Zb. Wu et Zx. Zhang, THE THEORY OF CHRONOAMPEROMETRIC CURRENT AT RING ELECTRODE AND ITS EXPERIMENTAL-VERIFICATION, Huaxue xuebao, 51(3), 1993, pp. 234-238
In this paper, the equation of the chronoamperometric current at ring
electrode is presented. It is a simple analytical expression which is
easy calculated and fit for any radius of ring electrode and any time.
In order to examine the validity of the theory, experimental studies
with K4Fe(CN)6 in 0.5 mol.dm-3 KCl solution were carried out at the go
ld micro-ring electrode. The experimental values are in good agreement
with the theoretical ones.