Problems in preparation of FeZSM-5 catalysts

被引：77

作者：

Hall, WK ^{[1
]}

Feng, XB

Dumesic, J

Watwe, R

机构：

[1] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA

[2] Univ Wisconsin, Dept Chem Engn, Madison, WI 53706 USA

来源：

CATALYSIS LETTERS | 1998年 / 52卷 / 1-2期

关键词：

zeolite chemistry; stability factors; Mossbauer and reaction studies; characterization of good versus poor preparations;

D O I：

10.1023/A:1019090529783

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

FeZSM-5 catalysts for SCR of NO to N-2 can be made in a highly durable form that may be useful for automotive exhaust cleanup, but not presently reproducible. Herein we outline the properties and characteristics of good versus poor catalysts and provide results of experiments that effect the properties of the final preparation. It is shown how Mossbauer characterization will be useful in understanding the changes that occur as the catalysts age. The problem has not yet been resolved. This letter is meant to challenge research by others.

引用

页码：13 / 19

页数：7

共 13 条

[1]

CHEN HS, IN PRESS

[2] Kinetic isotope effects and mechanism of biomimetic oxidation of methane and benzene on FeZSM-5 zeolite [J].