XE-129 NMR OF SILVER-EXCHANGED X-TYPE AND Y-TYPE ZEOLITES

被引：41

作者：

GROSSE, R

BURMEISTER, R

BODDENBERG, B

GEDEON, A

FRAISSARD, J

机构：

[1] UNIV DORTMUND,LEHRSTUHL PHYS CHEM 2,OTTO HAHN STR,W-4600 DORTMUND 50,GERMANY

[2] UNIV PARIS 06,CHIM SURFACES LAB,F-75252 PARIS 05,FRANCE

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1991年 / 95卷 / 06期

关键词：

D O I：

10.1021/j100159a061

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 adsorption isotherms and the Xe-129 NMR chemical shifts of xenon sorbed in the supercages of partially and fully silver exchanged zeolites NaX and NaY after vacuum dehydration as well as after subsequent oxygen treatment were determined. The unusual displacements of the chemical shifts upfield from those found for the sodium forms are attributed to specific interactions of xenon with silver cations in the supercages. It is concluded that after vacuum dehydration at 400 and 500-degrees-C no silver clusters are formed in the supercages with the possible exception of the fully silver exchanged zeolite AgX.

引用

页码：2443 / 2447

页数：5

共 46 条

[41]

OZIN GA, 1983, ACS SYM SER, V218, P409

[42]

OZIN GA, 1986, J PHYS CHEM-US, V90, P1129

[43] SILVER CLUSTERS IN ZEOLITES - FENSKE-HALL SELF-CONSISTENT FIELD MOLECULAR-ORBITAL CALCULATIONS [J].