Nucleation of MCM-41 Nanoparticles by Internal Reorganization of Disordered and Nematic-Like Silica-Surfactant Clusters

A controlled quenching process allows the nucleation period to be increased sufficiently, such that high‐resolution transmission electron microscopy can be used to reveal the structural and shape transformations during the onset and development of mesophase ordering of the hexagonally ordered silica...

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Published inAngewandte Chemie (International ed.) Vol. 41; no. 12; pp. 2151 - 2153
Main Authors Sadasivan, Sajanikumari, Fowler, Christabel E., Khushalani, Deepa, Mann, Stephen
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag GmbH 17.06.2002
WILEY‐VCH Verlag GmbH
Subjects
mesophases
mesoporous materials
Microscopy, Electron, Transmission
Nanoparticles - chemistry
nanostructures
silica
Silicon Dioxide - chemistry
Surface Properties
surfactants
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Summary:A controlled quenching process allows the nucleation period to be increased sufficiently, such that high‐resolution transmission electron microscopy can be used to reveal the structural and shape transformations during the onset and development of mesophase ordering of the hexagonally ordered silica–surfactant mesophase MCM‐41 (see scheme).
Bibliography:istex:4C8D454A24648E9634AE4C4134A6C975AE9CF2BA
ark:/67375/WNG-7F9K3V9M-4
ArticleID:ANIE2151
We thank the University of Bristol for the support of an ORS award to S.S., and Dr. S. A. Davis for help with electron microscopy.
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ISSN:1433-7851
1521-3773
DOI:10.1002/1521-3773(20020617)41:12<2151::AID-ANIE2151>3.0.CO;2-U