Effect of surface modification on silica supported Ti catalysts for cyclohexene oxidation with vapor-phase hydrogen peroxide.
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ABSTRACT:
SUBMITTER: Ahn S
PROVIDER: S-EPMC11321206 | biostudies-literature | 2024 Aug
REPOSITORIES: biostudies-literature
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Effect of surface modification on silica supported Ti catalysts for cyclohexene oxidation with vapor-phase hydrogen peroxide.
Ahn Sol S Friedman Sarah K SK Notestein Justin M JM
RSC advances 20240813 35
Surface modification <i>via</i> grafting of organic moieties on a Lewis acid catalyst (silica supported Ti catalyst, Ti-SiO<sub>2</sub>) alters the activation of H<sub>2</sub>O<sub>2</sub> in vapor-phase cyclohexene epoxidation. Grafting a fluorous group (1<i>H</i>,1<i>H</i>-perfluoro-octyl) suppresses activity of Ti-SiO<sub>2</sub>. Conversely, grafting either a nonpolar group (octyl) or a polar aprotic group (triethylene glycol monomethyl ether) enhances rates and shifts selectivity toward <i> ...[more]
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