Affiliation:
1. Zhejiang University of Technology
Abstract
The electrochemical behavior of anodic dissolution of copper electrode was investigated in non-cyanide alkaline electrolyte containing 1-hydroxyethylene-1, 1-diphosphonic acid (HEDPA) as a complexing agent. Electrochemical behavior of copper electrode was studied by cyclic voltammetry. X-ray photoelectron spectroscopy was used to study morphologies of copper electrode after dissolution under different potentials. The results showed that in cyclic voltammetry curve of the 1-hydroxyethylene-1,1-diphosphonic Acid(HEDPA) baths, the first peak of copper anode was diffusion-controlled, associated with the formation of Cu2O. The second oxidation peak came from generating CuO and the third peak was the formation of CuO/Cu(OH)2 compound.
Publisher
Trans Tech Publications, Ltd.
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