کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9609822 | 46563 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Supported perovskites for total oxidation of toluene
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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چکیده انگلیسی
Supported LaCoO3 perovskites with 10 and 20 wt.% loading were obtained by incipient wetness impregnation of different Ce1âxZrxO2 (x = 0-0.3) supports with a “citrate” solution, prepared from La and Co nitrates, and citric acid. Ce1âxZrxO2 were also prepared using the “citrate method”. All materials were calcined at 700 °C for 6 h and investigated by N2 adsorption at â196 °C, XRD and XPS. XRD patterns evidenced the formation of a pure perovskite phase. These materials were tested in toluene total oxidation in the temperature range 100-500 °C. All catalysts showed a lower T50 than the corresponding Ce1âxZrxO2 supports or pure LaCoO3 perovskite. The activity of the catalysts was found to increase with the perovskite loading, irrespective of the support composition. For the same loading, the support composition influences drastically the oxidative abilities of LaCoO3.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis B: Environmental - Volume 60, Issues 1â2, 1 September 2005, Pages 33-39
Journal: Applied Catalysis B: Environmental - Volume 60, Issues 1â2, 1 September 2005, Pages 33-39
نویسندگان
M. Alifanti, M. Florea, S. Somacescu, V.I. Parvulescu,