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S. Meyer, J. Geserick, U. Schubert:
"Modified Porous Silica: A Novel Quasi Water-Free Route Towards Thin Films And Powders";
Poster: 14. Österreichische Chemietage, Johannes Kepler Universität, Linz; 2011-09-26 - 2011-09-29; in: "14. Österreichische Chemietage - Program", (2011), Paper ID PO-84, 1 pages.

Mesoporous silica modified with active sites has been in the focus of research in recent years due to its potential applicability in areas such as adsorption and chromatography as well as in catalysis and gas storage. Especially for adsorption high surface areas and controllable, uniform pore sizes are of great interest. Additionally adsorption materials should offer a preferably high number of different adsorption sites. The surfactanttemplated co-condensation of various precursors in sol-gel processes has emerged as efficient and low-energetic method to obtain such characteristics.
We herein report a novel quasi water-free route towards porous silica-based materials by co-condensation of tetraethoxysilane (TEOS) with organo-modified silanes and various metal chlorides in presence of the structure-directing agent Pluronic F127. Thin films and powders were generated by the evaporation induced self-assembly (EISA) process of ethanolic water-free sols in air atmosphere. The materials obtained by this method exhibited ordered and uniform nanopores with up to 33% of Lewis-acidic metal and accordingly organic sites (based on total metal content). The materials were investigated by FTIR, N2 sorption measurements, SAXS experiments and XPS measurements.