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

Abstract

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.

Legal notice
  • Legal notice:

    Copyright (c) Pielaszek Research, all rights reserved.
    The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
    In every case, proper references including Author(s) name(s) and URL of this webpage: http://science24.com/paper/12724 must be provided.

 

Related papers
  1. Influence of microstructure of Bi12GeO20 doped with Ni and Co nanoparticles and Tb3Sc2Al3O12-TbScO3 system grown by directional solidification on Faraday effect
  2. Modified siliceous mesostructured cellular foams - effective catalysts for applications in liquid phase processes
  3. Structure studies on nanocrystalline MgO powders prepared by sol-gel method dried under different conditions

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
Google
 
Web science24.com
© 1998-2021 pielaszek research, all rights reserved Powered by the Conference Engine