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多孔阳极氧化铝模板与镍纳米线组装体系的研究

A Study on Assemble System of AAO Template and Electrodeposited Nickel Nanowires

【作者】 马迪

【导师】 李淑英;

【作者基本信息】 大连理工大学 , 化学工程, 2004, 硕士

【摘要】 采用电沉积方法在多孔阳极氧化铝模板上制备纳米结构材料。多孔阳极氧化铝膜具有孔径小、柱状孔相互平行等特点,还可通过改变氧化条件灵活调节膜厚和孔径,因此近几年来该方法已引起人们的广泛关注。 本文首先研究了在模板制备过程中电解液、氧化电压、氧化时间、温度等影响阳极氧化铝膜孔径及膜厚的因素,研究结果表明这些都是影响膜结构的主要因素。其次采用AAO样模法在多孔阳极氧化铝膜上电沉积镍金属微粒,在模板中,镍是以纳米线的形式存在。并通过扫描电子显微镜、原子力显微镜、EDX能谱、X射线衍射和电子探针对镍纳米线与AAO模板组装体系进行表征。此外通过阴极极化曲线和电流与时间关系曲线,考察了电沉积过程。最后,利用荧光光谱分析表明镍纳米线与AAO模板的组装体系具有特殊的光吸收性能。

【Abstract】 Nanostructure materials have been fabricated by electrodepositing into nanoporous anodic aluminum oxide templates .In recent several years, the method that has received considerable attention due to several unique structure properties such as controllable pore diameter extremely narrow size diameter and ideal cylindrical shape of pores, moreover it is possible to change film thickness and pore diameter depending on the varying oxide conditions.In this paper, we firstly study effective factors of pore diameter and film thickness during the process of the template preparation, such as electrolyte solution, the oxidize voltage, temperature and time The result shows that those are main influence factors of this membrane structure. Secondly, Arrays of nickel nanowires has been fabricated by electrodeposition of the metal into template, porous anodic aluminum oxide(AAO). The nickel was assembled with the form of nanowires in the template. In this experiment, Assemble system of template and electrodeposited nickel nanowires were characterized by Scanning Electron Microscopy (SEM) , atomic force microscopy (AFM),X-ray diffraction(XRD) and the electron probe microanalyzer. Additionally, The electrodeposition process was investigated with the technique of polarization curves. Finally, it is by ultraviolet radiation spectral analysis show that assemble system of nickel nanowires and AAO template have special characterization of light absorb.

【关键词】 电沉积纳米线AAO模板
【Key words】 ElectrodepositionNanowireAnodic Aluminum Oxide Template
  • 【分类号】TB383
  • 【被引频次】1
  • 【下载频次】448
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