Oxide nanoparticles within a host microporous matrix: Polynuclear copper species in Cu-ZM5 and their role in the reduction of NO

被引：15

作者：

Centi, G

Fazzini, F

Galli, A

机构：

[1] Univ Messina, Dept Ind Chem, I-98166 Messina, Italy

[2] Dept Ind Chem & Mat, I-40136 Bologna, Italy

来源：

RESEARCH ON CHEMICAL INTERMEDIATES | 1998年 / 24卷 / 05期

关键词：

D O I：

10.1163/156856798X00069

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The role of copper-oxide nanoparticles inside a host ZSMS zeolite, identified by UV-Visible-NIR diffuse reflectance spectroscopy on the reactivity in NO reduction to N-2 in the presence of propane/O-2 or ammonia/O-2 is discussed. These species lead to an enhancement in the rate of alkane depletion in the reduction of NO in the presence of propane/O-2, whereas they cooperate with isolated ions al exchangeable sites in determining the overall catalytic behaviour in NO reduction in the presence of ammonia/O-2. Also the stability of these species depends on the type of reductant.

引用

页码：541 / 550

页数：10

共 9 条

[1]

ARMOR JN, 1995, SCI TECHNOLOGY CATAL, P51

[2] NATURE OF ACTIVE SPECIES IN COPPER-BASED CATALYSTS AND THEIR CHEMISTRY OF TRANSFORMATION OF NITROGEN-OXIDES [J].