THE ADSORPTIVE DECOMPOSITION OF NITROUS OXIDE ON SUPPORTED COPPER CATALYSTS : THE INFLUENCE OF THE METALLIC DISPERSION AND TYPE OF SUPPORT ON THE SUBSURFACE OXIDATION

被引：19

作者：

Luys, M. -J. ^{[1
]}

van Oeffelt, P. H. ^{[1
]}

Pieters, P. ^{[1
]}

Ter Veen, R. ^{[1
]}

机构：

[1] DSM Res BV, NL-6160 MD Geleen, Netherlands

来源：

CATALYSIS TODAY | 1991年 / 10卷 / 03期

关键词：

Calorimetry - Catalysis - Nitrogen Compounds - Surfaces - Oxidation;

D O I：

10.1016/0920-5861(91)80008-W

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The adsorptive decomposition of nitrous oxide on supported copper catalysts has been studied by combining gravimetric and calorimetric measurements. It is shown that the rate of surface oxidation is independent of the metallic dispersion for silica supported catalysts prepared by homogeneous deposition precipitation and impregnation. Cu-on-gamma alumina catalysts are very sensitive to subsurface oxidation. The total heat of adsorption increases with metallic dispersion, if dispersion is varied from 0.13 to 8.52 %.

引用

页码：283 / 292

页数：10