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Materials with multimodal hierarchical porosity

Wojciech Pudło 1Veronika Pashkova 2Wojciech Gawlik 1Miroslaw A. Derewinski 2Andrzej B. Jarzębski 1,3

1. Silesian University of Technology, Department of Chemical Engineering, M. Strzody 7, Gliwice 44-100, Poland
2. Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences (ICSC), Niezapominajek 8, Kraków 30239, Poland
3. Institute of Chemical Engineering Polish Academy of Sciences, Bałtycka 5, Gliwice 44-100, Poland


Silica and silica-alumina thin films and monoliths, both possessing hierarchical multimodal pore structure, were synthesized by inducing a phase separation parallel to the sol-gel transition. It was found that it is also possible to obtain zeolitic layers (MFI type) deposited on parent silica or silica-alumina solid monoliths and such composite preparations retain the initial meso/macroporosity as well as texture of the parent material. The morphology of the obtained materials was observed by SEM (monoliths) and AFM (films) whilst the porosity was determined using adsorption/desorption isotherms. Further development and chemical modification of the pore surface should promote the application of well-defined hierarchically porous material into sensor technology.


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Presentation: Poster at SMCBS'2007 International Workshop, by Wojciech Pudło
See On-line Journal of SMCBS'2007 International Workshop

Submitted: 2007-09-14 15:28
Revised:   2009-06-07 00:44