The Equation for Chronoamperometric Current at Finite Disk Electrodes

Abstract

Abstract: Asimple analytical expression for the chronoamperometric current at finite disk electrodes, which is accurate at any time, is given by:i_t=4nFD_RT₀θ/(1+θ ) f(Υ)=0.7852+0.8862τ^-1/2+0.2148τ^1/2/(1.128+τ^1/2) Where n is the number of electrons involved in the oxidation of substance R, Fthe faraday. DRis the diffusion coefficient of R, τ0 the radius of the disk electrode, C_R^*is the bulk concentration of substance R, t is the time and τ=4D_Rt/r₀²r₀, 0=expnF(E-E⁰)/RT].

Key words: Finite disk electrode, Equation for chronoamperometric current, Electrochemistry

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Zhang Zu-xun . The Equation for Chronoamperometric Current at Finite Disk Electrodes[J]. Chem. J. Chinese Universities, 1991, 12(4): 458.

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The Equation for Chronoamperometric Current at Finite Disk Electrodes

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