Chem. J. Chinese Universities ›› 2025, Vol. 46 ›› Issue (4): 20240555.doi: 10.7503/cjcu20240555

• Physical Chemistry • Previous Articles     Next Articles

Synergistic Catalysis Air Epoxidation of Di-olefins by Spindle-shaped Cobalt-containing MOFs Materials

ZHANG Wang, LU Xinhuan(), DONG Yanhong, GUO Haotian, YAN Shan, ZHOU Dan, XIA Qinghua()   

  1. Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals,Ministry?of?Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules,Hubei University,Wuhan 430062,China
  • Received:2024-12-20 Online:2025-04-10 Published:2025-03-05
  • Contact: LU Xinhuan E-mail:xinhuan003@aliyun.com;xiaqh518@aliyun.com
  • Supported by:
    the National Natural Science Foundation of China(22072038);the Open Funding Project of Hubei Provincial Key Laboratory of Drug Synthesis and Optimization, China(ZD202302);the Open Funding Project of Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals, China(HKLB2414)

Abstract:

Metal-organic frameworks(MOFs), renowned for their adjustable acidity and surface architecture, have garnered significant attention in the realm of heterogeneous catalysis. The present study introduces the design and synthesis of the cobalt-incorporated, shuttle-shaped bimetallic MOF that facilitates the air epoxidation of mixed bi-olefins under water bath heating conditions, effectively overcoming the challenges of bi-olefins reactions under water bath heating. The synthesized material was comprehensively characterized through X-ray diffraction(XRD), scanning electron microscopy(SEM), and X-ray photoelectron spectroscopy(XPS). The cobalt-containing MOFs exhibited the unique capability to catalyze the air epoxidation of bi-olefins in the absence of reducing agents or initiators, achieving a marked enhancement in efficiency when compared to the epoxidation of mono-olefin. NN-dimethyl formamide(DMF) as the solvent and in a simple water bath with magnetic stirring at 90 ℃ for 5 h, the material demonstrated excellent conversion of 97.0% and 98.8%, respectively, for the mixture of cyclooctene and styrene; concurrently, their epoxide selectivities were found to be 98.4% and 92.7%, respectively. Furthermore, the catalyst has not been deactivated after being recycled for many times, which indicated the good cycle stability of the catalyst.

Key words: Shuttle-shaped cobalt-containing MOFs material, Synergistic catalysis, Bi-olefins, Air epoxidation

CLC Number: 

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