Improving the denitration performance and K-poisoning resistance of the V2O5-WO3/TiO2 catalyst by CO4+ and Zr4+ co-doping

doi:10.1016/S1872-2067(18)63184-5

	Improving the denitration performance and K-poisoning resistance of the V2O5-WO3/TiO2 catalyst by CO4+ and Zr4+ co-doping
	Cao, Jun 1,2; Yao, Xiaojiang2 ; Yang, Fumo3 ; Chen, Li 2; Fu, Min 1; Tang, Changjin 4; Dong, Lin 4
刊名	CHINESE JOURNAL OF CATALYSIS
	2019
卷号	40 期号:1 页码:95-104
关键词	V2O5-WO3/TiO2-CeO2-ZrO(2 )catalyst Co-doping K-poisoning NH3-SCR Reaction mechanism
ISSN号	0253-9837
DOI	10.1016/S1872-2067(18)63184-5
通讯作者	Yao, Xiaojiang(yaoxj@cigit.ac.cn) ; Fu, Min(fumin1022@126.com)
英文摘要	A series of V2O5-WO3/TiO2-CeO2-ZrO2, V2O5-WO3/TiO2-CeO2-ZrO2, and V2O5-WO3/TiO2-CeO2-ZrO2 catalysts were synthesized to improve the selective catalytic reduction (SCR) performance and the K-poisoning resistance of a V2O5-WO3/TiO2 catalyst. The physicochemical properties were investigated by using XRD, BET, NH3-TPD, H-2-TPR, and XPS, and the catalytic performance and K-poisoning resistance were evaluated via a NH3-SCR model reaction. Ce4+ and Zr4+ co-doping were found to enhance the conversion of NOx, and exhibit the best K-poisoning resistance owing to the largest BET-specific surface area, pore volume, and total acid site concentration, as well as the minimal effects on the surface acidity and redox ability from K poisoning. The V2O5-WO3/TiO2-CeO2-ZrO2 catalyst also presents outstanding H2O + SO2 tolerance. Finally, the in situ DRIFTS reveals that the NH3-SCR reaction over the V2O5-WO3/TiO2-CeO2-ZrO2 catalyst follows an L-H mechanism, and that K poisoning does not change the reaction mechanism. (C) 2019, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[21876168] ; National Natural Science Foundation of China[21507130] ; Key Projects for Common Key Technology Innovation in Key Industries in Chongqing[cstc2016zdcy-ztzx0020-01] ; Chongqing Science & Technology Commission[cstc2016jcyjA0070] ; Chongqing Science & Technology Commission[cstckjcxljrcl3] ; Chongqing Key Laboratory of Catalysis and Functional Organic Molecules from Chongqing Technology and Business University[1456029] ; Graduate Innovation Project of Chongqing Technology and Business University[yjscxx201803-028-22]
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000453646500011
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/7195]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Yao, Xiaojiang; Fu, Min
作者单位	1.Chongqing Technol & Business Univ, Coll Environm & Resources, Chongqing Key Lab Catalysis & New Environm Mat, Chongqing 400067, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Res Ctr Atmospher Environm, Chongqing 400714, Peoples R China 3.Sichuan Univ, Sch Architecture & Environm, Natl Engn Res Ctr Flue Gas Desulfurizat, Chengdu 610065, Sichuan, Peoples R China 4.Nanjing Univ, Ctr Modern Anal, Jiangsu Key Lab Vehicle Emiss Control, Nanjing 210093, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Cao, Jun,Yao, Xiaojiang,Yang, Fumo,et al. Improving the denitration performance and K-poisoning resistance of the V2O5-WO3/TiO2 catalyst by CO4+ and Zr4+ co-doping[J]. CHINESE JOURNAL OF CATALYSIS,2019,40(1):95-104.
APA	Cao, Jun.,Yao, Xiaojiang.,Yang, Fumo.,Chen, Li.,Fu, Min.,...&Dong, Lin.(2019).Improving the denitration performance and K-poisoning resistance of the V2O5-WO3/TiO2 catalyst by CO4+ and Zr4+ co-doping.CHINESE JOURNAL OF CATALYSIS,40(1),95-104.
MLA	Cao, Jun,et al."Improving the denitration performance and K-poisoning resistance of the V2O5-WO3/TiO2 catalyst by CO4+ and Zr4+ co-doping".CHINESE JOURNAL OF CATALYSIS 40.1(2019):95-104.