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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Journal ArticleDOI
Cordyceps militaris Exerts Anticancer Effect on Non-Small Cell Lung Cancer by Inhibiting Hedgehog Signaling via Suppression of TCTN3.
Eunbi Jo,Hyun-Jin Jang,Lei Shen,Kyeong Eun Yang,Minsu Jang,Yang Hoon Huh,Hwa-Seung Yoo,Junsoo Park,Ik Soon Jang,Soo Jung Park +9 more
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Self-assembled nanocrystalline epitaxial manganite films on SrTiO3∕Si heterostructures
D. Hunter,J.B. Dadson,Kai Zhang,B. Lasley,K. Lord,T. M. Williams,R. R. Rakhimov,Aswini K. Pradhan,Jun Zhang,David J. Sellmyer +9 more
TL;DR: In this article, the growth and magnetic characterizations of La0.7Ba0.3MnO3 and La 0.7Sr0.1MnNO3 films on Si (100) and Si (111) substrates by pulsed-laser deposition were reported.
Journal ArticleDOI
Synthesis of functional hybrid silica scaffolds with controllable hierarchical porosity by dynamic templating
Anal Kr. Ganai,Sushma Kumari,Kamendra P. Sharma,Chakadola Panda,Guruswamy Kumaraswamy,Sayam Sen Gupta +5 more
TL;DR: This technique combines the chemistry of mesoporous silica nanoparticles with the control afforded by dynamic templating of surfactant mesophases to create hierarchically porous scaffolds with independent control over nanoparticle mesoporosity and scaffold macroporosity.
Book ChapterDOI
Unconventional Pathways for Designing Silica-Supported Pt and Pd Catalysts With Hierarchical Porosity
Andrés Felipe Sierra-Salazar,Andrés Felipe Sierra-Salazar,André Ayral,Tony Chave,Vasile Hulea,Sergey I. Nikitenko,Salvatore Abate,Siglinda Perathoner,Patrick Lacroix-Desmazes +8 more
TL;DR: In this paper, a review of the techniques for texture tailoring and catalyst functionalization is presented, highlighting the high potential of hierarchical porous catalysts, and a few innovative techniques for the preparation of silica-supported Pt and Pd catalysts with hierarchical porosity are described.
Journal ArticleDOI
A combined top-down and bottom-up approach to fabricate silica films with bimodal porosity
TL;DR: In this article, a method to fabricate silica films with bimodal porosity based on the surfactant-directed self-assembly process followed by post-treatment with reactive ion etching (RIE) is presented.
References
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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
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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.