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
Reads0
Chats0
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
More filters
Journal ArticleDOI
Coupling Nanobuilding Block and Breath Figures Approaches for the Designed Construction of Hierarchically Templated Porous Materials and Membranes
Yoshiaki Sakatani,Cédric Boissière,David Grosso,Lionel Nicole,Galo J. A. A. Soler-Illia,Clément Sanchez +5 more
TL;DR: In this article, the authors proposed a general, simple, and versatile strategy for the assembling of a large variety of structurally well-defined nanoparticles with very different chemical compositions into complex porous architectures.
Journal ArticleDOI
Hydrangea‐Like Meso‐/Macroporous ZnO‐CeO2 Binary Oxide Materials: Synthesis, Photocatalysis and CO Oxidation
TL;DR: In this article, a series of ZnO-CeO 2 binary oxides with a novel hydrangea-like morphology and meso-/macroporous hierarchical structure was synthesized by a simple one-pot hydrothermal process in the presence of triblock copolymer F127.
Journal ArticleDOI
Synthesis of tailored bimodal mesoporous materials with independent control of the dual pore size distribution
TL;DR: In this paper, a new synthesis method is presented to prepare multi-structured porous materials through a fully chemical route that allows control of the smaller and larger mesopore sizes independently.
Journal ArticleDOI
LBL assembled laminates with hierarchical organization from nano- to microscale: high-toughness nanomaterials and deformation imaging.
Paul Podsiadlo,Ellen M. Arruda,Eugene Kheng,Anthony M. Waas,Jungwoo Lee,Kevin Critchley,Ming Qin,Eric Chuang,Amit K. Kaushik,Hyoung Sug Kim,Ying Qi,Si Tae Noh,Nicholas A. Kotov +12 more
TL;DR: H Hierarchically organized composites combining structural features from 1 to 1 000 000 nm at six different levels of dimensionality with a high degree of structural control at every level can be obtained and makes possible mechanical deformation imaging with submicrometer resolution in real time and 3D capabilities.
Journal ArticleDOI
Advanced porous materials: New developments and emerging trends
TL;DR: In this article, the potential and versatility of innovative synthesis strategies that have been successfully developed to broaden the range of achievable compositions and functionalities are briefly discussed, including coordination of metal cations in the presence or not of surfactants, multiscale templating and nanocasting by hard templates.
References
More filters
Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
The Diatoms. Biology and Morphology of the Genera.
Journal ArticleDOI
Generalized syntheses of large-pore mesoporous metal oxides with semicrystalline frameworks
TL;DR: In this article, a simple and versatile procedure for the synthesis of thermally stable, ordered, large-pore (up to 140 A) mesoporous metal oxides was described.
Journal ArticleDOI
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.