کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
52259 | 46867 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pd ion substituted CeO2: A superior de-NOx catalyst to Pt or Rh metal ion doped ceria
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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![عکس صفحه اول مقاله: Pd ion substituted CeO2: A superior de-NOx catalyst to Pt or Rh metal ion doped ceria Pd ion substituted CeO2: A superior de-NOx catalyst to Pt or Rh metal ion doped ceria](/preview/png/52259.png)
چکیده انگلیسی
Pd, Pt and Rh ion doped CeO2, Ce1−xMxO2−δ (M = Pd2+, Pt2+, Rh3+) were synthesized by solution combustion synthesis method and the deNOx activity was investigated by NO + CO reaction. Ionically dispersed Pd in CeO2 was found to have better catalytic activity than ionically dispersed Pt or Rh in CeO2. High rates of NO conversion and high selectivity of N2 is observed over Ce0.98Pd0.02O2−δ. A bi-functional reaction mechanism is proposed, which fits very well with the experimental results. The oxide ion vacancy present in the CeO2 matrix seems to play an important role for product selectivity and high rate of reaction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 9, Issue 5, 20 March 2008, Pages 811–815
Journal: Catalysis Communications - Volume 9, Issue 5, 20 March 2008, Pages 811–815
نویسندگان
Sounak Roy, M.S. Hegde,