Freestanding TiO2 nanotube arrays with ultrahigh aspect ratio via electrochemical anodization
Freestanding TiO2 nanotube arrays with ultrahigh aspect ratio via electrochemical anodization
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DOI：
10.1021/cm7028917
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发表时间：
2008-02-26
影响因子：
8.6
通讯作者：
Lin, Zhiqun
中科院分区：
文献类型：
--
作者：
Wang, Jun;Lin, Zhiqun
通过在含氟乙二醇中电化学氧化高纯钛（Ti）箔，制备了具有超高长径比（约1500）的自组织独立型TiO2膜，然后将形成的TiO2膜从金属Ti衬底上简单安全地分离。所得膜由高度有序、垂直排列、单侧开放的TiO2纳米管阵列组成。在一定的阳极氧化条件下，纳米管阵列的孔径为90 nm，壁厚为15 nm，长度为135 μ m。
Self-organized, freestanding titania (TiO2) membrane with ultrahigh aspect ratio of the length/diameter (similar to 1500) was fabricated via electrochemical anodization of highly pure titanium (Ti) foil in fluorine-containing ethylene glycol, followed by a simple and safe detachment of the formed TiO2 membrane from the metallic Ti substrate. The resulting membrane consists of highly ordered, vertically aligned, one-side open TiO2 nanotube arrays. The pore diameter, wall thickness, and length of the nanotube arrays are 90 nm, 15 nm, and 135 mu m, respectively, at a certain anodization condition.