02054nas a2200229   4500008004100000020001800041022001400059245009100073210006900164260012300233300001200356490000800368520119500376100001901571700002201590700002101612700001301633700002801646700001501674700001701689856011801706       2005                        eng d  a0-444-51748-0  a0167-299100aImmobilized molybdovanadophosphoric acids on SBA-15 for selective oxidation of alkenes0 aImmobilized molybdovanadophosphoric acids on SBA15 for selective  a Niagara Falls, CanadabElsevier Science BV, Sara Burgerhartstraat 25, Po Box 211, 1000 AE Amsterdam, NetherlandscJUN  a769-7780 v1563 a<p>Vanadium substituted molybdophosphoric acids have been immobilized on amine functionalized SBA-15 and characterized by different techniques. Small angle X-ray scattering analysis and SEM technique provide evidence for the structural integrity of the samples. UV-Vis, NMR and IR data confirm the incorporation of molybdovanadophosphoric acids onto the amine functionalized SBA-15. The textural properties of these materials were studied by nitrogen sorption studies. Oxidation of cyclooctene and norbornene was carried out with oxidants in aqueous (aq. H2O2) and non-aqueous (TBHP extracted in dichloroethane) medium. The reactions were carried out with both the neat catalysts (homogeneous) and the immobilized catalysts (heterogenized) and the results were compared. The selectivity of the desired products was always &gt; 99% with the immobilized catalyst with both aq.H2O2 and TBHP. However, while the leaching was negligible in the non-aqueous medium, the aqueous medium leads to considerable leaching. The immobilized catalysts could be separated after the reaction and the reusability of the catalyst has also been demonstrated especially with oxidant in the nonaqueous medium.</p>1 aRaj, N., K. K.1 aDeshpande, S., S.1 aIngle, Rohit, H.1 aRaja, T.1 aManikandan, Palanichamy1 aSayari, A.1 aJaroniec, M.  uhttps://library.ncl.res.in/content/immobilized-molybdovanadophosphoric-acids-sba-15-selective-oxidation-alkenes-0