TY - CHAP AB - Nanoporous semiconducting metal oxide materials (In2O3, WO3) with uniform pore systems, large specific surface areas (80 m2 g−1), and pore-wall crystallinity were prepared by structure replication, using KIT-6 silica as a template. The products show improved properties as gas sensors (for methane or butanone) as compared to non-porous samples. In addition, porous WO3 samples with comparable porosity (prepared by conventional ‘soft templating’, using pluronic P123), which are amorphous on the atomic length scale show poorer gas sensitivity, indicating that crystallinity is a crucial factor in the sensing process. AU - Waitz, Thomas AU - Wagner, Thorsten AU - Kohl, Claus-Dieter AU - Tiemann, Michael ID - 25983 SN - 0167-2991 T2 - Zeolites and related materials: Trends, targets and challenges, Proceedings of the 4th International FEZA Conference TI - New mesoporous metal oxides as gas sensors ER - TY - CHAP AB - In-situ X-ray diffraction study on the formation of a periodic mesoporous organosilica material... AU - Tiemann, Michael AU - Teixeira, Cilâine V. AU - Cornelius, Maximilian AU - Morell, Jürgen AU - Amenitsch, Heinz AU - Lindén, Mika AU - Fröba, Michael ID - 25990 SN - 0167-2991 T2 - Recent Progress in Mesostructured Materials - Proceedings of the 5th International Mesostructured Materials Symposium (IMMS2006), Shanghai, P.R. China, August 5-7, 2006 TI - In-situ X-ray diffraction study on the formation of a periodic mesoporous organosilica material ER - TY - CHAP AB - Gas-sensing properties of ordered mesoporous Co3O4 synthesized by replication of SBA-15 silica... AU - Wagner, Thorsten AU - Roggenbuck, Jan AU - Kohl, Claus-Dieter AU - Fröba, Michael AU - Tiemann, Michael ID - 25989 SN - 0167-2991 T2 - Recent Progress in Mesostructured Materials - Proceedings of the 5th International Mesostructured Materials Symposium (IMMS2006), Shanghai, P.R. China, August 5-7, 2006 TI - Gas-sensing properties of ordered mesoporous Co3O4 synthesized by replication of SBA-15 silica ER - TY - CHAP AB - Mesostructured aluminophosphate / surfactant composite materials were prepared from aqueous and alcoholic systems. Syntheses in ethanol or methanol, respectively, lead to mixtures of two nanostructured phases. One of these consists of hexagonally arranged rod-like assemblies of the surfactant molecules with the head groups located in the centres, encapsulating the inorganic aluminophosphate; the other is lamellar. The syntheses were monitored by in-situ temperature- and time-resolved small angle X-ray scattering (SAXS). AU - Tiemann, Michael AU - Fröba, M. AU - Rapp, G. AU - Funari, S.S. ID - 26006 SN - 0167-2991 T2 - Nanoporous Materials II, Proceedings of the 2nd Conference on Access in Nanoporous Materials TI - In-situ small angle x-ray scattering (SAXS) studies on the formation of mesostructured aluminophosphate / surfactant composite materials ER -