Improvement of both the acidity and stability of MCM-41 by post-synthesis alumination

被引：23

作者：

Shen, SC ^{[1
]}

Kawi, S ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Chem & Environm Engn, Singapore 119260, Singapore

来源：

CHEMISTRY LETTERS | 1999年 / 12期

关键词：

D O I：

10.1246/cl.1999.1293

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Post-synthesis alumination of MCM-41 is found to substantially enhance the material's: (1) surface acidity, by increasing its number of Lewis and Bronsted acid sites; (2) physical stability, by improving its hydrothermal stability in boiling water and in high-temperature steam; (3) mechanical stability, by minimizing the collapse of its mesopores under high pressure compression; and (4) chemical stability, by improving its resistance in high pH aqueous solution.

引用

页码：1293 / 1294

页数：2

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