4.6 Article

Synthesis and catalytic activity of organic-inorganic hybrid catalysts coordinated with cobalt(II) ions for aerobic epoxidation of styrene

期刊

CATALYSIS COMMUNICATIONS
卷 61, 期 -, 页码 48-52

出版社

ELSEVIER
DOI: 10.1016/j.catcom.2014.12.007

关键词

Organic-inorganic hybrid material; Co-HM-50; Styrene; Epoxidation; Air

资金

  1. National Natural Science Foundation of China [21173073, 21273064]
  2. key project of the Education Department of Hubei Province [D20141004]
  3. Natural Science Fund for Creative Research Group of Hubei Province of China [2014CFA015]
  4. Sci-tech Support Project of the Science and Technology Department of Hubei Province of China [2014BAA098]

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New organic-inorganic hybrid materials (HM) containing 3-mercaptopropyl groups (-(CH2)(3)-SH) have been synthesized through a dry gel conversion (DGC) route. The complex catalyst Co-HM was prepared through a simple coordination of -SH with cobalt(II) ions, which was firstly applied in the aerobic epoxidation of alkenes to obtain good results. Co-HM-50 exhibited the highest activity for the epoxidation of styrene with air to achieve 95.8 mol% of conversion with the epoxide selectivity of 89.2%. Recycling and control tests showed high durability and heterogeneity of Co-HM-50 as a heterogeneous catalyst. (C) 2014 Elsevier B.V. All rights reserved.

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