简介：ATi/Sicomplexzeolitehasbeenprepared.X-raydiffractionandinfraredspectrometrystudyhasshownthattwostructures,namelytheZSM-5andMCM-41,existinthesample.BETtestshaverevealedthatthecomplexzeolitecontainsregularmesoporesof2.6nm.UltravioletspectrometryanalysishasshownthattheTispeciesexistinthezeoliteskeletonintheformoftetra-coordinatevalence.TheTi/Sicomplexzeolite(TS-1/Ti-MCM-41)hasapparentlyimprovedcatalyticactivitywithrespecttothemacromolecularorganiccompoundoxidationascomparedtoindividualcomponentsofeitherTiorSicontainingzeolites(TS-1andTi-MCM-41).

简介：The^Siand^1Hhigh-resolutionliquid-phaseNMRhasbeenusedtoinvestigatethehydrolysisprocessofthetetraethylorthosilicate(TEOS).^1H-NMRspectroscopyshowsthatthehydrolysisofTEOSinTPAisfasterthaninTEA.TheimpactsofTPAandTEAontheTOEShydrolysisprocessanditshydrolyzedproductdistributionhavebeenobservedby^29Si-NMRrespectively.Theinfluencesofwaterandtheisopropylalcoholonhydrolysishavealsobeendiseussed.ThepresenceofTBOTmarksanevidentdifferentiationbetweenTPAandTEAforhydrolysisin^29Si-NMRspectra.