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Randles-Sevcik equation

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Electrochemistry index
Randles-Sevcik equation diagram
calc
This calc allows the use of cyclic voltammetry to determine the diffusion coefficient or solution concentration. CalcTool's unit menus allow convenient units to be used. Constants are automatically adjusted appropriately for your choice.
Peak current
Electrons involved
Electrode area
Sweep rate
Temperature
Concentration
Diffusion coefficient

Concentration
Diffusion coefficient
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notes
Fill in the input boxes, including either the concentration or the diffusion coefficient box. Calctool will find the final variable.
It should be noted that a single point is not normally sufficient to give an accurate calculation. Usually a plot is constructed to determine the value from multiple results at different scan rates. This technique also gives verification that the cell behavior follows the equation properly.