Chronoamperometry is an electrochemical technique used to study the current response of an electrochemical cell over time when a potential step is applied. This method helps in understanding the kinetics of electron transfer and the concentration of reactants in a solution. During a chronoamperometric experiment, a constant voltage is applied, and the resulting current is measured as a function of time. The data obtained can provide insights into various processes, such as diffusion, adsorption, and reaction mechanisms, making it valuable in fields like analytical chemistry and materials science.