Abstract
In this paper, hierarchical meso/macroporous aluminas were obtained by using nonionic block copolymer EO 106 PO 70 EO 106( F 127)/agarose hydrogel as cotemplates. The hierarchical structure was confirmed by SEM, TEM and small-angle X-ray diffraction. The results showed that Al 2 O 3 exhibited a hierarchical structure with interconnected replicable macropores reproduced by agarose scaffold and ordered mesopores constructed by F 127 with uniform size. The template employed here is easy to prepare, degradable and reproducible, indicating the agarose xerogel as a promising candidate for the fabrication of porous metal oxides.
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