ELECTRODE POTENTIALS

Electrode potential occurs at the interface among an electrode and electrolyte because of the transfer of charged species beyond the interface, particular adsorption of ions at the interface, and particular adsorption/orientation of polar molecules, include those of the solvent.

The measured electrode potential might be either which at equilibrium on the working electrode ("reversible potential") or a potential alongwith a non-zero net reaction on the working electrode but zero net current , or a potential with a non-zero net current on the working electrode (such as in galvanic corrosion or voltammetry). The potential that have the Reversible property can be sometimes converted to the standard electrode potential for a specific electroactive species through extrapolation of the measured values to the standard state.

The value of the electrode potential beneath non-equilibrium relies on the nature and composition of the contacting phases and on the kinetics of electrode reactions at the interface.