Impedance Spectroscopy (IS) and Electrochemistry of Solids: Fundamentals and Applications
Code: CEM 162
Credits: 05
Elective subject
Contents:
- Introduction - basic concepts about impedance;
- Alternating current and direct current; complex numbers;
- The different formalisms for presenting impedance data: impedance, admittance, electrical module;
- Representation in the complex plane (Nyquist diagram) and Bode graph;
- Characteristics of Nyquist diagram: evolution with temperature, frequency distribution, relaxation frequency; decentralization angle;
- electrode reactions; ionic and electronic conductivity;
- Dielectric relaxation and conduction: equivalent models and circuits;
- Practical exercises: measurements of ideal RC circuits; Measurement of the resistance of a model ionic glass by IS, as a function of temperature; calculation of the electrical (ionic) conductivity and activation energy for ionic conduction.
- Solid state electrochemistry concepts.
References:
- E. Barsoukov, J.R.Macdonald, Impedance Spectroscopy, Theory, Experiment, and applications, 2005, 2nd edition, John Wiley&Sons.
- V.F. Lvovich, Impedance Spectroscopy, Applications to Electrochemical and Dielectric Phenomena, 2012, John Wiley & Sons.
- M.E. Orazem, B. Tribollet, Electrochemical Impedance Spectroscopy, 2008, John Wiley & Sons.
- C. Déportes et all, «Electrochimie du Solide», Presses Universitaires de Grenoble, 1994.