the mass ratio of MgH2 to graphene, the various hydrogen pressure and temperature. Attributed to smaller size effect, well uniform distribution of high density MgH2 NPs, and the agglomeration blocking ability of graphene, the MgH2/GNs-40Â wt% exhibits the favorite hydrogen storage performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Natural Science: Materials International - Volume 27, Issue 1, February 2017, Pages 81-87
Journal: Progress in Natural Science: Materials International - Volume 27, Issue 1, February 2017, Pages 81-87
نویسندگان
Yuqin Huang, Guanglin Xia, Jie Chen, Baoping Zhang, Qian Li, Xuebin Yu,