Enhanced activity of tungsten modified CeO2/TiO2 for selective catalytic reduction of NOx with ammonia

doi:10.1016/j.cattod.2010.01.062

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	Enhanced activity of tungsten modified CeO2/TiO2 for selective catalytic reduction of NOx with ammonia
	Chen, Liang 1,2,4; Li, Junhua 1; Ge, Maofa 2; Zhu, Ronghai 3
刊名	CATALYSIS TODAY
	2010-08-01
卷号	153 期号:3-4 页码:77-83
关键词	Nox Scr Ammonia Tungsten Oxide Cerium Oxide Cewti
ISSN号	0920-5861
DOI	10.1016/j.cattod.2010.01.062
英文摘要	A series of W-doped CeO2/TiO2 catalysts prepared by different impregnation methods assisted with ultrasonic energy were investigated for the selective catalytic reduction (SCR) of NOx (NO and NO2) by NH3 The activity of the CeO2/TiO2 catalyst was enhanced by the addition of W with all the methods, while the promotional effect was pronounced for catalyst prepared by co-impregnation method. The catalytic activity of 10% CeO2/TiO2 (CeTi) was greatly enhanced by the addition of 6%WO3 in the broad temperature range of 200-500 degrees C BET, XRD, XPS and TPD methods revealed that the co-impregnation method could make CeO2 and WO3 crystallites disperse better over the catalyst surface, and much stronger interaction happened between Ce and W for the more appearance of Ce3+. The addition of tungsten could bring mole ad-NOx and ad-NH3 adsorption species, and simultaneously enhanced the catalytic activity for NH3-SCR of NOx (C) 2010 Elsevier B V All rights reserved
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000280534300003
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/71203]
专题	中国科学院化学研究所
通讯作者	Li, Junhua
作者单位	1.Tsinghua Univ, Dept Environm Sci & Engn, Beijing 100084, Peoples R China 2.Chinese Acad Sci, State Key Lab Struct Chem Unstable & Stable Speci, Inst Chem, Beijing 100190, Peoples R China 3.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Chen, Liang,Li, Junhua,Ge, Maofa,et al. Enhanced activity of tungsten modified CeO2/TiO2 for selective catalytic reduction of NOx with ammonia[J]. CATALYSIS TODAY,2010,153(3-4):77-83.
APA	Chen, Liang,Li, Junhua,Ge, Maofa,&Zhu, Ronghai.(2010).Enhanced activity of tungsten modified CeO2/TiO2 for selective catalytic reduction of NOx with ammonia.CATALYSIS TODAY,153(3-4),77-83.
MLA	Chen, Liang,et al."Enhanced activity of tungsten modified CeO2/TiO2 for selective catalytic reduction of NOx with ammonia".CATALYSIS TODAY 153.3-4(2010):77-83.