Abstract
The catalytic activity, recyclability and selectivity are the key issues resisting the noble metal nanocatalysts in the practical applications. In the present work, core–shell-structured Fe3O4/Pd@ZIF-8 catalyst was prepared by in situ coating Fe3O4/Pd microspheres with ZIF-8 shells. The catalyst structure was characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, nitrogen adsorption–desorption and X-ray photoelectron spectroscopy. The special catalyst structure which possesses the Fe3O4 cores, Pd nanoparticles and microporous ZIF-8 shells endowed the catalyst with magnetic recyclability, high catalytic activity and size selectivity for the hydrogenation of alkenes. It is believed that this study can provide a promising strategy to prepare core–shell-structured noble metal nanocatalysts with metal-framework shells.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (51402048), DHU Distinguished Young Professor Program, the Fundamental Research Funds for the Central Universities and the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry. The authors declare that they have no conflict of interest.
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Liu, P., Liu, S. & Bian, SW. Core–shell-structured Fe3O4/Pd@ZIF-8 catalyst with magnetic recyclability and size selectivity for the hydrogenation of alkenes. J Mater Sci 52, 12121–12130 (2017). https://doi.org/10.1007/s10853-017-1357-2
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DOI: https://doi.org/10.1007/s10853-017-1357-2