Reactivity of Mg-Ba catalyst in NOx storage/reduction

被引：14
|
作者：
Basile, F. [1 ]
Fornasari, G. [1 ]
Gambatesa, A. [1 ]
Livi, M. [1 ]
Vaccari, A. [1 ]
机构：
[1] Univ Bologna, Dipartimento Chim Ind & Mat, Alma Mater Studiorum, I-40136 Bologna, Italy
来源：
CATALYSIS TODAY | 2007年 / 119卷 / 1-4期
关键词：
NSR; NOx storage/reduction; alkaline-earth metal; Pt;
D O I：
10.1016/j.cattod.2006.08.051
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A new catalyst for NOx storage/reduction was prepared to improve the activity of Ba-Pt/gamma-Al2O3 by replacing Ba with a mixture of Ba and Mg. The catalyst was prepared by impregnating I wt.% Pt and then the alkaline-earth metals (Mg, Ba) on commercial gamma-Al2O3. The tests have been carried out in a wide temperature range (ca. 200-400 degrees C) in order to understand the role of the mixture of alkaline-earth metals as a function of temperature. The behaviour of the two catalysts was different and indicated a synergetic effect between Mg and Ba. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：59 / 63
页数：5
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