kronoamperometric

Kronoamperometric is a voltammetric technique used in electrochemistry. It involves applying a potential to an electrochemical cell and then measuring the resulting current as a function of time. Typically, a potential step is applied, and the current decay is observed. This decay provides information about the kinetics of the electrochemical reaction occurring at the electrode surface. The current-time response in chronoamperometry can often be described by Cottrell's equation, which relates the diffusion-controlled current to the concentration of the electroactive species, the diffusion coefficient, the electrode area, and time. Deviations from Cottrell behavior can indicate other processes such as adsorption, heterogeneous reactions, or mass transport limitations other than diffusion. Chronoamperometry is a versatile technique used to study reaction mechanisms, determine diffusion coefficients, and quantify electroactive species. It is commonly employed in research laboratories for the characterization of electrode materials and the investigation of redox processes.