A STUDY ON THE KINETICS AND MECHANISM OF SILVER-CLUSTER FORMATION IN ZEOLITE AG-X BY DIFFUSE-REFLECTANCE SPECTROSCOPY

被引：10

作者：

CVJETICANIN, ND

PETRANOVIC, NA

机构：

[1] Department of Physical Chemistry, Faculty of Science, University of Belgrade

来源：

ZEOLITES | 1994年 / 14卷 / 01期

关键词：

KINETICS; SILVER CLUSTERS; X ZEOLITE; DIFFUSION; REFLECTANCE SPECTROSCOPY;

D O I：

10.1016/0144-2449(94)90051-5

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 kinetics of silver-cluster formation was investigated using diffuse reflectance spectroscopy (DRS), by following the intensity changes of the absorption band at 410 nm that appears under the thermal dehydration of zeolite Ag-X. Using the theoretical model of diffusion into a sphere, it was shown that the diffusion of Ag+ is the rate determining step in the silver-cluster formation. This model also enabled the calculation of some kinetic parameters.

引用

页码：35 / 41

页数：7

共 22 条

[1] FAR-INFRARED STUDIES OF SILVER ATOMS, SILVER IONS, AND SILVER CLUSTERS IN ZEOLITE-A AND ZEOLITE-Y [J].