Ordered mesoporous hybrid thin films with double organic functionality and mixed oxide framework
- 12 July 2005
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 15 (35-36), 3903-3912
- https://doi.org/10.1039/b506484h
Abstract
Highly ordered mixed framework mesoporous cubic (Im3m) or 2D hexagonal (p6m) thin films of (M1−x(Si–R)x)O2−x/2 bearing organic groups (M = Ti or Zr, R = propylamine, mercaptopropyl or phenyl, x ≤ 0.2) are obtained by one-pot dip-coating. A second organic function (R′ = hexadecyl, phenyl, sulfonate…) can be added by post-grafting with a molecule presenting a chelating group capable of anchoring to the M sites (phosphate, phosphonate, polyhydroxyphenol, carboxylate…) and a second organic group. This two-step procedure leads to bifunctional accessible mesopores. The role of post-synthesis stabilisation treatments, the alternative processes for template extraction, and the pore accessibility towards a second function are presented and discussed.Keywords
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