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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 PublicationCHEMCATCHEM
ISSN1867-3880
Volume9Issue:16Pages:3226-3235
Subtype期刊论文
AbstractHerein, 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.
KeywordTemperature Co Oxidation Ray-absorption Spectroscopy Area Cuo-ceo2 Catalysts Oxygen Storage Ion Batteries Ch4 Oxidation Metal-oxides Sno2 Surface Ce
DOI10.1002/cctc.201700460
Indexed BySCI
WOS KeywordTEMPERATURE CO OXIDATION ; RAY-ABSORPTION SPECTROSCOPY ; AREA CUO-CEO2 CATALYSTS ; OXYGEN STORAGE ; ION BATTERIES ; CH4 OXIDATION ; METAL-OXIDES ; SNO2 ; SURFACE ; CE
Language英语
WOS IDWOS:000408175500020
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28704
Collection中科院上海应用物理研究所2011-2019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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