کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7714007 | 1497438 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Copper decorated perovskite an efficient catalyst for low temperature hydrogen production by steam reforming of glycerol
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Low temperature hydrogen production from stream reforming of glycerol is carried out over copper decorated perovskite catalysts under vapor phase reaction conditions. Among the catalysts studied LaNi0.9Cu0.1O3 showed the best performance with 73% glycerol conversion and 67% hydrogen selectivity. The chemical and structural properties of catalysts before and after the reaction were studied by X-ray diffraction, CO2-TPD and TPR, TGA, TEM and XPS. When the catalysts were reduced with H2, perovskite structure decomposes to La2O3, Ni and Cu, Cu deposits on Ni nano particles were generated, thereby forming Cu/Ni nano catalysts. Cu decoration resulted in, higher reduction of active Ni species with moderate basicity, good catalytic activity which was further decreased with increase in Cu concentration. The catalyst (LaNi0.9Cu0.1O3) did not change any activity till 24 h in time-on-steam at 650 °C. TGA analysis revealed that copper decorated catalyst has better resistance to coke deposition compared to pervoskite catalysts.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 35, 21 September 2015, Pages 11428-11435
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 35, 21 September 2015, Pages 11428-11435
نویسندگان
S. Ramesh, Eun-Hyeok Yang, Jae-Sun Jung, Dong Ju Moon,