Potential step chronoamperometry at the wall-jet electrode: experimental
نویسندگان
چکیده
Experimental verification of the theory for the transient current response of a wall-jet electrode to a potential step is given. The systems studied are ferrocyanide and bromide oxidation in a specially designed large volume cell. Good and reproducible agreement between diffusion coefficients determined by this method and independent techniques is found. Optimized conditions, to avoid on the one hand the necessity of subtracting double-layer charging currents and on the other radial diffusion contributions. are defined.
منابع مشابه
The wall-jet electrode Potential step chronoamperometry
A theory is presented which describes the transient current response to a potential step at a wall-jet electrode, thus defining the “response time” of the electrode. Results are given in the form of a normalized transient as a function of a dimensionless time parameter which permits the analysis of experimental data for electrodes of any geometry and for any solution flow rate.
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