Title of article :
Electrochemical Corrosion Studies of Zn-CuO and Zn-NiO-CuO Composite Coatings on Mild Steel
Author/Authors :
Deepa, Kallappa Department of Studies in Chemistry - School of Chemical Sciences - Kuvempu University , Venkatesha, Thimmappa Venkatarangaiah Department of Studies in Chemistry - School of Chemical Sciences - Kuvempu University , Nagaraja, Chandrakanth Department of Studies in Chemistry - School of Chemical Sciences - Kuvempu University , Vinutha, Mutugadahalli Rangaswamy Department of Studies in Chemistry - School of Chemical Sciences - Kuvempu University
Abstract :
Copper oxide and nickel oxide-copper oxide (NiO-CuO) metal oxide nanoparticles were prepared by co-precipitation method in aqueous solution using sodium hydroxide as precipitating agent and Cetyl Trimethyl Ammonium Bromide (CTAB) as a surfactant. The particles were characterized by XRD, SEM, EDS and FTIR analysis. The crystallite sizes of both metal oxide particles were in the nano range calculated by Debye-Scherrer equation. The prepared metal oxide nanoparticles were employed for the fabrication of zinc-composite coating on mild steel by electroplating and their corrosion behaviour was investigated by Tafel and Electrochemical impedance spectroscopy in corrosive media of 3.5% NaCl solution. The surface morphology of coated steel articles and also their corrosion morphology have been characterized by scanning electron microscopic (SEM) images
Keywords :
NiO-CuO nanoparticles , Zn-composite coating , Corrosion , Electrochemical impedance spectroscopy , Tafel
Journal title :
Astroparticle Physics
