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

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	Insight into Copper Oxide-Tin Oxide Catalysts for the Catalytic Oxidation of Carbon Monoxide: Identification of Active Copper Species and a Reaction Mechanism
	Bai, XQ; Chai, SJ; Liu, C; Ma, K; Cheng, QP; Tian, Y; Ding, T; Jiang, Z; Zhang, J; Zheng, LR; Li, XG
	2017
Source Publication	CHEMCATCHEM
ISSN	1867-3880
Volume	9 Issue:16 Pages:3226-3235
Subtype	期刊论文
Abstract	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.
Keyword	Temperature Co Oxidation Ray-absorption Spectroscopy Area Cuo-ceo2 Catalysts Oxygen Storage Ion Batteries Ch4 Oxidation Metal-oxides Sno2 Surface Ce
DOI	10.1002/cctc.201700460
WOS Keyword	TEMPERATURE CO OXIDATION ; RAY-ABSORPTION SPECTROSCOPY ; AREA CUO-CEO2 CATALYSTS ; OXYGEN STORAGE ; ION BATTERIES ; CH4 OXIDATION ; METAL-OXIDES ; SNO2 ; SURFACE ; CE
Indexed By	SCI
Language	英语
WOS ID	WOS:000408175500020
Citation statistics	Cited Times:4[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.sinap.ac.cn/handle/331007/28704
Collection	中科院上海应用物理研究所2011-2018年
Recommended Citation GB/T 7714	Bai, XQ,Chai, SJ,Liu, C,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	Bai, XQ.,Chai, SJ.,Liu, C.,Ma, K.,Cheng, QP.,...&Li, XG.(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	Bai, XQ,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.

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