کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5147805 | 1497360 | 2017 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ni based catalysts promoted with cerium used in the steam reforming of toluene for hydrogen production
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
NixMg6âxAl1.8Ce0.2 (with 0 â¤Â x â¤Â 6) mixed oxides catalysts were prepared by hydrotalcite route. All the oxides were calcined at 800 °C and characterized by different physico-chemical methods. The catalysts are then reduced before their use in the steam reforming of toluene. The XRD and TG/DTA confirmed the formation of the hydrotalcite structure for the non-calcined samples. The N2 adsorption/desorption results revealed that all catalysts correspond to mesoporous materials. The study by temperature programmed reduction (H2-TPR) showed that the reducibility of the catalysts is influenced by the nickel content. The CO2-TPD results showed that the catalyst with high magnesium content present the highest basicity. The Ni2Mg4Al1.8Ce0.2 shows the best toluene conversion among all the catalysts and it was then compared to a non-promoted catalyst. The spent catalysts were characterized by TPO, TG/DTA and XRD and they didn't reveal any coke formation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 17, 27 April 2017, Pages 12829-12840
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 17, 27 April 2017, Pages 12829-12840
نویسندگان
Jihane Abou Rached, Christelle El Hayek, Eliane Dahdah, Cédric Gennequin, Samer Aouad, Haingomalala Lucette Tidahy, Jane Estephane, Bilal Nsouli, Antoine Aboukaïs, Edmond Abi-Aad,