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Hybrid Nanostructured Materials Obtained from Ti-Oxo Nanobuilding Blocks

Published online by Cambridge University Press:  01 February 2011

Clément Sanchez
Affiliation:
Laboratoire de Chimie de la Matière Condensée, Université Pierre et Marie Curie, 4 Place Jussieu, Tour 54 5e, 75252, Paris Cedex 05, France.
Galo J. De A. A. Soler-Illia
Affiliation:
Laboratoire de Chimie de la Matière Condensée, Université Pierre et Marie Curie, 4 Place Jussieu, Tour 54 5e, 75252, Paris Cedex 05, France.
Laurence Rozes
Affiliation:
Laboratoire de Chimie de la Matière Condensée, Université Pierre et Marie Curie, 4 Place Jussieu, Tour 54 5e, 75252, Paris Cedex 05, France.
Anne-M. Caminade
Affiliation:
Laboratoire de Chimie de Coordination, CNRS, 205 Route de Narbonne, 31077, Toulouse Cedex 05, France.
Cédric-O. Turrin
Affiliation:
Laboratoire de Chimie de Coordination, CNRS, 205 Route de Narbonne, 31077, Toulouse Cedex 05, France.
Jean-P. Majoral
Affiliation:
Laboratoire de Chimie de Coordination, CNRS, 205 Route de Narbonne, 31077, Toulouse Cedex 05, France.
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Abstract

Mesostructured titanium-oxo/polymer hybrids were obtained by using Ti16O16(OEt)32 (TS) clusters or by aging solutions of Ti alkoxides as precursors. Dendrimers or PEO-based surfactants were used as templating agents. Solids were characterised by XRD, TEM, FTIR and multinuclear liquid and solid (MAS) NMR spectroscopy. Two synthetic approaches are described. In the alkoxide-based systems, the control of the high reactivities of the Ti (IV) metal centers, is essential to obtain ordered mesophases. The assembly of nanobuilding blocks (ANBB) permits to circumvent this high reactivity by using pre-formed Ti-oxo entities. The use of versatile functionalised dendrimers permits to control the reactivity at the surface of the cluster, giving birth to novel ordered architectures.

Type
Research Article
Copyright
Copyright © Materials Research Society 2000

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References

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