Generalized Syntheses of Periodic Surfactant/Inorganic Composite Materials
Abstract
Here we demonstrate a generalized approach to describe the synthesis of transition and other metal oxide mesophases with cationic and anionic surfactants under variable conditions of pH. We show that tailoring the metal- ion speciation and charge density results in cooperative assembly by electrostatic complementarity at the inorganic/organic interface. Two general synthetic pathways are described: direct co-condensation with surfactants of opposite charge; and indirect co-condensation of similary charged species mediated by the intercalation of counterions at the surfactant/inorganic interface. The latter route has been used to produce, for the first time, organized periodic porous silica structures at room temperature in concentrated acid solution.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 25, 1994
- Accession Number
- ADA278001
Entities
People
- D. I. Margolese
- P. Feng
- P. Sieger
- Qingze Huo
- T. E. Gier
Organizations
- University of California, Santa Barbara