About the book
Electrochemical impedance spectroscopy (EIS) is a complex analytical technique that is basically used to characterize electrochemical systems. As a non-destructive approach, EIS serves to inaugurate the electrical response over an array of frequencies using an alternating current (AC). In other words, and for the system under investigation, a perturbation (either constant or variable) is being introduced using a potential with a small amplitude, and accordingly, the instrument recognizes and translates the ensuing changes as an impedance diagram. The generated data are a bit complex and need careful analysis.
As an analytical technique with realms of applications, EIS has seen major progress during the past few years. One reason could be the feasibility of implementing EIS in a system, and the other would be the usefulness of EIS data in determining properties such as reaction rate, as well as the diffusion coefficients. Applications of EIS varied between corrosion analysis and inhibition, food and drug analysis, monitoring the performance of batteries, and developing biosensors, etc. Impedance microbiology which is used to monitor bacterial growth in a sample, and tissue electrical impedance which is basically used for detecting abnormalities in morphology and health of tissues, are other examples for the applications of EIS.