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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 27, Number 9
BKCSDE 27(9)
September 20, 2006 

Styrene Epoxidation over Cobalt Cyclam Immobilized SBA-15 Catalyst
Sujandi, Eko Adi Prasetyanto, Sang-Cheol Han, Sang-Eon Park*
Co, SBA-15, Heterogeneous catalyst, Epoxidation, Styrene
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.
1381 - 1385
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