کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1280092 | 1497598 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and characterization of titanosilicates from white sand silica and its hydrogen uptake
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Natural silica source from Red Sea Desert mine – Egypt for white sand has been successfully employed as a starting precursor for hydrothermal preparation of titanosilicate types natisite and sitinakite. Interestingly the structure of the starting precursor of the silica source plays a role in controlling the type of the titanosilicate produced. ETS-4, natisite, sitinakite plus the doped ETS-4 and natisite with vanadium have been studied for hydrogen uptake. The samples adsorbed 2–2.3 wt% hydrogen at −193 °C and 20 bar applied hydrogen pressure. The dense natisite structure prepared in this study is found to be superior to those prepared using commercially available silica.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 35, Issue 19, October 2010, Pages 10359–10365
Journal: International Journal of Hydrogen Energy - Volume 35, Issue 19, October 2010, Pages 10359–10365
نویسندگان
N. Ismail, I. Hamdy Abd El-Maksod, H. Ezzat,