کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9609893 | 46540 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Quantified NOx adsorption on Pt/K/gamma-Al2O3 and the effects of CO2 and H2O
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Quantified NOx adsorption on Pt/K/gamma-Al2O3 and the effects of CO2 and H2O Quantified NOx adsorption on Pt/K/gamma-Al2O3 and the effects of CO2 and H2O](/preview/png/9609893.png)
چکیده انگلیسی
When 5% CO2 was included in a feed stream with 300Â ppm NO and 12% O2, the amount of K-based nitrate storage decreased by 45% after 1Â h on stream due to the competition of adsorbed free nitrates with carboxylates for adsorption sites. When 5% H2O was included in a feed stream with 300Â ppm NO and 12% O2, the amount of K-based nitrate storage decreased by only 16% after 1Â h, but the Al2O3-based nitrates decreased by 92%. Interestingly, with both 5% CO2 and 5% H2O in the feed, the total storage only decreased by 11%, as the hydroxyl groups generated on Al2O3 destabilized the K-CO2 bond; specifically, H2O mitigates the NOx storage capacity losses associated with carboxylate competition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis B: Environmental - Volume 58, Issues 3â4, 28 June 2005, Pages 255-264
Journal: Applied Catalysis B: Environmental - Volume 58, Issues 3â4, 28 June 2005, Pages 255-264
نویسندگان
Todd J. Toops, D. Barton Smith, William S. Epling, Jim E. Parks, William P. Partridge,