Comparation of Corrosion Properties of Copper Bulk Samples and Nanowires Array of Electrodeposited Copper from Pyrophosphate Electrolyte

CZU 541.138.2+621.9.047.7

By using different electrochemical methods (OCP measurement, polarization measurements and electrochemical impedance spectra) it is demonstrated that the corrosion of copper in pyrophosphate solution is the one with oxygen depolarization. Measurements by the electrochemical impedance method of the resistance of corrosion of the array of nanowires of the electrodeposited copper into the pores of the template from Al₂O₃, have shown that the corrosion resistance is significantly affected by the pore size template.

Keywords: corrosion of copper, oxygen depolarization, impedance spectroscopy.