TOPOLOGY AND MAXIMUM CONTENT OF ISOLATED SPECIES (AL, GA, FE, B, SI, ...) IN A ZEOLITIC FRAMEWORK - AN APPROACH TO ACID CATALYSIS

被引：86

作者：

BARTHOMEUF, D

机构：

[1] Laboratoire de Réactivité de Surface et Structure, URA 1106, Université Pierre et Marie Curie, 75252 Paris Cedex 05

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1993年 / 97卷 / 39期

关键词：

D O I：

10.1021/j100141a032

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：

The use of a topological density makes possible the calculation of the maximum concentration of isolated atoms A with no second A neighbors in a framework containing two types of atoms (Al in Si-Al zeolites for instance) or three types (Si in SAPO's for example). The structures with the lowest topological density can accept the highest level of atom A in the isolated form. The results are related to the maxima obtained in acidity and catalysis as a function of A atoms concentration.

引用

页码：10092 / 10096

页数：5