Cyclic Voltammetry for a Redox Reaction with Diffusion
Cyclic Voltammetry for a Redox Reaction with Diffusion
This Demonstration shows a numerical simulation of the cyclic-voltammetric response for a one-step redox reaction () involving two soluble species. Mass transport of both species is characterized as 1D semi-infinite diffusion from or toward a planar electrode in a quiescent electrolyte. Cyclic voltammogram and interfacial concentration versus potential curves are plotted. You can experiment with the effects of electron transfer kinetics, mass transport, and potential scan rate using the controls for the dimensionless parameters. You can also explore the dependence on initial and reversal potentials, and .
A+e⟷B
ξ
init
ξ
rev