کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
57510 | 47122 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Methane activation by NO2 on Co loaded SBA-15 catalysts: The effect of mesopores (length, diameter) on the catalytic activity
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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چکیده انگلیسی
In a general model of “three-function deNOx” catalyst, the partial oxidation of methane by NO2 is an important step (CH4 + NO2 → CxHyOz + NO). To study the effect of the length and diameter, in the mesopores of SBA-15, we have synthesized catalysts with 3 wt.% cobalt supported on SBA-15, with differences in length and diameter of channels. Three different cobalt species were detected on all catalysts. We demonstrated by TPSR experiments that the activity of cobalt/SBA-15 catalysts is affected by the length, the diameter and connections between mesopores of the SBA-15 supports. We show that by changing textural properties of silica support the temperature of 100% conversion of NO2 into NO can decrease by more than 100 °C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 137, Issues 2–4, 30 September 2008, Pages 191–196
Journal: Catalysis Today - Volume 137, Issues 2–4, 30 September 2008, Pages 191–196
نویسندگان
Nissrine El Hassan, Anne Davidson, Patrick Da Costa, Gérald Djéga-Mariadassou,