Styrene Epoxidation over Cobalt Cyclam Immobilized SBA-15 Catalyst

Bulletin of the Korean chemical society

Sujandi¹  Sang-Eon Park¹  Eko Adi Prasetyanto¹  Sang-Cheol Han¹ 

关键词: Co;    SBA-15;    Heterogeneous catalyst;    Epoxidation;    Styrene;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

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.

【 授权许可】

Unknown