Publications
Porous Silica-based Mixed Oxides with Basic Organic Sites Prepared by Sequential Non-Hydrolytic and Hydrolytic Sol-gel Processes
- Author(s)
- Jasmin Geserick, Sarah Meyer, Michael Puchberger, Silvia Pabisch, Herwig Peterlik, Ole Bethge, Emmerich Bertagnolli, Ulrich S. Schubert
- Abstract
Porous, organically modified silica-based mixed oxides were prepared in a two-step process. First, a mixture of tetraethoxysilane, bis(triethoxysilyl)dipropylamine and, optionally, 1,4-bis(triethoxysilyl)benzene was treated with metal chlorides (ZrCl4, TiCl4, or AlCl3), and no water or water-based catalyst was added to the sols. After film formation, the materials were exposed to ambient humidity to achieve hydrolytic condensation of residual groups. Materials with wormhole-like ordered porosity and uniform mesopores were obtained with metal proportions up to about 20?%. According to XPS measurements, the metals are homogenously distributed in the silica matrix.
- Organisation(s)
- Dynamics of Condensed Systems
- External organisation(s)
- Universität Ulm, Technische Universität Wien, Leopold-Franzens-Universität Innsbruck, Friedrich-Schiller-Universität Jena
- Journal
- European Journal of Inorganic Chemistry
- Volume
- 32
- Pages
- 5207-5215
- No. of pages
- 9
- ISSN
- 1434-1948
- DOI
- https://doi.org/10.1002/ejic.201200088
- Publication date
- 2012
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103009 Solid state physics, 103015 Condensed matter, 103018 Materials physics
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/d4f57d06-7904-4297-956b-08f4e5dae756