Magnetically Responsive Core–Shell Pd/Fe3O4@C Composite Catalysts for the Hydrogenation of Cinnamaldehyde
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Abstract
Magnetically responsive Pd/Fe3O4@C catalysts have been successfully prepared by depositing Pd nanoparticles onto the surface of Fe3O4@C composites. Various techniques such as XRD, SEM, TEM, SQUID etc. have been used to characterize the composite catalysts. The obtained catalysts, consisting of core–shell structured microspheres with high uniformity, show a good superparamagnetic property. The selective hydrogenation of cinnamaldehyde on the magnetic catalysts has been investigated, achieving about 70 % selectivity to hydrocinnamaldehyde at 100 % conversion. Moreover, the magnetic catalyst can be easily recovered under an external magnetic field and reused for seven cycles without any degradation in activity.
Graphical Abstract
Keywords
Heterogeneous catalysis Magnetic separation Hydrogenation Cinnamaldehyde SuperparamagnetismNotes
Acknowledgments
The financial supports by the Natural Science Foundation of China (21101139 and 21371152) are gratefully acknowledged. XQ also thanks Dr. Deli Chen for constructive discussion and helpful language suggestions.
Supplementary material
References
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