کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
53100 | 46907 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Role of CeO2–ZrO2 in diesel soot oxidation and thermal stability of potassium catalyst
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Role of CeO2–ZrO2 in diesel soot oxidation and thermal stability of potassium catalyst Role of CeO2–ZrO2 in diesel soot oxidation and thermal stability of potassium catalyst](/preview/png/53100.png)
چکیده انگلیسی
Potassium nitrate catalysts supported on different oxides (CeO2, Ce0.5Zr0.5O2 and ZrO2) were prepared for diesel soot combustion. The ageing treatment was performed at 800 °C for 24 h and the catalytic activity was evaluated by a temperature-programmed oxidation technique. The results demonstrated that, compared with CeO2 and ZrO2, Ce0.5Zr0.5O2 presented good redox properties, a high surface area and available potassium-holding capacity at an elevated temperature. For aged K/Ce0.5Zr0.5O2, the combustion temperature of soot particle was 359 °C under tight contact conditions and 455 °C under loose contact conditions. Thus, ceria–zirconia mixed oxides were considered as good candidate supports for diesel soot oxidation catalysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 8, Issue 8, August 2007, Pages 1274–1278
Journal: Catalysis Communications - Volume 8, Issue 8, August 2007, Pages 1274–1278
نویسندگان
Xiaodong Wu, Dongxu Liu, Kai Li, Jia Li, Duan Weng,