Preparation of nanometeric gold particles on NaHY

被引：45

作者：

Guillemot, D

PolissetThfoin, M

Fraissard, J

机构：

[1] Laboratoire de Chimie des Surfaces, CNRS URA 1428, Univ. Pierre et Marie Curie, 75252 Paris Cedex 05, case 196

来源：

CATALYSIS LETTERS | 1996年 / 41卷 / 3-4期

关键词：

gold particles; zeolite; TEM;

D O I：

10.1007/BF00811481

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：

Two Au/NaHY systems examined by TEM were prepared using an autoreduction method of Au3+ by its ethylene diamine ligands. When about 10% of the cations are H+ the particle diameter distribution is found to be about 2 nm and homogeneous. If 75% of cations are H+ the gold particle distribution is centered around 3-4 nm. Gold particles are of good stability when exposed to H-2 at 573 K for two days and the stability under O-2 greater with the higher acidified zeolite.

引用

页码：143 / 148

页数：6

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