Journal
CATALYSIS COMMUNICATIONS
Volume 67, Issue -, Pages 98-102Publisher
ELSEVIER
DOI: 10.1016/j.catcom.2015.04.017
Keywords
CoOx/zeolite; Heterogeneous catalysts; Catalytic epoxidation; Cyclic alkenes; Air
Categories
Funding
- National Natural Science Foundation of China [21173073, 21273064]
- Natural Science Fund for Creative Research Groups of Hubei Province of China [2014CFA015]
- Sci-tech Support Project of the Science and Technology Department of Hubei Province of China [2014BAA098]
- Key Laboratory for the Drug Synthesis and Optimization of Hubei Province
- Jingchu University of Technology [OPP2014YB04, ZR200908]
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The supported CoOx/zeolites have been prepared and applied for the epoxidation of cyclic alkenes with air. The catalysts are characterized by powder X-ray diffraction (XRD), ultraviolet-visible spectroscopy (UV-vis) and scanning electron microscope (SEM). Among these CoOx/zeolite catalysts, 2.4% CoOx/Y exhibits the best catalytic activity for the epoxidation of cis-cyclooctene with 612 mol% conversion and 98.8 mol% selectivity of epoxide. Some factors such as the kind of zeolites, the oxidants, the solvents, the Co contents, the reaction temperature and time play important roles in controlling the epoxidation. The recyclable stability of the 2.4% CoOx/Y catalyst is confirmed. (C) 2015 Elsevier B.V. All rights reserved.
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