Journal
CHEMICAL ENGINEERING JOURNAL
Volume 423, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2021.130237
Keywords
Alcohols oxidation under mild conditions; Heck reactions; Magnetic separation; Yolk-shell structure; Palladium-based magnetic porous composite nanocatalyst
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Funding
- National Natural Science Foundation of China [21574042, 51273066]
- Fundamental Research Funds for the Central Universities [40500-20104-222047]
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Pd nanoparticles supported by yolk-shell magnetic porous organic nanospheres exhibit high catalytic performance and excellent magnetic recyclability, allowing for rapid separation and recovery in various reactions using external magnetic fields.
Yolk-shell magnetic porous organic nanospheres (MPONs) supported Pd nanoparticles (Pd@MPONs) were synthesized by encapsulating Fe3O4 and Pd nanoparticles in one cavity of hollow porous organic nanospheres (HPONs) using a continuous ship-in-bottle strategy. The obtained Pd@MPONs possessed a hierarchically micro/mesoporous structure, high surface area (354 m2/g) and displayed excellent magnetic response (9 emu/g). They showed high catalytic performance in the oxidation of alcohols under mild conditions and the HeckMizoroki reaction, and brilliant magnetic recyclability, they can be removed rapidly from a reaction system using external magnetic fields without any catalytic activity decrease. Hence, the Pd@MPONs are easily recoverable nanocatalysts which have practical significance in the future sustainable industry.
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