期刊
CHEMISTRY OF MATERIALS
卷 22, 期 15, 页码 4379-4385出版社
AMER CHEMICAL SOC
DOI: 10.1021/cm100764e
关键词
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资金
- The University of Melbourne
- Albert Shimmins Memorial Fund
- Australian Research Council [DP0877428, FT0990583]
- ANPCyT [PICT 34518]
- ABTLus - Brazil [5353]
- Conicet
- Australian Research Council [DP0877428] Funding Source: Australian Research Council
Hierarchically porous oxides are used in a variety of applications within the energy sector (e.g., fuel cells, batteries), biology (e.g., scaffolds, biocatalysis), separations, and catalysis. This article describes a reproducible one-step method for the preparation of metal oxides with controllable hierarchical pore architectures. The preparation is demonstrated for a wide range of materials, specifically silica, titania, zirconia, aluminum titanium oxide, titanium zirconium oxide, and yttrium zirconium oxide monoliths. The samples were prepared by exploiting the polymerization and phase separation of furfuryl alcohol to produce a colloidal dispersion of poly(furfuryl alcohol) particles. The gelation in the sob-gel process occurred after the in situ formation of the template. The removal of the polymer template led to the formation of macropores, whereas inclusion of an amphiphilic block copolymer (Pluronic F127) assisted mesopore formation, either by templating or by stabilizing the inorganic building blocks. The macropore and mesopore morphology could be altered by varying the synthesis conditions. This control over the pore structure was demonstrated in the silica, titania, and titanium zirconium oxide materials.
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