AKIYAMA Yoshikatsu
   Department   Research Institutes and Facilities, Research Institutes and Facilities
   Position   Assistant Professor
Article types Original article
Language English
Peer review Peer reviewed
Title A Novel Layered Silicate with a Helical Morphology
Journal Formal name:Angewandte Chemie, International Edition
Abbreviation:Angew. Chem. In. Ed.
ISSN code:1433-7851
Domestic / ForeginForegin
Publisher Wiley
Volume, Issue, Page 38(10),pp.1420-1422
Author and coauthor AKIYAMA Yoshikatsu†, MIZUKAMI Fujio, KIYOZUMI Yoshimichi, MAEDA Kazuyuki, SAKAGUCHI Kengo
Authorship Lead author
Publication date 1999/05/11
Summary 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
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