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Solvent effect of titanium-silicate zeolite catalyzed epoxidation of α-olefins

Yin, D., He, Q., Lin, D., Zhang, B., Fu, R., Yang, C., Chen, D and Feng, X. 2026. Solvent effect of titanium-silicate zeolite catalyzed epoxidation of α-olefins. CIESC Journal 77 (3) , pp. 1253-1263. 10.11949/0438-1157.20250877

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Abstract

The epoxidation of olefins is a critical process in chemical production, and the HPPO method has garnered significant attention due to its high efficiency and environmental benefits. However, the mechanism of solvent effect in this system remains unclear, especially the solvent effect of titanium-silica zeolites with different topologies in the epoxidation of long-chain α-olefins is rarely reported. In this work, TS-1 (MFI topology) and Ti-beta (BEA topology) were used as catalysts to systematically investigate the effects of methanol and acetonitrile solvents on the epoxidation of α-olefins with varying carbon chain lengths (C4—C8). Through in situ spectroscopic characterization, kinetic experiments, and product degradation analysis, the synergistic mechanism between solvent and topology of zeolites in H2O2 activation and product stability was revealed. This work elucidates the influence of solvent effects with different molecular sieve topologies on H2O2 activation and olefin epoxidation, providing important theoretical support for the design of green and efficient catalytic systems, particularly with promising application potential in the synthesis of long-chain epoxides.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Schools > Chemistry
Additional Information: RRS policy applied
ISSN: 0438-1157
Date of First Compliant Deposit: 28 July 2026
Last Modified: 07 Aug 2026 22:45
URI: https://orca.cardiff.ac.uk/id/eprint/188506

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