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

Paper ID Volume ID Publish Year Pages File Format Full-Text
50539 46801 2015 5 PDF Available
Title
Synthesis and catalytic activity of organic–inorganic hybrid catalysts coordinated with cobalt(II) ions for aerobic epoxidation of styrene
Abstract

•Hybrid Co–HM was prepared via DGC synthesis and coordination with Co2 + ions.•Co–HM was firstly applied in the aerobic epoxidation of alkenes.•Co-coordinated organic–inorganic hybrid material Co–HM-50 was the most active.•The best result was 95.8 mol% conversion of styrene with 89.2% epoxide selectivity.•The catalysts are highly reusable heterogeneous catalysts.

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.

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Keywords
Organic–inorganic hybrid material; Co–HM-50; Styrene; Epoxidation; Air
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Synthesis and catalytic activity of organic–inorganic hybrid catalysts coordinated with cobalt(II) ions for aerobic epoxidation of styrene
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 61, 10 February 2015, Pages 48–52
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
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