The use of a rotating disk electrode in the study of electrochemical kinetics and electrolytic processes

Abstract

cf. C.A. 49, 1447e. Rotating disk electrodes were preferable to Hg drop electrodes in the study of reactions on electrodes involving kinetic and catalytic processes. The reactions on disk electrodes proceeded as stationary processes which permitted the formulation of reactions, even if they were complicated. Moreover, the properties of the solns. and the angular rotation velocities could be varied within wide limits with disk electrodes, while only the pH and the compn. of the soln. can be varied with the Hg drop electrode. The limiting diffusion currents were calcd. for typical cases on the assumption that the diffusion coeffs. (D) of the reacting substances were equal, because they frequently are very close. When D1 != D2, the calcns. are no more complex in principle but require longer computations. [on SciFinder (R)]