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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.
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页码：143 / 148
页数：6
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