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NMR Characterisation of the Organic/SiO2 Interfaces in Templated Porous Silica.

Published online by Cambridge University Press:  26 February 2011

Niki Baccile ,
Guillaume Laurent ,
Thierry Azaïs  and
Florence Babonneau
Niki Baccile
Affiliation:
[email protected], Université Pierre et Marie Curie-Paris6; CNRS, LCMCP, 4 place Jussieu, Paris, 75005, France
Guillaume Laurent
Affiliation:
[email protected], Université Pierre et Marie Curie-Paris6; CNRS, LCMCP, 4 place Jussieu, Paris, 75005, France
Thierry Azaïs
Affiliation:
[email protected], Université Pierre et Marie Curie-Paris6; CNRS, LCMCP, 4 place Jussieu, Paris, 75005, France
Florence Babonneau
Affiliation:
[email protected], Université Pierre et Marie Curie-Paris6; CNRS, LCMCP, 4 place Jussieu, Paris, 75005, France
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Abstract

This paper illustrates the use of a 1H-29Si-1H double CP sequence to investigate different organic/SiO2 interfaces in templated porous silica. The advantage of this sequence is to selectively edit, in a one-dimensional experiment, the protons that are in close proximity with the Si surface sites. In order to maximize the polarization transfer efficiency, some experiments have been recorded at lower temperature (238 K). Examples will concern surfactant/silica interactions in mesostructured silicas and the behavior of benzoic acid and 4-methoxychlorophenol, a common pesticide, encapsulated in mesoporous silica.

Keywords

nuclear magnetic resonance (NMR)sol-gelself-assembly
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 984: Symposium MM – Magnetic Resonance in Material Science , 2006 , 0984-MM14-06
Copyright
Copyright © Materials Research Society 2007

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References

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