Abstract
A technique was developed which utilizes pre-arranged surfactant-salt structures as precursors for microporous and mesoporous framework materials. Transition metal silicates with long-range structural order were syntherized by reacting surfactant salts of niobotungstate clusters with tetraethylorthosilicate to form a salt-gel. Infrared and solid state NMR double resonance spectra indicate that, in addition to linkages between silicate tetrahedra, niobium-oxygen-silicon linkages were formed in this reaction. Removal of the cationic surfactants by acid-extraction resulted in porous structures with surface areas up to 265 m2/g.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 69-79 |
| Number of pages | 11 |
| Journal | Materials Research Society Symposium - Proceedings |
| Volume | 371 |
| State | Published - 1995 |
| Event | Proceedings of the 1994 MRS Fall Meeting - Boston, MA, USA Duration: Nov 28 1994 → Nov 30 1994 |