University of Kashan Journal of Nanostructures 2251-7871 10 1 2020 01 01 Investigation of corrosion protection properties of TiO2-CdO nanocomposite coating prepared by sol-gel method on copper 52 63 100450 10.22052/JNS.2020.01.007 EN Farnaz Hajiyan Pour Department of Analytical Chemistry, Faculty of Chemistry, University Of Kashan, I.R. Iran Mohsen Behpour Department of Analytical Chemistry, Faculty of Chemistry, University Of Kashan, I.R. Iran Mehdi Shabani-nooshabadi Department of Analytical Chemistry, Faculty of Chemistry, University Of Kashan, I.R. Iran Yaser Jafari Department of Analytical Chemistry, Faculty of Chemistry, University Of Kashan, I.R. Iran Journal Article 2019 02 10 the Sol–gel nanocomposite coatings have been investigated for copper metal as a potential replacement for the hazardous and banned hexavalent chromate conversion coatings. TiO2–CdO nanocomposite thin films were deposited on copper using the sol–gel method. The sol-gel coatings were prepared using a sol obtained by the hydrolysis and condensation of tetra-o-butyl titanate. They were doped with cadmium oxide inhibitor to provide active corrosion protection. The synthesized coatings were characterized by X-ray diffraction (XRD) and atomic force microscopy (AFM). The anticorrosion performances of TiO2-CdO nanocomposite coatings were investigated in 3.5% NaCl solution by the potentiodynamic polarization technique Tafle and electrochemical impedance spectroscopy (EIS). The potential corrosion increases from -210 mV versus Ag/AgCl (3M) for uncoated copper to -202 mV versus Ag/AgCl (3M) for TiO2-CdO nanocomposite-coated copper electrodes. The results of this study clearly ascertain that the TiO2-CdO nanocomposite has outstanding potential to protect the copper against corrosion in a chloride environment.. https://jns.kashanu.ac.ir/article_100450_ea75f7ba220f0e3572cea6ba3290b827.pdf