Abstract
Orientational ordering under shear was observed for some precursor gels for the synthesis of the hexagonal mesoporous silica MCM-41 in the presence of high KBr concentrations. The presence of KBr disrupted the formation of the first-order MCM-41 diffraction peak dependent upon KBr concentration. Synthesis gels which formed good quality MCM-41, but with no added KBr salt, were not oriented by strong shearing. In addition MCM-41 formed without shear and salt was not disrupted by subsequent shearing.
Original language | English |
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Pages (from-to) | 1287-1291 |
Number of pages | 5 |
Journal | Journal of the Chemical Society - Faraday Transactions |
Volume | 94 |
Issue number | 9 |
DOIs | |
Publication status | Published - 1 Jan 1998 |
ASJC Scopus subject areas
- Physical and Theoretical Chemistry