Reference : Freeze-dried resorcinol-formaldehyde gels
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
Engineering, computing & technology : Chemical engineering
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/20377
Freeze-dried resorcinol-formaldehyde gels
English
Blacher, Silvia mailto [Université de Liège - ULg > Département de Chimie appliquée > Génie chimique - Chimie physique appliquée > >]
Pirard, René [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Chimie physique appliquée > >]
Pirard, Jean-Paul mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Chimie physique appliquée > >]
Sahouli, Bendida [Université de Liège - ULG > > > > > >]
Brouers, François mailto [Université de Liège - ULg > Services généraux (Faculté des sciences appliquées) > Relations académiques et scientifiques (Sciences appliquées) >]
Mathieu, Bernard [Université de Liège - ULG > Département de Chimie appliquée > Génie chimique - Chimie physique appliquée > >]
1997
Journal of Non-Crystalline Solids
Elsevier Science
212
2-3
250-261
Yes (verified by ORBi)
International
0022-3093
Amsterdam
The Netherlands
[en] The texture of resorcinol-formaldehyde gels, previously synthesized by Pekala et al. [1-6], but dried by freeze-drying was studied. The freeze-dried gels present a complex porous structure from nanometer to micrometer length-scale. Taking a standard freezing rate, we study in detail the influence of the molar ratio resorcinol/catalyst on the texture, This molar ratio is one of the parameters under consideration which can lead to a tailoring of the dried gel texture in order to develop adsorbents or catalyst supports of controlled porosity. Characterization methods include nitrogen adsorption-desorption (including the classical and the fractal interpretations), mercury porosimetry, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS).
http://hdl.handle.net/2268/20377

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
Mathieu 1997-JoNCS.pdfPublisher postprint1.17 MBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.