Shear and salt effects on the structure of MCM-41 synthesis gels

Karen J. Edler, Philip A. Reynolds, Anthony S. Brown, Tania M. Slawecki, John W. White

Research output: Contribution to journalArticle

11 Scopus citations

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 languageEnglish (US)
Pages (from-to)1287-1291
Number of pages5
JournalJournal of the Chemical Society - Faraday Transactions
Volume94
Issue number9
DOIs
StatePublished - 1998

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry

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