What is Electrochemical Impedance Spectroscopy (EIS)?
Electrochemical Impedance Spectroscopy (EIS) is a powerful and versatile analytical technique used to characterize the electrochemical properties of materials and systems. By applying a small AC voltage to a system and measuring the resulting current, EIS provides information on the impedance of the system over a range of frequencies. This technique is particularly useful in the study of catalytic processes as it allows for the investigation of various interfacial phenomena, including charge transfer resistance, double layer capacitance, and mass transport limitations.
