Ceria modified MnOx/TiO2 as a superior catalyst for NO reduction with NH3 at low-temperature

被引：707

作者：

Wu, Zhongbiao ^{[1
]}

Jin, Ruiben ^{[1
]}

Liu, Yue ^{[1
]}

Wang, Haiqiang ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Environm Engn, Hangzhou 310027, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2008年 / 9卷 / 13期

基金：

中国国家自然科学基金;

关键词：

selective catalytic reduction; Ce modified MnOx/TiO2; low-temperature; sol-gel;

D O I：

10.1016/j.catcom.2008.05.001

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：

A series of cerium modified MnOx/TiO2 catalysts were prepared by sol-gel method and used for low-temperature selective catalytic reduction (SCR) of NOx with ammonia. The experimental results showed that NO conversion could be improved by doping Ce from 39% to 84% at 80 degrees C with a gas hourly space velocity (GHSV) of 40,000 h(-1). This activity improvement may be contributed to the increase of chemisorbed oxygen and acidity after Ce doping. TPR results also verified that the redox property of Ce modified MnOx/TiO2 was enhanced at low-temperature. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：2217 / 2220

页数：4

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