Abstract
A simple method for preparing Al2O3 monoliths with hierarchical pore structure, using dextran gel beads as template, is presented. Removal of the template resulted in spherical macroporous cavities interconnected by macropores. Mesopores with diameter around 19nm were also present in the alumina framework. The materials have high pore volumes with significant fractions of macropores. This can facilitate the use of this type of monoliths within flow-through microreactor systems.
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