کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
52491 | 46875 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The catalytic activity of CuO–CeO2 mixed oxides for diesel soot oxidation with a NO/O2 mixture
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The catalytic activity of CuO–CeO2 mixed oxides for diesel soot oxidation with a NO/O2 mixture The catalytic activity of CuO–CeO2 mixed oxides for diesel soot oxidation with a NO/O2 mixture](/preview/png/52491.png)
چکیده انگلیسی
Copper doped ceria and ceria–zirconia mixed oxides were synthesized using the citric acid sol–gel method. The temperature-programmed oxidation (TPO) results showed that the Cu modification improved the low-temperature activity and the selectivity to CO2 of ceria for soot oxidation in the presence of NO and excess oxygen even after ageing at 800 °C for 20 h in flow air. Meanwhile, not only the segregation of Cu and sintering of CuO, but also the separation of Ce- and Zr-rich phases worsened the activity of the Cu–Ce–Zr catalyst after the high-temperature calcination.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 8, Issue 12, December 2007, Pages 2110–2114
Journal: Catalysis Communications - Volume 8, Issue 12, December 2007, Pages 2110–2114
نویسندگان
Xiaodong Wu, Qing Liang, Duan Weng, Zhenxiang Lu,