METAL SUPPORT INTERACTION IN PT/SIO2 CATALYSTS PREPARED BY THE SOL-GEL METHOD

被引：68

作者：

LOPEZ, T

ROMERO, A

GOMEZ, R

机构：

[1] Universidad Autonoma Metropolitana-Iztapalapa, Department of Chemistry, Mexico D.F. 09340, Mexico

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1991年 / 127卷 / 01期

关键词：

D O I：

10.1016/0022-3093(91)90406-V

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Pt/SiO2 catalysts were synthesized by the sol-gel method, varying the initial reaction conditions. Solids were treated at 450-degrees-C for 4 1/2 h, and later characterized by IR spectroscopy, UV-VIS (diffuse reflectance) and XRD. It is concluded that the metal-support interaction is lower if the catalysts are prepared by conventional impregnation. The sol-gel preparation method provides solids, the area of which is up to 1100 m2/g.

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页码：105 / 113

页数：9

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