Tungsten Species on Beta Zeolite with Abundant Silanol Nests for Efficient Olefin Metathesis.

ABSTRACT: Tungstate-based catalysts for olefin metathesis generally suffer from insufficient reaction rates, which require relatively high temperatures for the satisfied activities. This issue is mainly due to the shortage of active WO _x species related to intrinsic low adsorption and poor activation of olefin molecules. Herein, we found that the silanol nests in dealuminated Beta zeolite (DeAl-Beta) were favorable for high dispersion of tungsten species, forming active WO _x species on the zeolite, which was helpful for the adsorption and activation of olefin molecules, thus facilitating the generation of metallocycle intermediates. As a result, the propene yield in the metathesis of ethene and 1-butene over WO _x /DeAl-Beta was 2.3 times higher t

SUBMITTER: Xiao Y 

PROVIDER: S-EPMC12400121 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature