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
收藏
页码：85 / 90
页数：6
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