Efficient immobilization of 12-tungstophosphoric acid catalyst at the surface of silica support grafted with alumina

12-Tungstophosphoric acid (HPW) was successfully immobilized on alumina-grafted silica-gel supports without significant structural damage. The thus prepared catalysts were employed in representative acid catalyzed reactions which involve polar substrates and products. It was found that HPW supported...

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Bibliographic Details
Published in:Catalysis communications 2004-06, Vol.5 (6), p.327-331
Main Authors: Madhusudhan Rao, P, Wolfson, A, Landau, M.V, Herskowitz, M
Format: Article
Language:English
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Summary:12-Tungstophosphoric acid (HPW) was successfully immobilized on alumina-grafted silica-gel supports without significant structural damage. The thus prepared catalysts were employed in representative acid catalyzed reactions which involve polar substrates and products. It was found that HPW supported on alumina-grafted silica-gel displayed higher activity compared with HPW/γ-Al2O3. Moreover, in reactions that did not require strong acid sites, activities comparable to the bulk HPW were obtained.
ISSN:1566-7367
1873-3905
DOI:10.1016/j.catcom.2004.04.001