ABSTRACT
I.Introduction665
II.MesoporousSilica666
III.Self-Assembly667
IV.DirectInorganicFunctionalizationofMCM-41669 A.Cocondensation669 B.Surfactantdisplacement671 c.Postcalcinationmetalization672
v.DirectOrganicfunctionalizationofMCM-41674 A.Cocondensation674 B.Surfactantextraction676
VI.MonolayerChemistryofMCM-41678 A.Stateofthecalcinedsurface678 B.Directsilanation679 c.Hydrationofthecalcinedinterface681 D.Drivingcondensationequilibria681 E.Fullydensemonolayercoverage682
VII.Conclusions683
References685
Silicahasalonghistoryofservicetohumankindinthemakingofglass,abrasives, reinforcedcompositematerials,sorbents,andcatalysts.Intheseapplications,the
interfacial chemistry of the silica surface, as well as the surface area provided by the particle morphology, are critical to the success or failure of the final product. Over the years, much effort has been expended in exploring the interfacial chemistry of silica, as well as manipulating particle size and morphology of the silica in an effort to enhance the surface-area-to-mass ratio. Recent advances in the areas of nanostructured ceramics and molecular self-assembly have provided the key components to what is , perhaps, the ultimate refinement in catalyst support and sorbent design. This chapter will summarize the synthetic methods used to prepare interfacially functionalized mesoporous ceramics.
