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Impact of the type of anodic film formed and deposition time on the characteristics of porous anodic aluminium oxide films containing Ni metal

Gaël Zamora, Laurent Arurault, Peter Winterton, and René Bes

Bat 2R1, Université de Toulouse, 118 route de Narbonne, 31062 Toulouse Cedex 9, France

 

E-mail: arurault@chimie.ups-tlse.fr

Abstract: Porous anodic films containing nickel were prepared by AC electro-deposition. The porosity of the films was controlled by using different working conditions (anodisation electrolyte, voltage, and time). Then nickel was electro-deposited using an alternating voltage. The impact of the anodic film on the current density waveforms and the metal content can largely be explained by the porosity differences, while changing the deposition time caused changes due to over-oxidation of the aluminium substrate, experimentally proved by TEM. Finally, the impact of deposition time on the deposited metal was successfully fitted using an Elovich type law over a large time-span (up to 1800 s), showing the ability to achieve precise control of the metal content.

Keywords: aluminium – porous anodic film – metal AC electro-deposition

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-011-0039-9

 

Chemical Papers 65 (4) 460–468 (2011)

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