Hierarchically ordered oxides
Peidong Yang,Tao Deng,Dongyuan Zhao,Pingyun Feng,David J. Pine,Bradley F. Chmelka,George M. Whitesides,Galen D. Stucky +7 more
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TLDR
Porous silica, niobia, and titania with three-dimensional structures patterned over multiple length scales were prepared by combining micromolding, polystyrene sphere templating, and cooperative assembly of inorganic sol-gel species with amphiphilic triblock copolymers.Abstract:
Porous silica, niobia, and titania with three-dimensional structures patterned over multiple length scales were prepared by combining micromolding, polystyrene sphere templating, and cooperative assembly of inorganic sol-gel species with amphiphilic triblock copolymers. The resulting materials show hierarchical ordering over several discrete and tunable length scales ranging from 10 nanometers to several micrometers. The respective ordered structures can be independently modified by choosing different mold patterns, latex spheres, and block copolymers. The examples presented demonstrate the compositional and structural diversities that are possible with this simple approach.read more
Citations
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Preparation of Low-Density Macrocellular Tin Dioxide Foam with Variable Window Size
Qincui Gu,Keiji Nagai,Takayoshi Norimatsu,Shinsuke Fujioka,Hiroaki Nishimura,Katsunobu Nishihara,and Noriaki Miyanaga,Yasukazu Izawa +7 more
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Micropatterned Oriented Zeolite Monolayer Films by Direct In Situ Crystallization
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Highly ordered mesoporous CMI-n materials and hierarchically structured meso-macroporous compositions
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Directed aerosol writing of ordered silica nanostructures on arbitrary surfaces with self-assembling inks.
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References
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TL;DR: The examples presented demonstrate the compositional diversity possible with this technique and could have applications in areas ranging from quantum electronics to photocatalysis to battery materials.