Inhaltsangabe1 Introduction 1.1 Why impedance? 1.2 Short history of impedance 1.3 Publications on impedance 2 Definition of the impedance and impedance of electrical circuits 2.1 Introduction 2.2 Electrical circuits containing resistances 2.2.1 Ohm's law 2.2.2 Kirchhoff's laws 2.3 Capacitance 2.4 Inductance 2.5 Laplace transform 2.6 Complex numbers 2.7 Fourier transform 2.7.1 Leakage 2.7.2 Aliasing 2.8 Impedance of electrical circuits 2.8.1 Application of the Laplace transform to the determination of impedances 2.8.2 Definition of the operational impedance 2.8.3 Application of the Fourier transform to the determination of impedances 2.8.4 Definition of the impedance 2.9 Circuit description code 2.10 Impedance plots 2.10.1 Interpretation of the Bode magnitude plots 2.10.2 Circuits with two semicircles 2.10.3 Circuits containing inductances 2.11 Summary 2.12 Exercises 3 Determination of impedances 3.1 Ac bridges 3.2 Lissajous curves 3.3 Phase sensitive detection (PSD), lock-in amplifiers 3.4 Frequency response analyzers (FRA) 3.5 Ac voltammetry 3.6 Laplace transform 3.7 Methods based on Fourier transform 3.7.1 Pulse or step excitation 3.7.2 Noise perturbation 3.7.3 The sum of sine waves excitation signal 3.7.4 Dynamic electrochemical impedance spectroscopy (DEIS) 3.8 Perturbation signal 3.9 Conclusions 3.10 Exercises 4 Impedance of the faradaic reactions in the presence of mass transfer 4.1 Impedance of an ideally polarizable electrode 4.2 Impedance in the presence of redox process in semi-infinite linear diffusion. Determination of parameters 4.2.1 General case 4.2.2 Dc reversible case 4.3 Analysis of impedance in the case of semi-infinite diffusion 4.3.1 Randles analysis 4.3.2 De Levie-Husovsky analysis 4.3.3 Analysis of cot f 4.3.4 CNLS analysis 4.4 Finite length linear diffusion 4.4.1 Transmissive boundary 4.4.2 Reflective boundary 4.5 Generalized Warburg element 4.6 Spherical diffusion 4.6.1 Semiinfinite external spherical diffusion 4.6.2 Finite length internal spherica

Andrzej Lasia obtained his PhD at the University of Warsaw in 1975. He continued to work at the University of Warsaw until 1982. In 1975-1976, and 1982-1983, he worked as a research associate at the University of Guelph, Ontario, Canada. Since 1983, Lasia has worked at the Université de Sherbrooke. Since his retirement in 2012, Lasia has continued to work at Université de Sherbrooke as an Associate Professor. Lasia's main scientific interests are in the area of electrode kinetics, electrocatalysis, and electrochemical impedance spectroscopy. He is the author of over 150 articles in scientific journals.