Model catalysis studies of the oxidation of propane over VOx-based catalysts

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	Model catalysis studies of the oxidation of propane over VOx-based catalysts
	Ding, Ding ; Zheng, Yanping ; Li, Huan ; Tang, Zhenyan ; Chen, Mingshu ; Wan, Huilin ; Li H(李欢) ; Chen MS(陈明树) ; Wan HL(万惠霖)
刊名	http://dx.doi.org/10.1016/j.cattod.2014.05.005
	2013
关键词	Auger electron spectroscopy Carbon dioxide Catalysts Electron energy loss spectroscopy Electrons Low energy electron diffraction Oxidation Propane
英文摘要	VO x -based catalyst has been extensively used in catalysts for oxidation reactions, especially for the partial oxidation of alkanes. Our previous study showed that the VO x /Pt(111) surfaces are highly active for the complete oxidation of propane. In this article, SmO x was used as an additive for the VO x /Pt(111) model surfaces to improve the catalytic performance for the partial oxidation of C3H8. And Mo foil was used to replace Pt to examine the substrate effect on the VO x /SmO x . Ordered SmO x /Pt(111), VO x /SmO x /Pt(111), VO x /SmO x /Mo and VO x /Pt(111) were prepared under ultra-high-vacuum conditions and characterized using Auger electron spectroscopy, low-energy electron diffraction and high-resolution electron energy loss spectroscopy. The results show that the main product is CO2 with a small amount of CO on the Pt substrate. The SmO x layer on the Pt(111) surface or between VO x and Pt(111) suppresses the activities of both Pt and VO x /Pt, but enhances the selectivity to CO. Replacing Pt(111) with a Mo foil, VO x on SmO x /Mo shows a much lower activity, while achieves some selective product of propene. ? 2014 Elsevier B.V.
语种	英语
出版者	Elsevier B.V.
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/89652]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Ding, Ding,Zheng, Yanping,Li, Huan,et al. Model catalysis studies of the oxidation of propane over VOx-based catalysts[J]. http://dx.doi.org/10.1016/j.cattod.2014.05.005,2013.
APA	Ding, Ding.,Zheng, Yanping.,Li, Huan.,Tang, Zhenyan.,Chen, Mingshu.,...&万惠霖.(2013).Model catalysis studies of the oxidation of propane over VOx-based catalysts.http://dx.doi.org/10.1016/j.cattod.2014.05.005.
MLA	Ding, Ding,et al."Model catalysis studies of the oxidation of propane over VOx-based catalysts".http://dx.doi.org/10.1016/j.cattod.2014.05.005 (2013).