研究论文

Al2O3纳米线的电化学法制备及形成机理分析

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  • (太原理工大学 洁净化工研究所, 太原 030024)

收稿日期: 2009-12-17

  修回日期: 2010-03-09

  网络出版日期: 2010-07-19

基金资助

国家自然科学基金(20676088); 国家高技术研究发展计划(863计划)项目(2006AA05Z139)

Preparation and Formation Mechanism of Al2O3 Nanowires by Electrochemical Oxidation Process

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  • (Chemical Engineering Department, Taiyuan University of Technology, Taiyuan 030024, China)

Received date: 2009-12-17

  Revised date: 2010-03-09

  Online published: 2010-07-19

摘要

通过对纯铝板电化学阳极氧化及腐蚀液处理, 在一定的条件下制备出了排布有序的Al2O3纳米线, 采用SEM、EDS、IR手段对纳米线微观形貌和组成进行了表征. 实验结果表明: 多孔Al2O3薄膜经腐蚀后形成纳米线,在铝基板上呈六角形排布, 组成为纯Al2O3, 直径随电氧化温度、槽电压的升高和腐蚀处理时间的延长减小, 直径范围为16~60nm, 长径比较大. 在实验的基础上, 提出了有序排布Al2O3纳米线的形成机理.

本文引用格式

池永庆, 陈 旭, 刘世斌, 张忠林, 段东红, 李一兵, 郝晓刚 . Al2O3纳米线的电化学法制备及形成机理分析[J]. 无机材料学报, 2010 , 25(8) : 851 -856 . DOI: 10.3724/SP.J.1077.2010.00851

Abstract

Al2O3 nanowires were prepared with the method of electrochemical oxidation followed by acid corrosion. The morphology and structure of Al2O3 nanowires were characterized by SEM, EDS and IR. The experimental results show that Al2O3 nanowires with hexagonal arrangement and large aspect ratio are formed from Al2O3 porous film by electro-oxidation of aluminum substrate. The diameter of the pure Al2O3 nanowires is from 16nm to 60nm, and decreases with the rising of electrolyte temperature, cell voltage and the prolonging of corrosion time. On the basis of characterization of nanowires on Al2O3 porous film, a possible formation mechanism was proposed.

参考文献

[1]Ajayan P M, Iijima S. Capillary-induced filling of carbon nanotubes.Nature,1993, 361(6410):333-334
[2]Chen Y Q, Cui X F, Zhang K, et al. Bulk-quantity synthesis and self-catalytic VLS growth of SnO2 nanowires by lower-temperature evaporation.Chemical Physics Letters,2003, 369(1/2):16-20
[3]Pan Z W, Dai Z R, Wang Z L. Nanobelts of semiconducting oxides.Science,2001, 291(5510):1947-1949
[4]Li J Y, Chen X L, Qiao Z Y, et al. Formation of GaN nanorods by a sublimation method.Journal of Crystal Growth,2000,213(3/4):408-410
[5]Lijima S. Helical microtubules of graphitic carbon.Nature,1991, 354(7):56-58
[6]Touratier M, Beakou A, Chatellier J Y. On the mechanical behavior of aluminum alloys reinforced by long or short alumina fibers or SiC whiskers.Composites Science and Technology,1992, 44(4):369-383
[7]Shek C H, Lai J K, Gu T S, et al. Transformation evolution and infrared absorption spectra of amorphous and crystalline nano-Al2O3 powders.Nanostructured Materials,1997, 8(5):605-610
[8]Chen N W, Readey D W, Moore J J. Mechanisms of oxide whiskers growth.Ceramic Engineering and Science Proceedings,1994, 15(4):170-180
[9]Tang C C, Fan S S, Li P, et al. In situ catalytic growth of Al2O3 and Si nanowires.Journal of Crystal Growth,2001, 224(1/2):117-121
[10]Zhou J, Deng S Z, Chen J, et al. Synthesis of crystalline alumina nanowires and nanotrees.Chemical Physics Letters,2002, 365(5/6):505-508
[11]杨 琪, 刘 磊, 沈 彬, 等(YANG Qi, et al). 氧化铝纳米线的催化氧化法制备及表征. 无机材料学报(Journal of Inorganic Materials), 2007, 22(2): 233-236.
[12]张 璐, 姚素薇, 张卫国, 等(ZHANG Lu, et al). 氧化铝纳米线的制备及其形成机理. 物理化学学报(Acta Phys-Chim. Sin.), 2005, 21(11): 1254-1258.
[13]姚素薇, 莫 敏, 韩玉鑫, 等. 铝阳极氧化法制备Al2O3纳米线. 电镀与涂饰, 2005, 24(4): 1-3.
[14]Zhou J H, He J P, Zhao G W, et al. Alumina nanostructures prepared by two-step anodization process.Transactions of Nonferrous Metals Society of China,2007, 17(1):82-86
[15]潘金芝, 赵 红, 陈春焕, 等(PAN Jin-Zhi, et al). 由多孔型阳极氧化铝制备纳米氧化铝纤维. 无机材料报(Journal of Inorganic Materials), 2006, 21(4): 828-832.
[16]李莉娟, 孙凤久, 楼丹花, 等. 纳米氧化铝的晶型及粒度对其红外光谱的影响. 功能材料, 2007, 38(3): 479-481.
[17]古堂生, 林光明(GU Tang-Sheng, et al). 非晶态和晶态纳米氧化铝粉的相变与红外光谱. 无机材料学报(Journal of Inorganic Materials), 1997, 12(6): 842-843.
[18]Thompson G E, Furneaux R C, Wood G C, et al. Nucleation and growth of porous anodic films on aluminum.Nature,1978, 272(5652):433-435
[19]Xiao Z L, Han C Y, Welp U, et al. Fabrication of alumina nanotubes and nanowires by etching porous alumina membranes.Nano Letters,2002, 2(11):1293-1297

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