کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9760427 | 1498048 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Production of the hydrogen by methane steam reforming over nickel catalysts prepared from hydrotalcite precursors
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Production of the hydrogen by methane steam reforming over nickel catalysts prepared from hydrotalcite precursors Production of the hydrogen by methane steam reforming over nickel catalysts prepared from hydrotalcite precursors](/preview/png/9760427.png)
چکیده انگلیسی
Catalysts were prepared from hydrotalcite precursors, characterized and tested in the reaction of methane steam reforming to produce hydrogen. The precursors were synthesized by: the traditional technique, with co-precipitation of Ni, Mg and Al nitrates with carbonate; co-precipitation of Mg and Al nitrates with pre-synthesized nickel chelate and anion-exchange of NO3â of hydrotalcite with nickel chelate. The oxides were analyzed using atomic absorption spectrophotometry, specific surface area, X-ray diffraction (XRD), temperature programmed reduction (TPR) with H2, catalytic tests and elemental analysis. The catalytic tests demonstrated high methane conversion, high activity for hydrogen production and high stability during the time of reaction for a molar ratio in the feed H2O:CH4Â =Â 2:1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 142, Issues 1â2, 24 March 2005, Pages 154-159
Journal: Journal of Power Sources - Volume 142, Issues 1â2, 24 March 2005, Pages 154-159
نویسندگان
Alessandra Fonseca, Elisabete M. Assaf,