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A Novel Layered Silicate with a Helical Morphology.
- Source :
-
Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 1999 May 17; Vol. 38 (10), pp. 1420-1422. - Publication Year :
- 1999
-
Abstract
- Helices composed of stacked layers are present in the novel silicate obtained from a silica sol and NaOH by hydrothermal synthesis in the presence of tetramethylammonium (TMA) hydroxide and 1,4-dioxane. The helical morphology is evident in scanning electron micrographs (see picture). The TMA and sodium ions of the silicate are readily replaced by protons, and on heating to 200°C a reversible phase transition occurs in which water molecules are lost from between the layers.<br /> (© 1999 WILEY-VCH Verlag GmbH, Weinheim, Fed. Rep. of Germany.)
Details
- Language :
- English
- ISSN :
- 1521-3773
- Volume :
- 38
- Issue :
- 10
- Database :
- MEDLINE
- Journal :
- Angewandte Chemie (International ed. in English)
- Publication Type :
- Academic Journal
- Accession number :
- 29711586
- Full Text :
- https://doi.org/10.1002/(SICI)1521-3773(19990517)38:10<1420::AID-ANIE1420>3.0.CO;2-6