Investigations on P zeolites: synthesis, characterisation, and structure of highly crystalline low-silica NaP

被引：88

作者：

Albert, BR

Cheetham, AK

Stuart, JA

Adams, CJ

机构：

[1] Univ Calif Santa Barbara, Mat Res Lab, Santa Barbara, CA 93106 USA

[2] Unilever Res, Port Sunlight Lab, Wirral, Merseyside, England

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 1998年 / 21卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

gismondine framework; highly crystalline low-silica NaP zeolite; synthesis; spectroscopical characterisation; structure refinement;

D O I：

10.1016/S1387-1811(97)00059-0

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A highly crystalline sample of low-silica zeolite P was synthesised. It was, therefore, possible to investigate the structure of Na8Al8Si8O32. 15.2H(2)O on the basis of highly resolved synchrotron data and to correlate structural information with data from SEM, DTA/TGA, temperature-dependent DRIFTS, transmittance infrared, Raman, Si-29 MAS NMR, and Al-27 MAS NMR experiments. The crystal structure of low-silica NaP has been determined in the monoclinic crystal system, space group C2/c (a = 14.2386(5) Angstrom, b = 9.9836(3) Angstrom, c = 10.0069(3) Angstrom, beta = 134.217(1)degrees, R-P=0.0762, wR(P)=0.0569). As expected, the zeolite framework can be represented by a GIS net. However, the symmetry of the framework and the arrangement of the extraframework atoms differs from gismondine. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：133 / 142

页数：10

共 23 条

[1] Investigations on P zeolites: synthesis and structure of the gismondine analogue, highly crystalline low-silica CaP [J].