Reference : Control of the porosity of anatase thin films prepared by EISA: Influence of thicknes...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/14546
Control of the porosity of anatase thin films prepared by EISA: Influence of thickness and heat treatment
English
Henrist, Catherine [Université de Liège - ULg > Département de chimie (sciences) > Chimie inorganique structurale >]
Dewalque, Jennifer mailto [Université de Liège - ULg > Département de chimie (sciences) > Chimie inorganique structurale >]
Mathis, François [Université de Liège - ULg > > Centre européen en archéométrie - Physique nucléaire, atomique et spectroscopie >]
Cloots, Rudi [Université de Liège - ULg > Département de chimie (sciences) > Chimie inorganique structurale - Doyen de la Faculté des Sciences >]
2009
Microporous and Mesoporous Materials
Elsevier Science
117
292-296
Yes (verified by ORBi)
International
1387-1811
[en] Thin film ; EISA ; Mesoporous ; Thickness ; TiO2
[en] Mesoporous anatase thin films were prepared by the evaporation-induced self-assembly process. This paper reports a study of the influence of several physical parameters on the long-range ordering of the mesopores. A preliminary study was done to set the best humidity conditions during dip-coating and ageing of the films. The withdrawal speed, already known to modify the thickness of the deposited film, was shown to exert a strong influence on the percentage of porosity. This was studied by step profilometry combined with Rutherford backscattered spectrometry (RBS). In parallel, small angle X-ray scattering (SAXS), X-ray diffraction (XRD), transmission electron microscopy (TEM) and RBS were used to tune the precise thermal treatment applied to the so-obtained films, in order to preserve the porous mesostructure
and promote the nanocrystallization of anatase TiO2.
http://hdl.handle.net/2268/14546
10.1016/j.micromeso.2008.07.001

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