Fundamentals and Applications of Electrochemical Impedance Spectroscopy - A Didactic Perspective
Achim Habekost
Abstract
Two experiments are presented to introduce students to the utility of electrochemical impedance spectroscopy (EIS) in finding electrodes suitable for applications such as battery development. We used different metal and carbon nanotube (CNT) screen-printed electrodes (SPEs) and compared EIS with cyclic voltammetry (CV) curves. In addition, we prepared the SPEs with graphene powder to show the different behaviour of modified and unmodified SPEs with CV and EIS.
Topics & Concepts
Dielectric spectroscopyCyclic voltammetryMaterials scienceCarbon nanotubeElectrical impedanceElectrodeGrapheneElectrochemistryPerspective (graphical)Battery (electricity)Analytical Chemistry (journal)NanotechnologySpectroscopyElectrical engineeringChemistryComputer scienceEngineeringChromatographyPhysical chemistryPhysicsThermodynamicsArtificial intelligenceQuantum mechanicsPower (physics)Analytical Chemistry and SensorsFuel Cells and Related MaterialsElectrochemical Analysis and Applications