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Journal of Nanomaterials
Volume 2007 (2007), Article ID 46919, 6 pages
http://dx.doi.org/10.1155/2007/46919
Research Article

Electroless Fabrication of Cobalt Alloys Nanowires within Alumina Template

1Industrial Materials Institute, National Research Council Canada, Surface Technology Group, Boucherville, Quebec, Canada J4B 6Y4
2Materials Engineering Programme, Department of Process Engineering and Applied Science, Dalhousie University, Halifax, Nova Scotia, Canada B3J 2X4

Received 19 December 2006; Revised 12 May 2007; Accepted 30 May 2007

Academic Editor: Zhili Xiao

Copyright © 2007 Nazila Dadvand and Georges J. Kipouros. 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

A new method of nanowire fabrication based on electroless deposition process is described. The method is novel compared to the current electroless procedure used in making nanowires as it involves growing nanowires from the bottom up. The length of the nanowires was controlled at will simply by adjusting the deposition time. The nanowires were fabricated within the nanopores of an alumina template. It was accomplished by coating one side of the template by a thin layer of palladium in order to activate the electroless deposition within the nanopores from bottom up. However, prior to electroless deposition process, the template was pretreated with a suitable wetting agent in order to facilitate the penetration of the plating solution through the pores. As well, the electroless deposition process combined with oblique metal evaporation process within a prestructured silicon wafer was used in order to fabricate long nanowires along one side of the grooves within the wafer.