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兩段式陽極氧化法制備大管徑TiO2納米管
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國家自然科學基金(50871093); 教育部全國博士學位論文作者專項資金資助項目(200554)


Preparation of Large-Diameter Titania Nanotubes by Two-Step Anodic Oxidation
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    摘要:

    應用電化學陽極氧化方法,在自選的電解液中,通過調(diào)節(jié)氧化電壓和氧化次數(shù)制備不同管徑的TiO2納米管。其管徑可分別控制在50, 100和200 nm左右。其中50和100 nm范圍的納米管是一次氧化所制得。通過再次氧化突破了一次氧化對尺寸的限制,所制得納米管的最大管徑達到280 nm。實驗證實,在一定的電壓范圍內(nèi),通過調(diào)節(jié)陽極氧化的電壓可以控制TiO2納米管的管徑大小。但是,在本實驗的電解液條件下,在一次氧化過程,通過調(diào)節(jié)電壓制備出的納米管最大管徑只能達到120 nm。采用兩次氧化能將TiO2納米管的管徑擴大到更大的尺寸,可以擴展TiO2納米管的應用范圍。

    Abstract:

    Diameters of titania nanotubes could be controlled through changing the oxidation voltages and anodization time. By anodization of one time, the nanotubes with the diameters of 50 nm and 100 nm were fabricated, even of 120 nm for the biggest diameter. By the two-step anodization, however, the diameter of the nanotubes was up to 280 nm, above the limit by one time anodization. It is demonstrated that the increase of voltage in a limited range could increase the diameter of the titana nanotubes, and the diameter of the nanotubes can hardly be expanded beyond 120 nm. In the two-step anodization, the diameter of the nanotubes could be enlarged to a larger range, in which the application of the nanotubes could also be widened.

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劉達理,馮 波,魯 雄,陳建敏.兩段式陽極氧化法制備大管徑TiO2納米管[J].稀有金屬材料與工程,2010,39(2):325~328.[Liu Dali, Feng Bo, Lu Xiong, Chen Jianmin. Preparation of Large-Diameter Titania Nanotubes by Two-Step Anodic Oxidation[J]. Rare Metal Materials and Engineering,2010,39(2):325~328.]
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  • 收稿日期:2009-03-06
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