کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
58148 | 47143 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Operando systems for the evaluation of the catalytic performance of NOx storage and reduction materials
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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چکیده انگلیسی
Operando measurements were carried out in a quartz reactor to evaluate the catalytic performance of NOx storage and reduction materials containing Pt and Ba supported on Al2O3. Carbonates present on the surface after activation were removed after the first exposure of the sample to the nitration flow. Nitrite species bound to barium were observed at low temperatures. Barium nitrates are the predominant species in the studied temperature range under wet and dry conditions. These species are not stable at temperatures above 723 K. The presence of water inhibits the formation of alumina nitrates favoring the coordination of nitrates with the barium sites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 119, Issues 1–4, 15 January 2007, Pages 73–77
Journal: Catalysis Today - Volume 119, Issues 1–4, 15 January 2007, Pages 73–77
نویسندگان
B.I. Mosqueda-Jiménez, A. Lahougue, P. Bazin, V. Harlé, G. Blanchard, A. Sassi, M. Daturi,