期刊
NANOSCALE
卷 10, 期 4, 页码 1591-1597出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7nr08882e
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资金
- National Natural Science Foundation of China [91222203, 61201105, 51303185]
- Ministry of Science and Technology of China [2014CB643600, 2015CB856502]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB12030300, XDB12010400, XDB12020200]
In this work, we synthesized a series of microcrystalline MnxN100-x-MOF-74 (N = Fe, Co and Ni) materials by a one-pot reaction. Powder X-ray diffraction (PXRD) patterns of MnxN100-x-MOF-74 matched well with those of single-metal MOF-74, and the scanning electron microscopy (SEM) images exhibited homogeneous nanocrystallites aggregated together. The amounts and dispersion of metals were analyzed by using inductively coupled plasma (ICP) and energy-dispersive X-ray spectroscopy (EDS), separately. MnxN100-x-MOF-74 could remain crystalline and efficiently catalyze the epoxidation of alkenes in DMF with NaHCO3 and 30% H2O2. In particular, Mn29.39Fe70.61-MOF-74 can achieve almost 100% conversion for styrene with 95.0% selectivity towards styrene oxide and be reused at least five times without loss of activity.
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