Enhanced catalytic performance of V2O5-WO3/Fe2O3/TiO2 microspheres for selective catalytic reduction of NO by NH3

被引：123
作者：
Gao, Ruihua [1 ]
Zhang, Dengsong [1 ,2 ]
Liu, Xingang [3 ]
Shi, Liyi [1 ,2 ]
Maitarad, Phornphimon [1 ]
Li, Hongrui [1 ]
Zhang, Jianping [2 ]
Cao, Weiguo [2 ]
机构：
[1] Shanghai Univ, Res Ctr Nano Sci & Technol, Shanghai 200444, Peoples R China
[2] Shanghai Univ, Dept Chem, Shanghai 200444, Peoples R China
[3] Fudan Univ, Ctr Anal & Measurement, Shanghai 200433, Peoples R China
来源：
CATALYSIS SCIENCE & TECHNOLOGY | 2013年 / 3卷 / 01期
基金：
中国国家自然科学基金;
关键词：
PILLARED CLAY CATALYSTS; LOW-TEMPERATURES; V2O5/TIO2; CATALYSTS; OXIDE CATALYSTS; SCR CATALYSTS; AQUEOUS H2O2; NITRIC-OXIDE; AMMONIA; OXIDATION; IRON;
D O I：
10.1039/c2cy20332d
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 V2O5-WO3/Fe2O3/TiO2 microsphere catalysts were prepared by an impregnation method. The catalytic test results showed that the Fe2O3 additives in V2O5-WO3/Fe2O3/TiO2 improved the NO decomposition in the temperature range of 200-400 degrees C. The characterization results indicated that the iron oxides mainly existed in the form of Fe2O3, which was beneficial for the oxidation of NO to NO2. Meanwhile, the superior catalytic performance of V2O5-WO3/Fe2O3/TiO2 for the selective catalytic reduction of NO has been attributed to its highly dispersed active species, and lots of surface adsorbed oxygen. Prominently, the activity of V2O5-WO3/Fe2O3/TiO2 microspheres can be recovered after cutting off SO2, and thus these combination metal oxide catalysts show not only high catalytic activities but also good resistance to SO2.
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收藏
页码：191 / 199
页数：9
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