MASS-TRANSPORT TO TUBULAR ELECTRODES

The mathematical treatment of mass transport in tubular electrodes has been examined for the EC process when a reversible electrode charge t ransfer is followed by a reversible chemical reaction. The transition from fast chemical reaction to slow chemical reaction is investigated. The system of convective-diffusion equations, representing the physic al phenomena, are solved using properties of the integral transform an d numerical computation of the integral equation. The effects of the c hemical equilibrium parameter, the axial velocity of the flow and the potential scan rate on theoretical current-potential curves are elucid ated and a simple procedure to determine the chemical reaction rate co nstant is presented.