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 and performance of porous titania with a trimodal pore system as anode of lithium ion battery
Jin Yi,Dongsheng Lu,Xiaoping Li,Xiaoping Li,Shejun Hu,Weishan Li,Weishan Li,Jianfei Lei,Yuan Wang +8 more
TL;DR: In this paper, a porous titania has been prepared by using polystyrene spheres and tri-block copolymer as templates, and its structure, composition, and performance as anode of lithium ion battery are characterized by scanning electron microscopy (SEM), transmission electron microscope (TEM), X-ray diffraction, and galvanostatic charge/discharge test.
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Fabrication of hierarchical porous carbide-derived carbons by chlorination of mesoporous titanium carbides
TL;DR: In this paper, the influence of the ratio of titanium n -butoxide to sucrose (R ) on the porous structure and physical properties of the mesoporous titanium carbide and the resulting CDCs were investigated using X-ray diffraction, Raman spectroscopy, scanning and transmission electron microscopy, and N 2 adsorption.
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Inorganic self-assembly
Laura E. Depero,M. Lucia Curri +1 more
TL;DR: Self-assembly processes provide an effective and environmentally benign method for synthesizing novel ceramic and composite materials as discussed by the authors, which is the archetypal bioinspired synthesis route, has greatly expanded the methods of producing nanostructures.
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Enhancement of Enzyme Activity by Confinement in an Inverse Opal Structure
TL;DR: In this paper, the authors report on the immobilization of glucose oxidase (GOx) on a silica inverse opal matrix mounted in a configuration to allow reactant to flow through it.
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Preparation and photocatalytic activity of hierarchically 3D ordered macro/mesoporous titania inverse opal films
Wenfang Liu,Aijun Wang,Junjie Tang,Sheng-Li Chen,Guimei Yuan,Kun Zhao,Changxi Li,Xue-Cheng Liu +7 more
TL;DR: In this article, a hierarchical ordered macro/mesoporous titania inverse opal (TiO 2 -IO) films were prepared using a polyethyl glycol (PEG)-associated sol-gel method.
References
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Dongyuan Zhao,Jianglin Feng,Qisheng Huo,Nicholas A. Melosh,Glenn H. Fredrickson,Bradley F. Chmelka,Galen D. Stucky +6 more
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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.