Low-temperature selective catalytic reduction of NO on MnOx/TiO2 prepared by different methods

被引：245

作者：

Jiang, Boqiong ^{[1
]}

Liu, Yue ^{[1
]}

Wu, Zhongbiao ^{[1
]}

机构：

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

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 162卷 / 2-3期

基金：

中国国家自然科学基金;

关键词：

MnOx/TiO2; Sol-gel; Impregnation; Coprecipitation; Interaction; MANGANESE OXIDES; NH3; SCR; MNOX/AL2O3; DEACTIVATION; ADSORPTION; MECHANISM; OXIDATION; REMOVAL; TITANIA;

D O I：

10.1016/j.jhazmat.2008.06.013

中图分类号：

X [环境科学、安全科学];

学科分类号：

083001 [环境科学];

摘要：

Catalysts based on MnOx/TiO2 were prepared by sol-gel, impregnation, and coprecipitation methods for low-temperature selective catalytic reduction (SCR) of NO with NH3. Among the catalysts, the sample prepared by sol-gel method had the best performance on both activity and SO2. resistance. From the results of thermo gravimetric analysis (TGA), X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectrum (XPS), it was known that manganese oxides and titania existed in different phase in the samples prepared by three methods. Strong interaction, large surface area, high concentration of hydroxyl groups, high concentration of amorphous Mn on the surface might be the main reasons for the excellent performance of the catalysts. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1249 / 1254

页数：6

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