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http://dx.doi.org/10.5012/bkcs.2006.27.9.1381

Styrene Epoxidation over Cobalt Cyclam Immobilized SBA-15 Catalyst  

Sujandi (Lab. of Nano-Green Catalysis and Nano Center for Fine Chemicals Fusion Technology, Department of Chemistry,Inha University)
Prasetyanto, Eko Adi (Lab. of Nano-Green Catalysis and Nano Center for Fine Chemicals Fusion Technology, Department of Chemistry,Inha University)
Han, Sang-Cheol (Lab. of Nano-Green Catalysis and Nano Center for Fine Chemicals Fusion Technology, Department of Chemistry,Inha University)
Park, Sang-Eon (Lab. of Nano-Green Catalysis and Nano Center for Fine Chemicals Fusion Technology, Department of Chemistry,Inha University)
Publication Information
Bulletin of the Korean Chemical Society / v.27, no.9, 2006 , pp. 1381-1385 More about this Journal
Abstract
Cobalt (cyclam) complex has been successfully immobilized onto SBA-15, and proven to be an active catalyst for the epoxidation of styrene with tert-butyl hydroperoxide as a terminal oxidant. The selectivity for styrene oxide was observed to be up to 66% with 40% styrene conversion after 12h reaction time. The reversible redox cycle between Co(III) and Co(II) couple which was supposed to play key role during the epoxidation reaction was supported by a cyclic voltametry analysis. The textural properties of the catalyst was characterized by XRD, N2 adsorption-desorption, and TEM analysis.
Keywords
Co; SBA-15; Heterogeneous catalyst; Epoxidation; Styrene;
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