Catalytic decomposition of N2O over MxCo1-xCo2O4 (M = Ni, Mg) spinel oxides

被引：124

作者：

Yan, L ^{[1
]}

Ren, T ^{[1
]}

Wang, XL ^{[1
]}

Ji, D ^{[1
]}

Suo, JS ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2003年 / 45卷 / 02期

关键词：

greenhouse gases; nitrous oxide; N2O; catalytic decomposition; spinel oxide;

D O I：

10.1016/S0926-3373(03)00174-7

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 catalytic decomposition of N2O to N-2 and O-2 was carried out on the MxCo1-xCo2O4 (M = Ni2+ and Mg2+, x = 0.0-0.99) spinel catalysts. The results showed that the partial replacement of Co2+ by Ni2+ or Mg2+ in Co3O4 spinel oxide led to a significant improvement in the catalytic activity for the N2O decomposition, and the catalytic activity depended on the degree of Co2+ substitution by Ni2+ or Mg2+. The conversion of N2O reached 100% over the Ni0.74Co0.26Co2O4 and Mg0.54Co0.46Co2O4 catalysts at 200degreesC and 300degreesC in the absence and presence of excess O-2 and water steam, respectively. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：85 / 90

页数：6

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