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RESEARCH PRODUCT
Novel synthesis of spherical MCM-48
Kai SchumacherK.k. UngerMichael Grünsubject
ChemistryStereochemistrychemistry.chemical_elementGeneral ChemistryCondensed Matter PhysicsMolecular sieveChemical synthesisChromiumChemical engineeringMechanics of MaterialsAluminiumSpecific surface areaGeneral Materials ScienceThermal stabilityGalliumZeolitedescription
Abstract A novel synthesis route was developed for the cubic member of the M41S family, MCM-48, with a three-dimensional pore system allowing the formation of submicrometre- to micrometre-sized beads with a narrow pore-size distribution. The synthesis is based on the modified Stober method applying tetraethoxysilane, ethanol, water, ammonia and n -hexadecyltrimethylammonium bromide as template. The specific surface area, the specific pore volume and the average pore diameter were varied in the following ranges: 900–1600 m 2 g −1 , 0.5–0.9 cm 3 g −1 and 2–3 nm. Aluminium-, chromium-, gallium-, niobium- and vanadium-MCM-48 were also synthesized following this procedure.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-02-01 | Microporous and Mesoporous Materials |