The role of mass transfer in the kinetics of anodic dissolution of gas-evolving metallic surfaces

Autor: Sedahmed, G. H., Mansour, I. A. S., Zatout, A. A., Abdel-Hay, N. A.
Zdroj: Journal of Applied Electrochemistry; July 1980, Vol. 10 Issue: 4 p543-547, 5p
Abstrakt: The rate of anodic dissolution of copper in phosphoric acid above the potential where oxygen evolution takes place was studied. Variables investigated were oxygen discharge rate, phosphoric acid concentration and electrode position. The mass transfer coefficient of the anodic dissolution of copper in phosphoric acid was related to the oxygen discharge rate and the physical properties of the solution by the equations for a vertical electrode:k=aV0.2(?/u)0.93 for a horizontal electrode:k=aV0.21(?/u)0.93
Databáze: Supplemental Index