کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9759354 | 1497709 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Studies of yield and nature of carbon nanostructures synthesized by pyrolysis of ferrocene and hydrogen adsorption studies of carbon nanotubes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Studies of yield and nature of carbon nanostructures synthesized by pyrolysis of ferrocene and hydrogen adsorption studies of carbon nanotubes Studies of yield and nature of carbon nanostructures synthesized by pyrolysis of ferrocene and hydrogen adsorption studies of carbon nanotubes](/preview/png/9759354.png)
چکیده انگلیسی
The yield and nature of carbon nanostructures synthesized by the pyrolysis of acetylene using different quartz reactors and gas flow rates are investigated. The effect of these influential parameters on the growth of various carbon nanostructures has been studied and discussed. With a quartz reactor of inner diameter 24mm and at gas flow rates of 40 and 600sccm of acetylene and argon, respectively, good quality carbon nanotubes with better yield have been obtained. The samples were characterized by X-ray diffraction, BET surface area measurements, scanning electron microscopy, transmission electron microscopy and Raman spectroscopy. The hydrogenation behavior of these as-grown and purified carbon nanotubes was carried out at room temperature and in the pressure range 10-100bar, using a high pressure Sieverts apparatus. The hydrogen storage capacity of carbon nanotubes was found to increase, after subjecting to acid treatment and heat treatment. The maximum hydrogen adsorption capacity of 2.1wt% is obtained at 298K and 100bar for carbon nanotubes after acid treatment and air oxidation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 30, Issue 3, March 2005, Pages 311-317
Journal: International Journal of Hydrogen Energy - Volume 30, Issue 3, March 2005, Pages 311-317
نویسندگان
M.M. Shaijumon, S. Ramaprabhu,