Electrochemical preparation and characterization of Ni deposition on aluminum surface

R.K. Pathak, Priyanka Wagela, S. Gohar and P. Ramshankar¹

Department of Chemistry,Govt.Holkar Science College, Indore (India) ¹RRCAT, Indore (India).

Received on January 29, 2010 and accepted on March 09, 201

ABSTRACT

The electrochemical preparation and characterization of Ni deposition was performed on aluminum surface. The Aluminium electrode was anodically oxidized to obtain a porous alumina template. The properties of various porous Al oxide films were compared in terms of their electrochemical responses during Ni eletrodeposition. The corrosion behaviour of deposits was evaluated by polarization curves in 0.1 M NaCl solution at room temperature. The surface morphology of deposited films were investigated by scanning electron microscopy (SEM). It has been found that the deposition of Ni on Al surface disturbs the Aluminum coating’s regular surface structure. The compositional analysis of electrodeposited films was investigated by Energy dispersive X-ray spectroscopy (EDAX).

Keywords : Electro deposition, Polarisation.