Effect of Manganese Content on the Fabrication of Porous Anodic AluminaReport as inadecuate




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Journal of NanomaterialsVolume 2012 2012, Article ID 752926, 9 pages

Research ArticleInstitute of Nano Electronic Engineering, Universiti Malaysia Perlis, Seriab, Kangar, 01000 Perlis, Malaysia

Received 29 February 2012; Revised 26 April 2012; Accepted 3 May 2012

Academic Editor: Fengxi Chen

Copyright © 2012 C. H. Voon et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The influence of manganese content on the formation of well-ordered porous anodic alumina was studied. Porous anodic alumina has been produced on aluminium substrate of different manganese content by single-step anodizing at 50 V in 0.3 M oxalic acid at 15°C for 60 minutes. The well-ordered pore and cell structure was revealed by subjecting the porous anodic alumina to oxide dissolution treatment in a mixture of chromic acid and phosphoric acid. It was found that the manganese content above 1 wt% impaired the regularity of the cell and pore structure significantly, which can be attributed to the presence of secondary phases in the starting material with manganese content above 1 wt%. The pore diameter and interpore distance decreased with the addition of manganese into the substrates. The time variation of current density and the thickness of porous anodic alumina also decreased as a function of the manganese content in the substrates.





Author: C. H. Voon, M. N. Derman, and U. Hashim

Source: https://www.hindawi.com/



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