Electrochemistry - Electrochemical Impedance Spectroscopy (EIS) Theory

This webinar covers theoretical basics of Electrochemical Impedance Spectroscopy (EIS). More details can be found in our Application Notes at http://www.ameteksi.com/library/appli... and http://www.ameteksi.com/library/appli.... Please send your questions to [email protected]

Contents:
Click on the number behind the row to jump directly to that part in the video.
Introduction 0:00
Comparison of DC and AC techniques 0:40
EIS Fundamentals 3:04
Linearity - Butler Volmer Equation 4:58
Valid EIS Measurements 6:50
Why is frequency important? 9:09
Typical elements:
Resistance 10:51
Capacitance and Constant Phase Element 12:17
Inductance 14:30
Diffusion "Warburg Element" 16:32
Path of leas impedance - which way do I go? 17:41
Plotting of results: Bode and Nyquist (Complex Plane) Plots 21:15
Equivalent circuit analysis - building models 22:50
Frequency domain - deconvolution of parallel electrode processes 25:21
Bandwidth of the SYSTEM (potentiostat, cable and cell) 25:53
Effect of boosters on bandwidth 27:13
Points to consider for us 28:25
Advanced EIS testing: Harmonic Analysis 30:44
Advanced EIS testing: Multi-Sine 33:11
Key concepts and summary 34:41