Improvement of Nb Doping on SO2 Resistance of VOx/CeO2 Catalyst for the Selective Catalytic Reduction of NOx with NH3

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 大气污染控制中心

	Improvement of Nb Doping on SO2 Resistance of VOx/CeO2 Catalyst for the Selective Catalytic Reduction of NOx with NH3
	Shan, Wenpo; Lian, Zhihua; Liu, Fudong; He, Hong
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2017-04-13
卷号	121 期号:14 页码:7803-7809
关键词	Antibiotic Resistance Genes Swine Wastewater Biological Wastewater Treatment Class 1 Integron Antibiotic Resistant Bacteria Real-time Polymerase Chain Reaction
英文摘要	The influence of sulfation treatment on Nb-VOx/CeO2 and VOx/CeO2 catalysts for the selective catalytic reduction (SCR) of NOx with NH3 was fully investigated. The Nb VOx/CeO2 catalyst showed higher catalytic activity and stronger resistance to SO2 than VOx/CeO2. The formation of sulfates, small specific surface area, and reduction in the number of active sites were all responsible for the low catalytic activity over VOx/CeO2 after sulfation under SCR conditions. On the contrary, Nb VOx/CeO2 adsorbed much more nitrate than sulfate when sulfated under SCR conditions and showed much higher NH3-SCR activity than VOx/CeO2 after the same treatment. After sulfation by SO2 + O-2 only, instead of sulfation under SCR conditions, both of the samples exhibited decreased NH3-SCR activity, mainly due to the formation of sulfates and the blockage of the Langmuir-inshelwood reaction pathway.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39204]
专题	生态环境研究中心_大气污染控制中心
推荐引用方式 GB/T 7714	Shan, Wenpo,Lian, Zhihua,Liu, Fudong,et al. Improvement of Nb Doping on SO2 Resistance of VOx/CeO2 Catalyst for the Selective Catalytic Reduction of NOx with NH3[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2017,121(14):7803-7809.
APA	Shan, Wenpo,Lian, Zhihua,Liu, Fudong,&He, Hong.(2017).Improvement of Nb Doping on SO2 Resistance of VOx/CeO2 Catalyst for the Selective Catalytic Reduction of NOx with NH3.JOURNAL OF PHYSICAL CHEMISTRY C,121(14),7803-7809.
MLA	Shan, Wenpo,et al."Improvement of Nb Doping on SO2 Resistance of VOx/CeO2 Catalyst for the Selective Catalytic Reduction of NOx with NH3".JOURNAL OF PHYSICAL CHEMISTRY C 121.14(2017):7803-7809.