Publication | Open Access
Fundamentals and Applications of Electrochemical Impedance Spectroscopy - A Didactic Perspective
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2020
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EngineeringElectrode-electrolyte InterfaceChemistryTheoretical ElectrochemistryChemical EngineeringGraphene PowderDidactic PerspectiveAnalytical ChemistryElectrochemical InterfaceElectrode Reaction MechanismElectrical EngineeringScreen-printed ElectrodesSpectroelectrochemistryElectrochemical CellElectrochemistryElectrochemical Impedance SpectroscopyNatural SciencesSpectroscopyFundamental ElectrochemistryGrapheneElectrophysiologyElectroanalytical Sensor
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.