Insight into Copper Oxide-Tin Oxide Catalysts for the Catalytic Oxidation of Carbon Monoxide: Identification of Active Copper Species and a Reaction Mechanism

doi:10.1002/cctc.201700460

	Insight into Copper Oxide-Tin Oxide Catalysts for the Catalytic Oxidation of Carbon Monoxide: Identification of Active Copper Species and a Reaction Mechanism
	Cheng, QP; Bai, XQ; Chai, SJ; Liu, C; Ma, K; Tian, Y; Ding, T; Jiang, Z; Zhang, J; Zheng, LR
刊名	CHEMCATCHEM
	2017
卷号	9 期号:16 页码:3226-3235
关键词	copper tin catalytic oxidation carbon monoxide reaction mechanisms
ISSN号	1867-3880
DOI	10.1002/cctc.201700460
文献子类	Article
英文摘要	Herein, we report the high activity of CuO-SnO2 catalysts for the catalytic oxidation of CO. In particular, SnCu30 shows the highest activity and a high water resistance. If we compare the XRD, X-ray absorption fine structure, and H-2 temperature-programmed reduction results of SnCu30 before and after HNO3 treatment, we find the existence of three kinds of Cu species in the catalyst, that is, highly dispersed CuO, bulk CuO, and Cu incorporated in the SnO2 lattice. The highly dispersed CuO and the surface lattice oxygen species are the active sites for the catalytic oxidation of CO. We used X-ray photoelectron spectroscopy and in situ diffuse reflectance infrared Fourier transform spectroscopy to confirm the existence of Cu+ species on the surface of the CuO-SnO2 catalysts, which can provide the adsorption sites for CO. Our results show that the reaction pathways of the catalytic oxidation of CO over the CuO-SnO2 catalysts follow the Mars-van Krevelen model.
电子版国际标准刊号	1867-3899
WOS关键词	TEMPERATURE CO OXIDATION ; RAY-ABSORPTION SPECTROSCOPY ; AREA CUO-CEO2 CATALYSTS ; OXYGEN STORAGE ; ION BATTERIES ; CH4 OXIDATION ; METAL-OXIDES ; SNO2 ; SURFACE ; CE
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:000408175500020
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/285258]
专题	高能物理研究所_多学科研究中心高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Cheng, QP,Bai, XQ,Chai, SJ,et al. Insight into Copper Oxide-Tin Oxide Catalysts for the Catalytic Oxidation of Carbon Monoxide: Identification of Active Copper Species and a Reaction Mechanism[J]. CHEMCATCHEM,2017,9(16):3226-3235.
APA	Cheng, QP.,Bai, XQ.,Chai, SJ.,Liu, C.,Ma, K.,...&郑黎荣.(2017).Insight into Copper Oxide-Tin Oxide Catalysts for the Catalytic Oxidation of Carbon Monoxide: Identification of Active Copper Species and a Reaction Mechanism.CHEMCATCHEM,9(16),3226-3235.
MLA	Cheng, QP,et al."Insight into Copper Oxide-Tin Oxide Catalysts for the Catalytic Oxidation of Carbon Monoxide: Identification of Active Copper Species and a Reaction Mechanism".CHEMCATCHEM 9.16(2017):3226-3235.