Electrochemical synthesis of polypyrrole (PPy) and PPyǀmetal composites on copper electrode and investigation of their anticorrosive properties

► Corrosion behaviour of metal doped PPy coated Cu was investigated first time. ► Increase in the amount of cation increased the polarization resistance of copper. ► The best corrosion protection was provided by PPy|Zn and PPy|Ni coatings.