Galvanostática

Galvanostática refers to an electrochemical technique where the electrical current is held constant during an electrochemical process. In this method, a galvanostat is used to deliver a precisely controlled and unchanging current to an electrochemical cell. This contrasts with potentiostatic methods, where the electrical potential is kept constant. When using the galvanostatic method, the potential of the working electrode is allowed to vary as the electrochemical reaction proceeds and the composition of the solution changes. The resulting potential-time profile provides valuable information about the kinetics and thermodynamics of the electrochemical reactions occurring. Galvanostatic techniques are widely employed in various fields, including electroplating, battery research, corrosion studies, and electroanalysis. By controlling the current, researchers can investigate reaction mechanisms, determine rate constants, and study the behavior of electrochemical systems under specific current loads. The constant current ensures that the rate of electron transfer is fixed, allowing for a direct correlation between the time of electrolysis and the amount of material consumed or produced.