Breath Figures of Nanoscale Bricks: A Universal Method for Creating Hierarchic Porous Materials from Inorganic Nanoparticles Stabilized with Mussel-Inspired Copolymers
Breath Figures of Nanoscale Bricks: A Universal Method for Creating Hierarchic Porous Materials from Inorganic Nanoparticles Stabilized with Mussel-Inspired Copolymers
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DOI：
10.1002/marc.201400363
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发表时间：
2014-10-01
影响因子：
4.6
通讯作者：
Yabu, Hiroshi
中科院分区：
文献类型：
--
作者：
Saito, Yuta;Shimomura, Masatsugu;Yabu, Hiroshi
建设环境可持续的社会需要高性能的催化剂和光伏。由于催化和光伏反应发生在反应物和表面之间的界面上，界面的化学、物理和结构性质一直是许多研究的重点。为了进一步提高这些材料的性能，人们制备了具有层次化多孔结构的无机多孔材料。呼吸图形技术允许通过使用水滴作为模板来制备多孔膜。本研究为层状多孔无机材料的制备提供了一种有价值的方法。将表面包覆的无机纳米粒子与含儿茶酚基团的两亲性共聚物进行烧结，制备出层次化的多孔材料。以水滴为模板制备微米级微孔，并在纳米颗粒之间形成纳米级的孔。该制备方法允许从各种形状和材料的无机纳米颗粒制备分层多孔膜。
High-performance catalysts and photovoltaics are required for building an environmentally sustainable society. Because catalytic and photovoltaic reactions occur at the interfaces between reactants and surfaces, the chemical, physical, and structural properties of interfaces have been the focus of much research. To improve the performance of these materials further, inorganic porous materials with hierarchic porous architectures have been fabricated. The breath figure technique allows preparing porous films by using water droplets as templates. In this study, a valuable preparation method for hierarchic porous inorganic materials is shown. Hierarchic porous materials are prepared from surface-coated inorganic nanoparticles with amphiphilic copolymers having catechol moieties followed by sintering. Micron-scale pores are prepared by using water droplets as templates, and nanoscale pores are formed between the nanoparticles. The fabrication method allows the preparation of hierarchic porous films from inorganic nanoparticles of various shapes and materials.