Oxide Dissolution Treatment of Porous Anodic Alumina

Abstract:

In this study, oxide dissolution treatment was used for the formation of well ordered porous anodic alumina. Porous anodic alumina was formed on mechanically polished high purity aluminium by anodizing at 50 V in 0.3 M oxalic acid of 15°C for 60 minutes. It is observed that the pore arrangement of as anodized porous anodic alumina was randomly distributed and showed no ordered hexagonal cell structure. As anodized porous anodic alumina were then subjected to oxide dissolution treatment of increasing exposure duration, up to three minutes. Micrographs were captured by using scanning electron microscope. Pore arrangement of porous anodic alumina subjected to oxide dissolution treatment up to two minutes were similar to one another where no ordered periodic structures were formed. .When porous anodic alumina subjected to oxide dissolution treatment for three minutes, a perfect hexagonal pore arrangement was obtained.

• Periodical: Advanced Materials Research (Volume 1109)
• Pages: 73-77
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1109.73
• Online since: June 2015
• Authors: Chun Hong Voon*, Mohd Nazree B. Derman, U. Hashim, Bee Ying Lim, Sam Sung Ting
• Keywords: Anodizing, Oxalic Acid, Oxide Dissolution Treatment, Porous Anodic Aluminium Oxide

References

[1] F. Keller, M.S. Hunter, and D.L. Robinson, Structural features of oxide coatings on aluminium, J. Electrochem. Soc. 100 (1953), 411-419.

DOI: 10.1149/1.2781142

[2] S. Ono and N. Masuko, Evaluation of pore diameter of anodic porous films formed on aluminium, Surf. Coat. Technol. 169 (2003), 139-142.

DOI: 10.1016/s0257-8972(03)00197-x

[3] H. Masuda and K. Fukuda, Ordered metal nanohole arrays made by a two-step replication of honeycomb structures of anodic alumina, Science. 268 (1995), 1466-1468.

DOI: 10.1126/science.268.5216.1466

[4] N. Kwon, K. Kim, J. Heo, and I. Chung, Fabrication of ordered anodic aluminum oxide with matrix arrays of pores using nanoimprint, J. Vac. Sci. Technol. A 27 (2009), 803-807.

DOI: 10.1116/1.3139884

[5] C.Y. Liu, A. Datta, and Y.L. Wang, Ordered anodic alumina nanochannels on focused-ion-beam-prepatterned aluminum surfaces, Appl. Phys. Lett. 78 (2001), 120-122.

DOI: 10.1063/1.1335543

[6] G.H. Jeong, S.K. Lim, J.K. Park, D. Lee, B.K. Lee, and S.J. Suh, Microprocesses and Nanotechnology, 2007 Digest of papers (2007),192-193 .

[7] L. Zaraska, G.D. Sulka, J. Szeremeta, and M. Jaskuła, Porous anodic alumina formed by anodization of aluminum alloy (AA1050) and high purity aluminium, Electrochim. Acta 55 (2010), 4377-4386.

DOI: 10.1016/j.electacta.2009.12.054

[8] Tsangaraki-Kaplanoglou, S. Theohari, T. Dimogerontakis, Y.-M. Wang, H.-H. Kuo, and S. Kia, Effect of alloy types on the anodizing process of aluminium, Surf. Coat. Technol. 200 (2006), 2634-2641.

DOI: 10.1016/j.surfcoat.2005.07.065

[9] C. H. Voon, M. N. Derman, and U. Hashim, Effect of manganese content on the fabrication of porous anodic alumina, J.Nanomater. 2012 (2012), 1-9.

DOI: 10.1155/2012/752926

[10] C. H. Voon, M. N. Derman, U. Hashim, K. R. Ahmad, and K. L. Foo, Effect of temperature of oxalic acid on the fabrication of porous anodic alumina from Al-Mn alloys, J.Nanomater. 2013 (2013), 1-8.

DOI: 10.1155/2013/167047

[11] C. H. Voon, M. N. Derman, U. Hashim, and K. L. Foo, Effect of anodizing voltage on the formation of porous anodic alumina on Al-0.5wt% Mn alloys, Adv. Mat. Res. 626 (2013), 610-614.

DOI: 10.4028/www.scientific.net/amr.925.455

[12] C. H. Voon, M. N. Derman, U. Hashim and K. R. Ahmad, Effect of anodizing voltage on the growth kinetics of porous anodic alumina on Al-0.5 wt% Mn alloys, Adv. Mat. Res. 795 (2013), 56-59.

DOI: 10.4028/www.scientific.net/amr.795.56

[13] C. H. Voon, M. N. Derman, U. Hashim, and K. L. Foo and T. Adam, Effect of anodizing voltage on the morphology and growth kinetics of porous anodic alumina on Al-0.5 wt% Mn alloys, Adv. Mat. Res. 832 (2014), 101-106.

DOI: 10.4028/www.scientific.net/amr.832.101

[14] W. J. Stepniowski, D. Zasada, & Z. Bojar, Synthesis of anodic aluminum oxide (AAO) at relatively high temperatures. Study of the influence of anodization conditions on the alumina structural features, Surf. Coating Tech. 206(2011), 265-272.

DOI: 10.1016/j.surfcoat.2011.07.020

[15] K. Nielsch, J. Choi, K. Schwirn, R. B. Wehrspohn, & U. Gösele, Self-ordering regimes of porous alumina:  the 10 porosity rule, Nano Lett. 2 (2002), 677-680.

DOI: 10.1021/nl025537k

[16] Y. C. Choi, J. Y. Hyeon and S. D. Bu, Effects of anodizing voltages and corresponding current densities on self-ordering process of nanopores in porous anodic aluminas anodized in oxalic and sulfuric acids, J. Korean Phys. Soc. 55(2009), 835-840.

DOI: 10.3938/jkps.55.835

[17] A. Belwalkar, E. Grasing, W. Van Geertruyden, Z. Huang, and W.Z. Misiolek, Effect of processing parameters on pore structure and thickness of anodic aluminum oxide (AAO) tubular membranes, J. Memb. Sci. 319(2009), 192-198.

DOI: 10.1016/j.memsci.2008.03.044

[18] C.H. Voon, M.N. Derman, U. Hashim, K.R. Ahmad & L.N. Ho, A simple one-step anodising method for the synthesis of ordered porous anodic alumina, J. Exp. Nanosci. 9 (2014), 106-112.

DOI: 10.1080/17458080.2011.630151