Abstract: In this work, expressions for concentration and current in steady-state and tran-sient-state experiments are given for microring electrodes. For the electrode reaction O+ne→R, assuming bulk concentration of R c_R~b=0, under steady-state conditions, we have
G_O=G_R=sum from μ=1 to ∞ α_μ integral from n=0 to ∞ f_μ (α)J_0 (αr/r_2) exp (-αz/r_2) dα
where
f_μ(α)=J_μ(α)/α~μ-sum from r=1 to μ (r_1/r_2)~p[1-(r_1/r_2)~2]~(μ-r)/2~(μ-ν)(μ-ν)! J,(αr_1/r_2)/α~ν
G_O=1 - (C_O/C_O~b), G_R=D_RC_R/(D_OC_O~b)
where c_O~b is the bulk concentration of species O. r_2, r_1 are outer and inner radii respectively. The...