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首页> 外文会议>Nanotechnology-general >Formation of Self Ordered TiO_2 Nanotubes by Electrochemical Anodization of Titanium in 2-Propanol / NH_4F
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Formation of Self Ordered TiO_2 Nanotubes by Electrochemical Anodization of Titanium in 2-Propanol / NH_4F

机译：在2-丙醇/ NH_4F中钛的电化学阳极氧化形成自组装TiO_2纳米管。

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摘要

In the present work we report that TiO_2 nanotubes (TiNT) can be formed by electrochemical anodization of titanium in an 2-propanol/water + 0.14 M NH_4F. The effects of water contents, time of anodization and the potential on the growth behavior of the TiNT were studied. The optimum solvent composition of water / 2-propanol was found 16 vol% water. At this % the reaction between solvated electrons and hydrogen ions, which was considered as a possible rate-determining step, is kinetically controlled. The titania nanotubes obtained under the optimum conditions have heights up to 1800 nm and inner diameters around 90 nm. Increasing the potential beyond 20 V did not show better nanotubes. This was attributed to the fast reactions under the high field led to disordering equilibrium of the controlling reactions.
机译：在目前的工作中，我们报告说，可以通过在2-丙醇/水+ 0.14 M NH_4F中对钛进行电化学阳极氧化来形成TiO_2纳米管（TiNT）。研究了水含量，阳极氧化时间和电势对TiNT生长行为的影响。发现水/ 2-丙醇的最佳溶剂组成为16体积％的水。在此％，溶剂化的电子与氢离子之间的反应被动力学控制，这被认为是可能的速率确定步骤。在最佳条件下获得的二氧化钛纳米管具有高达1800 nm的高度和90 nm左右的内径。将电势增加到20 V以上并没有显示出更好的纳米管。这归因于高电场下的快速反应导致控制反应的无序平衡。

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  • 来源
    《Nanotechnology-general》|2008年|35-47|共13页
  • 会议地点 Honolulu HI(US);Honolulu HI(US);Honolulu HI(US)
  • 作者

    F. M. Bayoumi Hassan; Hiroshi Nanjo; Hiroyuki Tetsuka; Mitsuhiro Kanakubo; Takafumi Aizawa; Masateru Nishioka; Takeo Ebina;

  • 作者单位

    National Institute of Advanced Industrial Science and Technology (AIST), RC-CCP, 4-2-1 Nigatake, Miyagino-ku, Sendai 983-8551, Japan;

    National Institute of Advanced Industrial Science and Technology (AIST), RC-CCP, 4-2-1 Nigatake, Miyagino-ku, Sendai 983-8551, Japan;

    National Institute of Advanced Industrial Science and Technology (AIST), RC-CCP, 4-2-1 Nigatake, Miyagino-ku, Sendai 983-8551, Japan;

    National Institute of Advanced Industrial Science and Technology (AIST), RC-CCP, 4-2-1 Nigatake, Miyagino-ku, Sendai 983-8551, Japan;

    National Institute of Advanced Industrial Science and Technology (AIST), RC-CCP, 4-2-1 Nigatake, Miyagino-ku, Sendai 983-8551, Japan;

    National Institute of Advanced Industrial Science and Technology (AIST), RC-CCP, 4-2-1 Nigatake, Miyagino-ku, Sendai 983-8551, Japan;

    Na;

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  • 正文语种 eng
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