Hierarchically structured porous materials are of great interest for many industrial applications, especially as catalysts or sorption materials. Within this thesis, the preparation of macroscopic porous silica spheres via an emulsion based sol-gel approach was investigated. The materials are composed of a macroporous shell and a core made of interconnected silica nanoparticles. The mechanically stable spheres exhibit high specific surface areas up to 900 m
2/g and tunable mesopore diameters from 4 to 22 nm. The synthesis method was applied to prepare platinum nano-catalysts stabilized on organo-functionalized silica spheres.
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Hierarchically structured porous materials are of great interest for many industrial applications, especially as catalysts or sorption materials. Within this thesis, the preparation of macroscopic porous silica spheres via an emulsion based sol-gel approach was investigated. The materials are composed of a macroporous shell and a core made of interconnected silica nanoparticles. The mechanically stable spheres exhibit high specific surface areas up to 900 m
2/g and tunable mesopore diameters from...
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