Cerium-exchanged zeolites grown on metal gauze: A new catalyst system applicable for NOx reduction in mobile engine exhaust

被引：12

作者：

Ito, E ^{[1
]}

Hultermans, RJ ^{[1
]}

Calis, HP ^{[1
]}

Jansen, JC ^{[1
]}

vanBekkum, H ^{[1
]}

vandenBleek, CM ^{[1
]}

机构：

[1] DELFT UNIV TECHNOL,FAC CHEM TECHNOL & MAT SCI,2628 BL DELFT,NETHERLANDS

来源：

CATALYSIS TODAY | 1996年 / 27卷 / 1-2期

关键词：

zeolites; NOx; mobile engine exhaust; mordenite; ZSM-5;

D O I：

10.1016/0920-5861(95)00179-4

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

ZSM-5 and mordenite (MOR), directly grown on a stainless-steel metal gauze support and subsequently exchanged with cerium ions, were applied as a NO reduction catalyst. These supported cerium-zeolite catalysts were found to show turnover frequencies comparable to that of an unsupported cerium-exchanged mordenite. Furthermore, the thermostability of these materials was examined by a calcination-activity test cycle and Ce-ZSM-5 was found to be more stable than Ce-MOR. The present approach to grow zeolite directly on a support offers a new possibility to apply zeolite efficiently on a metal monolith applicable for NOx emission control of mobile sources.

引用

页码：123 / 128

页数：6

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