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Inverse CeO2/CuO Catalysts Prepared by Hydrothermal Method for Preferential CO Oxidation

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Abstract

The CeO2/CuO catalysts with different precipitants were synthesized by the hydrothermal method and characterized via a variety of techniques. The study shows that the CeO2/CuO–U has different morphology from the other catalysts, which is related to its highest BET surface area. The performance tests suggest that the highly dispersed CuO is favorable for CO adsorption at low temperature, and the high-temperature activity is closely associated with the reduction of bulk CuO. The CeO2/CuO–N and CeO2/CuO–U catalysts display the wider temperature window of CO total conversion than the other catalysts.

Graphical Abstract

SEM images of the catalysts: d CeO2/CuO–T, e CeO2/CuO–U. The CeO2/CuO–U has different morphology from the other catalysts, which is related to its highest BET surface area. The particle-like appearance is bulk CuO. The filamentous and bowl-like structures are composed of the ~5 nm CeO2 crystallites

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Acknowledgments

The authors acknowledge National Natural Science Foundation of China (21066004 and 21061008).

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China

    Shanghong Zeng, Wenli Zhang, Na Liu & Haiquan Su

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  1. Shanghong Zeng
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  2. Wenli Zhang
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  3. Na Liu
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  4. Haiquan Su
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Correspondence to Haiquan Su.

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Zeng, S., Zhang, W., Liu, N. et al. Inverse CeO2/CuO Catalysts Prepared by Hydrothermal Method for Preferential CO Oxidation. Catal Lett 143, 1018–1024 (2013). https://doi.org/10.1007/s10562-013-1065-8

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  • DOI: https://doi.org/10.1007/s10562-013-1065-8

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