Improving the denitration performance and K-poisoning resistance of the V2O5-WO3/TiO2 catalyst by Ce4+ 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 Ce4+ and Zr4+ co-doping
	Cao, Jun 3,4; Yao, Xiaojiang 4; Yang, Fumo 1; Chen, Li 4; Fu, Min 3,5; Tang, Changjin 2; Dong, Lin 2
刊名	Chinese Journal of Catalysis
	2019
卷号	40 期号:1 页码:95-104
ISSN号	18722067
DOI	10.1016/S1872-2067(18)63184-5
英文摘要	A series of V2O5-WO3/TiO2-ZrO2, V2O5-WO3/TiO2-CeO2, 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, H2-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. © 2019 Dalian Institute of Chemical Physics, the Chinese Academy of Sciences
语种	英语
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/9832]
专题	中国科学院重庆绿色智能技术研究院
作者单位	1.National Engineering Research Center for Flue Gas Desulfurization, School of Architecture and Environment, Sichuan University, Chengdu; Sichuan; 610065, China; 2.Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Nanjing University, Nanjing; Jiangsu; 210093, China; 3.Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing; 400067, China; 4.Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing; 400714, China; 5.Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing; 400067, 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 Ce4+ 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 Ce4+ 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 Ce4+ and Zr4+ co-doping".Chinese Journal of Catalysis 40.1(2019):95-104.