PROPERTIES OF RH-EXCHANGED SIO2-AL2O3 SOL-GEL CATALYSTS

被引：6
|
作者：
SERMON, PA
WALTON, TJ
LUENGO, MAM
VONG, MSW
机构：
来源：
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1991年 / 87卷 / 01期
关键词：
D O I：
10.1039/ft9918700199
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 addition of Al3+ to silica sol-gels reduces their N2 adsorption capacity, total surface area and microporosity, but increases their ion-exchange capacity towards Rh+ to the extent that over half of the Al sites have exchange capacity towards Rh+. The metal so introduced is readily reduced in H2 and is active in alkene hydrogenation, especially when present in less microporous gels produced by the presence of Al3+. The potential of this type of catalyst and how it might be optimised in future are considered.
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页码：199 / 202
页数：4
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