کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7712106 | 1497422 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
In situ synthesis of graphene supported Co-Sn-B alloy as an efficient catalyst for hydrogen generation from sodium borohydride hydrolysis
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
In this study, graphene (GP) supported Co-Sn-B alloy were synthesized via in situ chemical reduction reactions for hydrogen generation (HG) from alkaline sodium borohydride (NaBH4). X-ray diffraction (XRD), high resolution transmission electron Microscopy (HRTEM) and X-ray photoelectron spectroscopy (XPS) were employed to verify the structure, morphology and the surface element composition of the alloy. Coupled plasma-atomic emission spectrometry (ICP-AES) were used to analyze the surface composition of the alloy. The effects of complexing agent addition, Co/Sn molar ratio, graphene loading on catalytic activity of the alloy were studied. The maximum hydrogen generation rate reached 11,272 mL minâ1gCoâ1 at 30 °C in 5 wt. % NaOH and 5 wt. % NaBH4 solution, which was three times higher than unsupported Co-B catalysts. The activation energy of the catalytic hydrolysis reaction of sodium borohydride was 39.57 kJ/mol, which is comparable to the noble metal catalysts.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 3, 21 January 2016, Pages 1592-1599
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 3, 21 January 2016, Pages 1592-1599
نویسندگان
Zhenkai Cui, Yueping Guo, Jiantai Ma,