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

页码：59 / 63

页数：5

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