کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5146639 | 1497346 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of graphene templated fluorides of Ce and La on the de/rehydrogenation behavior of MgH2
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of graphene templated fluorides of Ce and La on the de/rehydrogenation behavior of MgH2 Effect of graphene templated fluorides of Ce and La on the de/rehydrogenation behavior of MgH2](/preview/png/5146639.png)
چکیده انگلیسی
The present study suggest that in contrast to stand alone additive (ie. CeF4 and LaF3), Gr templated additive (i.e. CeF4@Gr and LaF3@Gr) shows improved hydrogen sorption in MgH2. Lower desorption temperature (245 °C) and dual tuning effect, i.e. lowering of thermodynamic (62.77 kJ/mol H2: lower from 74 kJ/mol for pristine MgH2) and kinetics barrier (93.01 kJ/mol) has been observed for MgH2 ball milled with CeF4@Gr (MgH2:CeF4@Gr). Additionally, MgH2:CeF4@Gr shows good reversibility up to 24 cycles of de/rehydrogenation. The feasible working mechanism of CeF4@Gr as additive for MgH2 has been studied in detail with the help of Transmission Electron Microscope (TEM), Fourier Transform Infrared Spectroscopy (FTIR) and X-ray Diffraction characterizations (XRD).251
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 31, 3 August 2017, Pages 20026-20035
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 31, 3 August 2017, Pages 20026-20035
نویسندگان
Pawan K. Soni, Ashish Bhatnagar, M.A. Shaz, O.N. Srivastava,