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Elektrochemistry connects transport of matter and of electric charge. It is a necessary tool for description of
batteries, fuel cells and electrolysers. The goal of the course is to formulate fundamental equations describing
elecrochemical processes by means of non-equilibrium thermodynamics and to present some of their solutions.
Last update: Šmíd Dalibor, Mgr., Ph.D. (14.05.2019)
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After solving homework problems and passing a test, the exam will consist of detailed discussion of a chosen topic, proving general understanding of the whole lecture. Last update: Pavelka Michal, doc. RNDr., Ph.D. (15.02.2021)
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Michal Pavelka, Václav Klika and Miroslav Grmela. Multiscale Thermo-Dynamics, de Gruyter (Berlin), 2018
Pavelka, M., Klika, V., Vágner, P., Maršík, F., Generalization of Exergy Analysis, Applied Energy 137 (2015), pp. 158-172
Atkins, de Paula, Physical Chemistry, OUP Oxford; 9 edition, 2009
Kjelstrup, S. and Bedeaux, D., Non-equilibrium thermodynamics of heterogeneous systems, World Scientific 2008 Last update: Pavelka Michal, doc. RNDr., Ph.D. (14.05.2019)
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To pass the exercises you should solve homeworks and pass a test. To pass the exam, you will be asked to prove that you understand what we talked about. Last update: Pavelka Michal, doc. RNDr., Ph.D. (15.02.2021)
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1) Review of Maxwell equations for electromagnetic field, magnetization and polarization.
2) Review of equation for transport of mixtures in mechanical equilibrium (Maxwell-Stefan diffusion relations). Entropy, free energy of mixtures. Entropy production.
3) Connection between Maxwell equations and diffusion equations. Lorentz force, electrochemical potential, Maxwell stress tensor. Basic rheological behavior of mixtures. Poisson equation. Ohm's law, Nernst-Planck-Poisson equations, Fick's law.
4) Electrochemical reactions, Butler-Volmer equation and equilibrium constants. Electrochemical tables, reference chemical potentials. Nernst relation, osmotic pressure, Donnan potential, open-circuit voltage and dissociation. Voltage of hydrogen fuel cells and redox flow batteries.
6) Transport equations, electrochemical reactions and description of hydrogen fuel cells.
7) Efficiency of energy producing devices, relation to entropy production. Stability using Braun-Le Chatelier principle. Last update: Pavelka Michal, doc. RNDr., Ph.D. (14.05.2019)
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