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	Polymeric vanadyl species determine the low-temperature activity of V-based catalysts for the SCR of NOx with NH3
	He, Guangzhi; Lian, Zhihua; Yu, Yunbo; Yang, Yang; Liu, Kuo; Shi, Xiaoyan; Yan, Zidi; Shan, Wenpo; He, Hong
刊名	SCIENCE ADVANCES
	2018-11-01
卷号	4期号:11页码:-
ISSN号	2375-2548
文献子类	Article
英文摘要	The structure of dispersed vanadyl species plays a crucial role in the selective catalytic reduction (SCR) of NO with NH3 over vanadia-based catalysts. Here, we demonstrate that the polymeric vanadyl species have a markedly higher NH3-SCR activity than the monomeric vanadyl species. The coupling effect of the polymeric structure not only shortens the reaction pathway for the regeneration of redox sites but also substantially reduces the overall reaction barrier of the catalytic cycle. Therefore, it is the polymeric vanadyl species, rather than the monomeric vanadyl species, that determine the NH3-SCR activity of vanadia-based catalysts, especially under low-temperature conditions. The polymeric vanadia-based SCR mechanism reported here advances the understanding of the working principle of vanadia-based catalysts and paves the way toward the development of low vanadium-loading SCR catalysts with excellent low-temperature activity.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/40829]
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	He, Guangzhi,Lian, Zhihua,Yu, Yunbo,et al. Polymeric vanadyl species determine the low-temperature activity of V-based catalysts for the SCR of NOx with NH3[J]. SCIENCE ADVANCES,2018,4(11):-.
APA	He, Guangzhi.,Lian, Zhihua.,Yu, Yunbo.,Yang, Yang.,Liu, Kuo.,...&He, Hong.(2018).Polymeric vanadyl species determine the low-temperature activity of V-based catalysts for the SCR of NOx with NH3.SCIENCE ADVANCES,4(11),-.
MLA	He, Guangzhi,et al."Polymeric vanadyl species determine the low-temperature activity of V-based catalysts for the SCR of NOx with NH3".SCIENCE ADVANCES 4.11(2018):-.

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