کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1525205 1511838 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cobalt and KNO3 supported on alumina catalysts for diesel soot combustion
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Cobalt and KNO3 supported on alumina catalysts for diesel soot combustion
چکیده انگلیسی

The catalytic combustion of diesel soot was studied in the presence of fresh and aged catalysts: Co/Al2O3, KNO3/Al2O3 and Co/KNO3/Al2O3. The catalysts were prepared by impregnation using nitrate solutions. The catalysts were characterized by X-ray diffraction, thermal programmed reduction, vibrational spectroscopy and X-ray photoelectron spectroscopy.Fresh and aged catalysts present high activity in presence of O2 and O2/NO. The values of the combustion temperature decrease more than 200 °C with respect to that observed in the process without catalysis. The activity is associated with the presence of KNO3 and the role of this salt can be attributed to the contribution of NO3−/NO2− redox cycle.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 123, Issues 2–3, 1 October 2010, Pages 557–562
نویسندگان
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