Promotional effect of WO3 on O2- over V2O5/TiO2 catalyst for selective catalytic reduction of NO with NH3

被引：88

作者：

Zhang, Shule ^{[1
]}

Zhong, Qin ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Jiangsu, Peoples R China

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2013年 / 373卷

基金：

高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

WO3; O-2(-); Reduced V2O5; VWTi catalyst; SCR; V2O5/WO3-TIO2 SCR CATALYSTS; OXIDE CATALYSTS; PHOTOCATALYTIC ACTIVITY; V2O5-WO3/TIO2; CATALYST; CHEMICAL DEACTIVATION; LUBRICATION OILS; UREA SOLUTION; OXIDATION; MECHANISM; ADDITIVES;

D O I：

10.1016/j.molcata.2013.03.011

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：

Promotional effect of WO3 on the formation of O-2(-) over V2O5/TiO2 catalyst for selective catalytic reduction of NO with NH3 was studied. The aim of this novel design was to investigate the role of tungsten species in electrons transfer over the ternary VWTi catalysts. Analysis by XRD, XPS, PL and EPR showed that WO3 species improved the electrons transfer of the catalysts to facilitate the formation of reduced V2O5 that was important to improve the formation of superoxide ions. This property was remarkably different from that of the VTi catalyst and it could contribute to a new understanding of the catalytic behavior of VWTi catalyst in low-temperature SCR processes. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：108 / 113

页数：6

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