کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9610204 | 47163 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cu, Mn and Co molybdates derived from novel precursors catalyze the oxidative dehydrogenation of propane
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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چکیده انگلیسی
The activity of various transition metal molybdates in the oxidative dehydrogenation of propane was tested. A series of nine molybdates of Zn, Cu, Co, Fe and Mn were synthesized by either a hydrothermal or a precursor method. The catalysts were characterized by X-ray diffraction (XRD), atomic absorption (AA), laser Raman spectroscopy (LRS), and scanning electron microscopy (SEM). The reaction was carried out at atmospheric pressure in a temperature range of 400-600 °C. The copper, cobalt and manganese molybdates were the best performing catalysts. The latter one reached selectivities around 50% at 20% conversion. All the catalysts kept the original structure after reaction. The best and most stable formulation was a cobalt molybdate, the only solid that maintained its surface area after reaction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volumes 107â108, 30 October 2005, Pages 338-345
Journal: Catalysis Today - Volumes 107â108, 30 October 2005, Pages 338-345
نویسندگان
Luz Amparo Palacio, Adriana EchavarrÃa, Ligia Sierra, Eduardo A. Lombardo,