Hard Templating of Nanocrystalline Titanium Dioxide with Chiral Nematic Ordering

被引：138
作者：
Shopsowitz, Kevin E. [1 ]
Stahl, Alexander [1 ]
Hamad, Wadood Y. [2 ]
MacLachlan, Mark J. [1 ]
机构：
[1] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada
[2] FPInnovations, Vancouver, BC V6S 2L9, Canada
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2012年 / 51卷 / 28期
基金：
加拿大自然科学与工程研究理事会;
关键词：
chirality; hard templating; mesoporous materials; nanocrystalline cellulose; titanium dioxide; MESOPOROUS SILICA; PHOTONIC CRYSTALS; MOLECULAR-SIEVES; TIO2; ANATASE; CARBON; ROUTE; FILMS; OXIDES; SCALE; GERMANIUM;
D O I：
10.1002/anie.201201113
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Anatase TiO 2 nanocrystals have been organized into high-surface-area (150-230 m 2 g -1) mesoporous films with long-range chiral nematic ordering. The chiral structure of the anatase films causes them to selectively reflect circularly polarized light and appear iridescent. These materials show replication of structural features found in the silica template on nanometer to millimeter length scales. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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收藏
页码：6886 / 6890
页数：5
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