Hierarchically Ordered Oxides | Zendy

Peidong Yang | Zendy; Tao Deng | Zendy; Dongyuan Zhao | Zendy; Pingyun Feng | Zendy; David J. Pine | Zendy; Bradley F. Chmelka | Zendy; George M. Whitesides | Zendy; Galen D. Stucky | Zendy

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Hierarchically Ordered Oxides

Author(s) -

Peidong Yang,

Tao Deng,

Dongyuan Zhao,

Pingyun Feng,

David J. Pine,

Bradley F. Chmelka,

George M. Whitesides,

Galen D. Stucky

Publication year - 1998

Publication title -

science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 12.556

H-Index - 1186

eISSN - 1095-9203

pISSN - 0036-8075

DOI - 10.1126/science.282.5397.2244

Subject(s) - copolymer , nanometre , polystyrene , materials science , porosity , template , spheres , amphiphile , nanotechnology , nanostructure , chemical engineering , composite material , polymer , physics , astronomy , engineering

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.

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