A COMPARISON OF THE THERMAL STABILITIES GA13, GAAL12 AND AL13-PILLARED CLAY-MINERALS

被引：54

作者：

BRADLEY, SM

KYDD, RA

机构：

[1] Department of Chemistry, University of Calgary, Calgary, T2N 1N4, Alberta

来源：

CATALYSIS LETTERS | 1991年 / 8卷 / 2-4期

关键词：

PILLARED CLAYS; PILC; POLYOXOCATIONS; TRIDECAMERS; CATALYSIS; AL13; GAAL12; GA13;

D O I：

10.1007/BF00764115

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：

A comparison has been made of the thermal stabilities of pillared clays prepared through the intercalation of Ga13, Al13 and GaAl12 polyoxocations by STx-1 montmorillonite. The stabilities, as revealed through differential thermal analyses, powder X-ray diffraction and surface area studies, were found to increase in the order Ga13-PILC < Al13-PILC < GaAl12-PILC. This is in agreement with the order of the stabilities of these polyoxocations in solution, which also correlates with their relative degrees of symmetry, as previously revealed by NMR studies.

引用

页码：185 / 192

页数：8

共 17 条

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