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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Balkenende, Ruud
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Topics
Publications (7/7 displayed)
- 2023Circular applications through selection strategies (CATSS)
- 2023Feasibility of On-demand Additive Manufacturing of Spare Parts
- 2006Smart materials
- 2003Structural characterization of mesoporous organosilica films for ultralow-k dielectricscitations
- 2003A first insight in the mechanisms involved in the self-assembly of 2D-hexagonal templated SiO2 and TiO2 mesostructured films during dip-coatingcitations
- 2000Highly oriented 3D-hexagonal silica thin films produced with cetyltrimethylammonium bromidecitations
- 2000Effect of the initial stages of leaching on the surface of alkaline earth sodium silicate glassescitations
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article
A first insight in the mechanisms involved in the self-assembly of 2D-hexagonal templated SiO2 and TiO2 mesostructured films during dip-coating
Abstract
<p>Since mesoporous materials can be prepared by combining the sol-gel chemistry and the structuring effect of surfactants, they have attracted attention for application in various high technology fields. The present work deals with the analyses of the mechanisms involved in the formation of SiO<sub>2</sub> and TiO<sub>2</sub> highly organised 2D-hexagonal meso-structured films using Brij 58 as surfactant. The preparation of such films by dip-coating involves rapid evaporation which makes the different steps difficult to control. Simultaneous in-situ SAXS (synchrotron) and interferometry analyses have been performed to get a first understanding of the self-assembly process. SiO<sub>2</sub> and TiO<sub>2</sub> materials have a different chemical reactivity (kinetics and coordination aspects). However, we show that the mechanisms involved during dip-coating are quite similar : The self-assembly leading to the organised phase takes place at a final stage of the drying process, involves the formation of a disorganised intermediate phase and depends also on the presence of micellar interfaces in addition to film/air and film/substrate interfaces.</p>