کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5147804 | 1497360 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Syngas production by the CO2 reforming of CH4 over Ni-Co-Mg-Al catalysts obtained from hydrotalcite precursors
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The catalytic performance of the Ni, Co, Mg, and Al mixed-oxide solids, synthesized via hydrotalcite route, was investigated towards the dry reforming of methane for hydrogen production. The hydrotalcite structure was successfully obtained upon the synthesis. After calcination at 800 °C under an air flow, this structure was completely decomposed and the resulting oxides (CoxNiyMgzAl2800, x and y = 0; 1; 2; 3; 4, z = 2; 4, x + y + z = 6, x, y, and z are the molar ratios) were used as catalysts and were characterized using X-ray diffraction and Temperature-Programmed Reduction. The dry reforming of methane was carried out using a mixture of CH4:CO2 (1:1) after 2 h of reduction under an H2 flow at 800 °C. Co2Ni2Mg2Al2800 showed the highest catalytic activity in the studied series, ascribable to an interaction between Ni and Co, which is optimal for such Co/Ni ratio. The post-reaction characterization of the catalytic samples by X-ray diffraction and Differential Scanning Calorimetry evidenced a better resistance towards carbon deposition for the catalysts where Co molar ratio is higher than Ni.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 17, 27 April 2017, Pages 12818-12828
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 17, 27 April 2017, Pages 12818-12828
نویسندگان
Carole Tanios, Sandy Bsaibes, Cédric Gennequin, Madona Labaki, Fabrice Cazier, Sylvain Billet, Haingomalala Lucette Tidahy, Bilal Nsouli, Antoine Aboukaïs, Edmond Abi-Aad,