Abstract
Layered silicates with three-dimensional microporosity within the layers have the potential to enable new applications in catalysis, adsorption and ion-exchange. Until now no such materials have been reported. However, here we present the synthesis and structure of AMH-3, a silicate with three-dimensionally microporous layers, obtained in high purity and crystallinity. AMH-3 is composed of silicate layers containing eight-membered rings in all three principal crystal directions, and spaced by strontium cations, sodium cations and water molecules. Because of its three-dimensional pore structure, acid and thermal stability, this layered material could find applications in polymer-silicate composites for membrane applications, for synthesis of combined microporous-mesoporous materials, and for the formation of new zeolites and microporous films. Its existence also opens new possibilities for the synthesis of other layered silicates with multidimensional microporous framework layers.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 53-58 |
| Number of pages | 6 |
| Journal | Nature Materials |
| Volume | 2 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2003 |
Bibliographical note
Funding Information:We acknowledge support from NASA-Microgravity (98-HEDS-05-218), NSF (CTS 0091406) and Engelhard Co. Correspondence and requests for materials should be addressed to M.T. Supplementary Information is available on the website for Nature Materials (http://www.nature.com/naturematerials)