Electrochemical kinetic parameters for the cathodic deposition of copper from dilute aqueous acid sulfate solutions

✍ Scribed by J. T. Hinatsu; F. R. Foulkes

• Book ID: 112056801
• Publisher: John Wiley and Sons
• Year: 1991
• Tongue: English
• Weight: 968 KB
• Volume: 69
• Category: Article
• ISSN: 0008-4034
• DOI: 10.1002/cjce.5450690224

✦ Synopsis

Abstract

The use of linear‐sweep voltammetry and chronopotentiometry for the determination of kinetic parameters for the electrolytic recovery of copper from a simulated acid‐copper electroplating waste solution was demonstrated. For the electrodeposition of copper from solutions of 0.007˜0.008 mol/L CuSO~4~ + 0.5 mol/L H2SO~4~ at 25°, the recommended values of the transfer coefficient (α) and exchange current density (i~0~) are α = 0.46±0.06 (95% confidence interval) and i~0~ = 11±4 A/m^2^. The close agreement between these values and the available literature values indicates the reliabilaity of the voltammetric and chronopotentiometric methods.