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Preparation and characterization of Cu-doped mesoporous CeO2 for CO oxidation

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Abstract

Mesoporous CeO2 was first synthesized by hydrothermal method, and then used to synthesize different contents of CuO) x /CeO2 (x: molar ratio of Cu to Ce) by deposition-precipitation method. These materials were characterized by X-ray diffraction (XRD), N2 adsorption and desorption, H2 temperature programmed reduction (H2-TPR) and O2 temperature programmed desorption (O2-TPD) to study the crystal structure, surface area, and the mechanism of CO oxidation. The results show that, on XRD patterns, no evidence of CuO diffraction peaks is present until Cu loading is increased to 20%. The BET surface area decreases noticeably with the increase of Cu content. Compared with other samples, the better reducibility and activity oxygen species of (CuO)10%/CeO2 coincide with its better catalytic activity.

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Authors and Affiliations

  1. Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, Kunming University of Science and Technology, Kunming, 650093, China

    Jun-jie Tian  (田俊杰), Wei Na  (纳薇), Hua Wang  (王华) & Wen-gui Gao  (高文桂)

  2. State Key Laboratory Breeding Base of Complex Nonferrous Metal Resources Cleaning Utilization in Yunnan Province, Kunming, 650093, China

    Jun-jie Tian  (田俊杰), Wei Na  (纳薇), Hua Wang  (王华) & Wen-gui Gao  (高文桂)

  3. Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China

    Jun-jie Tian  (田俊杰)

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  1. Jun-jie Tian  (田俊杰)
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  2. Wei Na  (纳薇)
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  3. Hua Wang  (王华)
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  4. Wen-gui Gao  (高文桂)
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Correspondence to Wei Na  (纳薇).

Additional information

Foundation item: Project(2011FZ030) supported by the Natural Science Foundation of Yunnan Province, China; Projects(2011144, 2011221) supported by Analysis and Test Foundation of Kunming University of Science and Technology, China

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Tian, Jj., Na, W., Wang, H. et al. Preparation and characterization of Cu-doped mesoporous CeO2 for CO oxidation. J. Cent. South Univ. 21, 482–486 (2014). https://doi.org/10.1007/s11771-014-1964-x

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  • DOI: https://doi.org/10.1007/s11771-014-1964-x

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