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Title: Methane activation by NO2 on Co loaded SBA-15 catalysts : The effect of mesopores (length, diameter) on the catalytic activity
Authors: Hassan, Nissrine El 
Davidson, Anne
Da Costa, Patrick
Djéga-Mariadassou, Gérald
Affiliations: Department of Chemical Engineering 
Keywords: SBA-15
Subjects: Methane
Issue Date: 2008
Part of: Catalysis today
Volume: 137
Issue: 9
Start page: 191
End page: 196
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.
DOI: 10.1016/j.cattod.2008.01.020
Ezproxy URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Chemical Engineering

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