Jump to main content
Jump to site search

Issue 6, 2012
Previous Article Next Article

A non-hydrolytic sol–gel route to highly active MoO3–SiO2–Al2O3 metathesis catalysts

Author affiliations

Abstract

MoO3-based materials are known to be appropriate catalysts for the heterogeneous metathesis of light olefins. Classical preparation methods involve the deposition of a Mo oxide phase on the surface of preformed support via impregnation, grafting or thermal spreading. An alternative sol–gel approach for the elaboration of Mo-based catalysts is presented in this article. Mesoporous ternary Si–Al–Mo mixed oxides are prepared in one step, via non-hydrolytic condensation of chloride precursors in non-aqueous media. After calcination, effective catalysts with very good textures and highly dispersed surface molybdenum species are obtained. The Si/Al ratio influences both the texture and the acidity of the materials, which significantly affects the propene self-metathesis activity. The activity also increases with the MoO3 content. The best catalysts with optimized composition significantly outperform the catalysts prepared by other methods.

Graphical abstract: A non-hydrolytic sol–gel route to highly active MoO3–SiO2–Al2O3 metathesis catalysts

Back to tab navigation

Supplementary files

Publication details

The article was received on 21 Nov 2011, accepted on 21 Dec 2011 and first published on 21 Dec 2011


Article type: Paper
DOI: 10.1039/C2CY00475E
Catal. Sci. Technol., 2012,2, 1157-1164

  •   Request permissions

    A non-hydrolytic sol–gel route to highly active MoO3–SiO2–Al2O3 metathesis catalysts

    D. P. Debecker, K. Bouchmella, M. Stoyanova, U. Rodemerck, E. M. Gaigneaux and P. Hubert Mutin, Catal. Sci. Technol., 2012, 2, 1157
    DOI: 10.1039/C2CY00475E

Search articles by author

Spotlight

Advertisements