Catalytic performance of indium-supported TiO2-ZrO2 for the selective reduction of nitrogen monoxide in the presence of oxygen

被引：27

作者：

Kintaichi, Y ^{[1
]}

Haneda, M ^{[1
]}

Inaba, M ^{[1
]}

Hamada, H ^{[1
]}

机构：

[1] NATL INST MAT & CHEM RES,TSUKUBA,IBARAKI 305,JAPAN

来源：

CATALYSIS LETTERS | 1997年 / 48卷 / 1-2期

关键词：

nitrogen monoxide; selective reduction; binary oxide; In-supported TiO2-ZrO2; TPR;

D O I：

10.1023/A:1019042013060

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 activity of indium-supported TiO2-ZrO2 binary metal oxide for the selective reduction of NO with propene in the presence of oxygen was investigated. The supported indium caused a drastic enhancement of NO reduction activity of TiO2-ZrO2. It was suggested that the ''dispersed phase'' of indium oxide, which is reduced at lower temperature in temperature-programmed reduction (TPR), is responsible for the high activity. Propene served as the most efficient reducing agent, while oxygenated hydrocarbons were not good ones. A reaction mechanism was proposed that N-2 is formed through the reaction of propene and NO2, which was formed on the acid sites of TiO2-ZrO2, on the indium sites.

引用

页码：121 / 127

页数：7

共 22 条

[1] Selective catalytic reduction of nitric oxide by hydrocarbons [J].