Parameters influencing the preparation and characterization of sodium on zeolite catalysts

被引：0

作者：

Martens, L.R.M. ^{[1
]}

Vermeiren, W.J.M. ^{[1
]}

Grobet, P.J. ^{[1
]}

Jacobs, P.A. ^{[1
]}

机构：

[1] Laboratorium voor Oppervlaktechemie, Katholieke Universiteit Leuven, Kardinaal Mercierlaan 92, B-3030 Leuven (Heverlee), Belgium

来源：

Studies in Surface Science and Catalysis | 1987年 / 31卷 / 0C期

关键词：

Alumina - Aluminum oxide - Decomposition - Electron spin resonance spectroscopy - Sodium Azide - Zeolites;

D O I：

10.1016/S0167-2991(08)65434-8

中图分类号：

学科分类号：

摘要：

Optimization of a sodium on support catalyst for room temperature isomerization of butenes is reported. In situ ESR spectroscopy of the working catalysts allows to discriminate between the different sodium species present. Sodium azide impregnation using a methanolic slurry on zeolites L, X, Y and alumina followed by slow thermal decomposition of the adsorbed azide, turned out to be tne preferred method. Thermoanalytic, ESR and IR characterization of the catalyst showed that neutral sodium clusters glued to the wall ot the support through a chemical interaction between residual nitrogen and support oxygen. © 1987 Elsevier Science Publishers B.V., Amsterdam - Printed in The Netherlands.

引用

页码：531 / 542