|
|
investigation of corrosion protection properties of tio2-cdo nanocomposite coating prepared by sol-gel method on copper
|
|
|
|
|
نویسنده
|
hajiyan pour farnaz ,behpour mohsen ,shabani-nooshabadi mehdi ,jafari yaser
|
منبع
|
journal of nanostructures - 2020 - دوره : 10 - شماره : 1 - صفحه:52 -63
|
چکیده
|
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.
|
کلیدواژه
|
afm ,eis ,nanocomposite ,sol-gel ,tio2-cdo
|
آدرس
|
university of kashan, faculty of chemistry, department of analytical chemistry, iran, university of kashan, faculty of chemistry, department of analytical chemistry, iran, university of kashan, faculty of chemistry, department of analytical chemistry, iran, university of kashan, faculty of chemistry, department of analytical chemistry, iran
|
پست الکترونیکی
|
y.j.arisman@gmail.com
|
|
|
|
|
|
|
|
|
|
|
|
Authors
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|