| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9783118 | Materials Chemistry and Physics | 2005 | 7 Pages |
Abstract
Anodic aluminum oxide (AAO) was used as a template to prepare highly ordered Ni-Fe-Co alloy nanowire arrays. This membrane was fabricated with two-step anodizing method. It is found that there is an optimum barrier thickness to obtain a successful electrodeposition in pores of AAO. The thickness of barrier layer can be modified by additional electrochemical process after completing the anodizing step. Barrier layer thinning can create a rooted structure at the bottom side of the AAO pores and the electrodeposited nanowire arrays. The triple Ni-Fe-Co alloy was deposited in AAO membrane by ac voltage in a simple sulfate bath. The composition of nanowires shows anomalous deposition features between these ions. The difference of Ni2+, Fe2+ and Co2+ ion's diffusion rate can cause composition difference between nanowires that are deposited in membranes with various pore depths and a composition gradient along a single nanowire.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
A. Saedi, M. Ghorbani,