SMALL PORE VPI-5 - PORE BLOCKAGE DUE TO THERMALLY INDUCED STACKING DISORDERS

被引：26

作者：

SORBY, K

SZOSTAK, R

ULAN, JG

GRONSKY, R

机构：

[1] GEORGIA INST TECHNOL,GEORGIA TECH RES INST,ZEOLITE RES PROGRAM,ATLANTA,GA 30332

[2] UNIV OSLO,DEPT CHEM,N-0315 OSLO 3,NORWAY

[3] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,DIV MAT & CHEM SCI,NAT CTR ELECTRON MICROSCOPY,BERKELEY,CA 94720

来源：

CATALYSIS LETTERS | 1990年 / 6卷 / 02期

关键词：

adsorption measurement; Aluminophosphate VPI-5; high resolution transmission electron microscopy (HRTEM); pore molecular sieve; stacking disorder;

D O I：

10.1007/BF00774722

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 transformation of VPI-5 to AIPO4-8 generates stacking disorders with the crystal which severely restricts its function as a molecular sieve. Evidence of these stacking disorders is established with adsorption measurements and high resolution transmission electron microscopy (HRTEM). Even partial transformation (less than 10% conversion) results in an 80% loss in adsorption capacity. These stacking disorders originate from the symmetry of the VPI-5 structure. © 1990 J.C. Baltzer A.G. Scientific Publishing Company.

引用

页码：209 / 214

页数：6

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