Detection of the 'invisible aluminium' and characterisation of the multiple aluminium environments in zeolite USY by high-field solid-state NMR

被引：61

作者：

Fyfe, CA

Bretherton, JL

Lam, LY

机构：

[1] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada

[2] Petrobras Cenpes, Rio De Janeiro, Brazil

来源：

CHEMICAL COMMUNICATIONS | 2000年 / 17期

关键词：

D O I：

10.1039/b003081n

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The detection of all of the aluminium present in steamed zeolite H-Y catalysts by Al-27 MAS NMR at high field (18.8 T, 800 MHz for H-1) is reported; further, it is shown that it is possible by Al-27 MAS and MQMAS measurements to clearly identify four separate aluminium environments characteristic of these materials and to unambiguously assign their coordinations.

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页码：1575 / 1576

页数：2

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