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Facile strategy to construct porous CuO/CeO2 nanospheres with enhanced catalytic activity toward CO catalytic oxidation at low temperature

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Abstract

Porous CuO/CeO2 nanospheres are synthesized by a facile route, which involves a template-free solvothermal method to obtain porous CeO2 nanospheres, followed by a deposition–precipitation (DP) method of as-prepared porous CeO2 nanospheres and Cu(NO3)2 solution. XRD, TEM, SEM, ICP-MS, and EDS elemental mapping confirm that the obtained porous CuO/CeO2 nanospheres are composed of CeO2 nanospheres decorated with small particle size and well-dispersed CuO nanoparticles (NPs). Meanwhile, the activity of CO catalytic oxidation study is tested; porous CuO/CeO2 nanospheres exhibit signally higher activity than undecorated CeO2 nanospheres and solid CuO/CeO2 nanospheres at low temperature. The improved performance of porous CuO/CeO2 nanospheres is possibly ascribed to the synergetic effect and strong interaction between porous CeO2 nanospheres and decorated CuO NPs.

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Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (Grant No. 51671094) and Dezhou University Scientific Research Fund Program (Grant No. 2020xjrc217).

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Authors and Affiliations

  1. Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, 253023, People’s Republic of China

    Yunwei Wei, Jian Liu, Shujuan Lyu, Chunhui Li & Jiafeng Yu

  2. Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250103, People’s Republic of China

    Yiwei Li

  3. China Shandong Provincial Key Laboratory of Biosensors, Jinan, 250103, People’s Republic of China

    Yiwei Li

  4. Shandong Marine Resource and Environment Research Institute, Yantai, 264006, People’s Republic of China

    Dianfeng Han

  5. CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, People’s Republic of China

    Yang Tan

  6. The Institute for Advanced Study of Coastal Ecology, Key Laboratory of Ecological Restoration and Conservation of Coastal Wetlands in Universities of Shandong (Ludong University), Ludong University, Yantai, 264003, People’s Republic of China

    Zhikang Wang

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  1. Yunwei Wei
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Wei, Y., Li, Y., Han, D. et al. Facile strategy to construct porous CuO/CeO2 nanospheres with enhanced catalytic activity toward CO catalytic oxidation at low temperature. Appl Nanosci 13, 3633–3641 (2023). https://doi.org/10.1007/s13204-021-02334-0

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