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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Glycol-Modified Silanes in the Synthesis of Mesoscopically Organized Silica Monoliths with Hierarchical Porosity
Doris Brandhuber,Viktoria Torma,Christina Raab,Herwig Peterlik,and Alexander Kulak,Nicola Hüsing +5 more
TL;DR: In this article, three different glycol-modified silanes were obtained by transesterification reaction from tetraethylorthosilicate and corresponding alcohols, and they exhibited a well-ordered mesostructure with periodically arranged mesopores of about 6−7 nm in diameter.
Journal ArticleDOI
Facile and Generalized Preparation of Hierarchically Mesoporous−Macroporous Binary Metal Oxide Materials
TL;DR: A family of binary oxide compositions with a hierarchically bimodal mesoporous−macroporous structure has been prepared in this paper, where the macropores are in one-dimensional orientation parallel with each other and the mesopore framework is composed of interconnected wormhole-like mesopores.
Journal ArticleDOI
Beyond silica : Nonoxidic mesostructured materials
TL;DR: In this paper, a review of mesostructured and mesoporous materials with nonoxide frameworks is presented, with a focus on mesopore semiconductors with Chalcogenides.
Journal ArticleDOI
Metal phosphonate hybrid materials: from densely layered to hierarchically nanoporous structures
TL;DR: A critical review of the development and recent advances related to the field of metal phosphonates and the relevant nanocomposites is presented in this article, where the possibility to integrate the functionalities from both inorganic and organic moieties is discussed.
Journal ArticleDOI
An Efficient Route to Highly Organized, Tunable Macroporous−Mesoporous Alumina
Jean-Philippe Dacquin,Jérémy Dhainaut,Daniel Duprez,Sébastien Royer,Adam F. Lee,Karen Wilson +5 more
TL;DR: Organized macroporous-mesoporous alumina can be obtained via a dual-templating approach thanks to well-defined pore networks that coexist over a wide range of temperatures and macropore sizes.
References
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Ordered mesoporous molecular sieves synthesized by a liquid-crystal template mechanism
TL;DR: In this paper, the synthesis of mesoporous inorganic solids from calcination of aluminosilicate gels in the presence of surfactants is described, in which the silicate material forms inorganic walls between ordered surfactant micelles.
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Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores
Dongyuan Zhao,Jianglin Feng,Qisheng Huo,Nicholas A. Melosh,Glenn H. Fredrickson,Bradley F. Chmelka,Galen D. Stucky +6 more
TL;DR: Use of amphiphilic triblock copolymers to direct the organization of polymerizing silica species has resulted in the preparation of well-ordered hexagonal mesoporous silica structures (SBA-15) with uniform pore sizes up to approximately 300 angstroms.
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Synthesis of Macroporous Minerals with Highly Ordered Three-Dimensional Arrays of Spheroidal Voids
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.