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In the first five lectures the students are familiarized with the fundamentals of electrochemistry as a specific approach to investigation of redox reactions at the electrode from thermodynamic, kinetic and mechanistic point of view. At that occasion important concepts, relationships and contexts will be clarified. In the second part the detailed overview of all main electrochemical techniques and electroanalytical methods will follow together with explanation of their principle and with description of their application possibilities in various areas of chemistry. Qualitative evaluation of the obtained data and the interpretation of results is also an important part of the course.
Last update: Ludvík Jiří (22.08.2018)
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Students will be able to:
Last update: Ludvík Jiří (22.08.2018)
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R: Bard A.J., Faulkner L.R., Electrochemical Methods: Fundamentals and Applications, Wiley, 1980, 9780471055426 R: Koryta J., Dvořák J., Elektrochemie, Academia, Praha, 1983, R: Heyrovský J., Kůta J., Základy polarografie, Nakl. Československé akademie věd, Praha, 1962 A: Sawyer D.T, Sobkowiak A., Roberts J.L.: Electrochemistry for Chemists, Wiley 1995, 9780471594680 A: Wang, J.: Analytical Electrochemistry Wiley, 20069780471678793 A: Mindl, J.: Základy elektroorganické chemie, Academia, 2000. Last update: Ludvík Jiří (22.08.2018)
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1. Introduction, principles of electrochemistry, types of acquired information (reversible/irreversible oxidation and reduction, relationship to HOMO and LUMO) 2. General terms and their meaning (Electrodes of 1st and 2nd type, redox, electrolyte, anode, cathode, el. circuit, electrochem. cell, two- and three electrode system) 3. Non-faradaic processes (Electrode polarization, charging current, electric double-layer, adsorption, diffusion layer, electrocapillarity, experimental responses) 4. Faradaic processes (spontaneous, forced, transport-controlled electrochemical reactions, convection, migration, diffusion, Fick´s laws) 5. Nernst equation and its relevance (Equilibrium, reversibility, electromotoric power, principle of reference electrodes, equation describing reversible i-E curve) 6. Kinetic control of electrochemical reactions (Two types: homogeneous and heterogeneous, irreversibility and influence of antecedent and follow-up reactions) 7. Electrode kinetics (overpotential, exchange current, alpha-coeficient, Butler-Volmer equation and its relevance, Tafel plot and equation) 8. Types of electrochemical experiments and techniques, nomenclature, applications 9. Potentiostatic techniques with potential step (Cottrell equation, diffusion to planar and spheric electrodes, microelectrodes, chronoamperometry) 10. Potentiostatic techniques based on steady state (J. Heyrovský, development of polarography, mercury electrodes, rotating disk and ring electrodes) 11. Pulse analytical methods, NPP, DPP and their evaluation 12. Potentiostatic techniques based on transient state – potentiodynamic methods (LSV, cyclic voltammetry, interpretation of responses, diagnostic criteria) 13. Galvanostatic methods, Sand´ s equation 14. Electrochemical techniques based on bulk electrolysis (potentiostatic vs. galvanostatic preparative electrolyses, coulometry, electrolytic cells) 15. Anodic and adsorptive stripping analysis 16. AC-techniques and Faradaic impedance 17. Combination of electrochemistry with other physicochemical methods (UV-vis-IR-EPR spectroelectrochemistry, photo- and sono-electrochemistry, electrochemiluminescence) Last update: Ludvík Jiří (23.08.2018)
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Barek, J. a kol.: MOŽNOSTI INOVACÍ V ELEKTROANALYTICKÉ CHEMII, Praha 2006, http://www.vscht.cz/anl/paci/PAC/prezentace/elektroanalytika.pdf Last update: TAJ403 (30.08.2013)
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fundamental knowledge of physical and general chemistry Last update: Ludvík Jiří (23.08.2018)
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fundamental knowledge of physical and general chemistry Last update: Ludvík Jiří (23.08.2018)
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Teaching methods | ||||
Activity | Credits | Hours | ||
Účast na přednáškách | 1 | 28 | ||
Příprava na přednášky, semináře, laboratoře, exkurzi nebo praxi | 0.5 | 14 | ||
Příprava na zkoušku a její absolvování | 2 | 56 | ||
Účast na seminářích | 0.5 | 14 | ||
4 / 4 | 112 / 112 |
Coursework assessment | |
Form | Significance |
Regular attendance | 10 |
Oral examination | 90 |