Redirect the assembly of hexagonal MCM-41 into cubic MCM-48 from sodium silicate without the use of an organic structure modifier.
In contrast to earlier methods requiring the presence of organic modifiers for the preparation of cubic MCM-48 mesostructures from low cost sodium silicate, we show that this three dimensional framework structure can be readily assembled in the absence of co-surfactants simply by using the overall SiO2/OH- ratio as means of controlling the surfactant packing parameter.
Liu
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Y
Department of Chemistry, Michigan State University, East Lansing, MI 48824-1322, USA.
Karkamkar
A
A
Pinnavaia
T J
TJ