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
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Book ChapterDOI
Mesostructured Thin Film Oxides
Galen D. Stucky,Michael H. Bartl +1 more
TL;DR: In this paper, a brief introduction to mesostructured materials, focusing on mesostructure assembly and general synthesis and processing considerations as well as properties and characteristics of periodically ordered mesostured materials with an emphasis on thin film oxides is given.
Journal ArticleDOI
Synthesis of sodium iron silicate(NaFe(III)[SiO3]2) nanorods and electrochemical characterization
TL;DR: In this article, a NaFe(III)[SiO 3 ] 2 nanorod with the average diameter of 15nm and length of several hundreds nm was confirmed by X-ray power diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscope (TEM).
Journal ArticleDOI
Biomimetic synthesis of calcium carbonate bilayers interfaced by a diblock copolymer template
Jacm Jeroen Goos,CD Vo,A Archan Dey,van den Cj Chris Hoogen,Njhgm Nick Lousberg,Marco M. R. M. Hendrix,Nicola Tirelli,Najm Nico Sommerdijk +7 more
TL;DR: In this paper, the synthesis of a new class of hybrid materials with two differently oriented layers of calcite at adjacent sides of an organic template is demonstrated, where a Langmuir monolayer of the amphiphilic block copolymer poly(butyl acrylate)-b-poly(hydroxypropyl arrylate) directs the formation of a first CaCO3 phase through interaction with the hydrophilic poly(hydrophic poly(polyporpyl arkomer) blocks.
Journal ArticleDOI
Secrets revealed — Spatially selective wetting of plasma-patterned periodic mesoporous organosilica
Wendong Wang,Wendong Wang,Ian B. Burgess,Ian B. Burgess,Benjamin Hatton,Benjamin Hatton,Jack Alvarenga,Joanna Aizenberg +7 more
TL;DR: In this paper, a hydrophobic methane PMO thin film was covered by masks and exposed to oxygen plasma to make the unmasked area hydrophilic, and the wettability patterns could be revealed only when the films were immersed in water or exposed to moisture.
Patent
Layered porous transition metal oxide structure, method for preparing same, photoelectrode having same, and dye-sensitized solar cell having said photoelectrode
TL;DR: In this article, a layered porous transition metal oxide structure, comprising of a first transition metal oxide structure having first pores that are three-dimensional arranged; and a second transition metaloxide structure formed within said first pores, and having second pores which are smaller than the first pores and which are arranged three-dimensionally arranged.
References
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Journal ArticleDOI
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