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General fabrication of MCo₂O₄@CeO₂ (M $=$ Ni, Cu, Zn, Mn) core@shell nanospheres and their catalytic performances in CO oxidation

Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou 221008, P. R. China

Key Laboratory of Coal-Based CO2 Capture and Geological Storage of Jiangsu Province, China University of Mining and Technology, Xuzhou 221008, P. R. China

E-mail Address: liuling@cumt.edu.cn

Corresponding author.

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Jingjing Shi

School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, P. R. China

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Ruiyu Wang

Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou 221008, P. R. China

Key Laboratory of Coal-Based CO2 Capture and Geological Storage of Jiangsu Province, China University of Mining and Technology, Xuzhou 221008, P. R. China

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https://doi.org/10.1142/S1793604718500017Cited by:13 (Source: Crossref)

Abstract

A facile strategy is described for general synthesis of MCo₂O₄@CeO₂ ( $M = Ni$ , Cu, Zn, Mn) core@shell nanospheres. First, uniform M,Co–glycerate were prepared and served as precursor to produce MCo₂O₄ spheres by calcination, followed by a reflux process to obtain MCo₂O₄@CeO₂ core@shell spheres. As expected, due to the synergetic effect at the interface between the two components, most of the as-prepared MCo₂O₄@CeO₂ core@shell spheres exhibited enhanced catalytic activities toward CO oxidation compared with the corresponding MCo₂O₄ spheres and CeO₂ nanoparticles.

Keywords:

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