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Fabrication of Nanoporous Template of Aluminum Oxide with High Regularity Using Hard Anodization Method

Authors: Hamed Rezazadeh, Majid Ebrahimzadeh, Mohammad Reza Zeidi Yam

Abstract:

Anodizing is an electrochemical process that converts the metal surface into a decorative, durable, corrosion-resistant, anodic oxide finish. Aluminum is ideally suited to anodizing, although other nonferrous metals, such as magnesium and titanium, also can be anodized. The anodic oxide structure originates from the aluminum substrate and is composed entirely of aluminum oxide. This aluminum oxide is not applied to the surface like paint or plating, but is fully integrated with the underlying aluminum substrate, so cannot chip or peel. It has a highly ordered, porous structure that allows for secondary processes such as coloring and sealing. In this experimental paper, we focus on a reliable method for fabricating nanoporous alumina with high regularity. Starting from study of nanostructure materials synthesize methods. After that, porous alumina fabricate in the laboratory by anodization of aluminum oxide. Hard anodization processes are employed to fabricate the nanoporous alumina using 0.3M oxalic acid and 90, 120 and 140 anodized voltages. The nanoporous templates were characterized by SEM and FFT. The nanoporous templates using 140 voltages have high ordered. The pore formation, influence of the experimental conditions on the pore formation, the structural characteristics of the pore and the oxide chemical reactions involved in the pore growth are discuss.

Keywords: Alumina, Nanoporous Template, Anodization

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1076704

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References:


[1] Y. Li, G.W. Meng, L.D. Zhang, F. Philipp, "Ordered semiconductor ZnO nanowire arrays and their photoluminescence properties", Appl. Phys. Lett. 76 , 2000, pp. 2011-2013.
[2] L. Zhao, M. Yosef, M. Steinhart, P. Goring, H. Hofmeister, U. Gosele, et al., "Porous silicon and slumina as chemically reactive templates for the synthesis of tubes and wires of SnSe, Sn, and SnO2", A. Chem. Int. Ed. 45 , 2006, pp. 311-315.
[3] T. Yanagishita, K. Nishio, H. Masuda, "Fabrication of metal nanohole arrays with high aspect ratios using two-step replication of anodic porous alumina", Adv. Mater. 17, 2005, pp. 2241-2243.
[4] S. Zhao, H. Roberge, A. Yelon, T. Veres, "New application of AAO template: a mold for nanoring and nanocone Arrays", J. Am. Chem. Soc. 128, 2006, pp. 12352-12353.
[5] H. Masuda, K. Yasui, K. Nishio, "Fabrication of ordered arrays of multiple nanodots using anodic porous alumina as an evaporation mask", Adv. Mater. 12 , 2000, pp. 1031-1033.
[6] G.E. Thompson, Y. Xu, P. Skeldon, K. Shimizu, S.H. Han, G.C. Wood, "Anodic oxidation of aluminium", Philos. Mag. B. 55, 1987, pp. 651-667.
[7] S. Anderson, "Mechanism of electrolytic oxidation of aluminum", J. Appl. Phys. 15, 1944, pp. 477- 481.
[8] H. Takahashi, M. Nagayama, H. Akahori, A. Kitahara, "Electronmicroscopy of porous anodic oxide films on aluminium by ultra-thin sectioning technique: part 1, the structrual change of the film during the current recovery period", J. Electron. Microsc. 22 , 1973, pp. 149- 157.
[9] H. Ghaforan, M. Ebrahimzadeh, "Self-organized Formation of Hexagonal Pore Arrays in Anodic Alumina Fabrication", J. Mater. Sci. & Eng., 2011, pp. 82-85.
[10] H. Masuda, K. Fukuda, "Ordered metal nanohole arrays made by a two-step replication of honeycomb structures of anodic alumina", Science, 268,1995, pp. 1466-1468.
[11] H. Pan, J. Lin, Y. Feng, H. Gao, "Electrical-bridge model on the selforganized growth of nanopores in anodized aluminum oxide", IEEE Trans. Nanotechnol. 3 ,2004, pp. 462-467
[12] A. Sarker, J. Khan, G.G. Basumallick, "Fabrication of copper nanowires by electrodeposition using anodic alumina and polymer templates", Bull. Mater Sci. 30 , 2007, pp. 271-290.