Formation of highly ordered mesoporous titania films consisting of crystalline nanopillars with inverse mesospace by structural transformation
Formation of highly ordered mesoporous titania films consisting of crystalline nanopillars with inverse mesospace by structural transformation
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DOI：
10.1021/ja060453p
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发表时间：
2006-04-12
影响因子：
15
通讯作者：
Kuroda, K
中科院分区：
文献类型：
--
作者：
Wu, CW;Ohsuna, T;Kuroda, K
高度有序的介孔二氧化钛薄膜组成的晶体纳米柱与开放的空间，垂直，和连续的孔隙率已通过从一个3D的六方介观结构在热处理过程中的结构转变制备。的结构转变的机制被解释的二氧化钛框架的结晶和煅烧后的初始3D六方介观结构的膜的大收缩。这种结构转变为制备具有独特结构的介孔薄膜材料提供了新的途径。
Highly ordered mesoporous titania films consisting of crystalline nanopillars with open-spaced, perpendicular, and continuous porosity have been prepared via structural transformation from a 3D hexagonal mesostructure during the thermal treatment. The mechanism of the structural transformation is explained by the crystallization of the titania framework and the large contraction of the initial 3D hexagonal mesostructured film upon calcination. This structural transformation provides a new approach to generate mesoporous thin-film materials with unique structures.