Electrochemical Methods and Their Application

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Course teacher

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Status of the course

Course objectives

Student will acquire proficiency in knowledge that allowed him to perform electrochemistry experiment and complete the research of mechanism and kinetics of electrode processes.

Course enrolment requirements and entry competences required for the course

Learning outcomes expected at the level of the course (4 to 10 learning outcomes)

After the successfully passed exam student is able to:
- explain the mechanism and kinetics of electrode processes
- properly choose the experimental method of measurement
- carry out electrochemical experiment independently
- analyze the experimental results
- predict the behavior of metallic materials under different conditions.

Course content broken down in detail by weekly class schedule (syllabus)

1st week: Introduction. Metal/electrolyte phase boundary.
2nd week: Electrochemical experiment. Electrochemical cell and electrodes. Electrode materials. Calibration of electrodes and cell.
3rd week: Electricity passage through electrochemical cell. Instruments (potentiostat/galvanostat).
4th week: Hydrodynamic electrodes. Limiting current at hydrodynamic electrodes. Rotating disc electrode and rotating ring-disc electrode.
5th week: Linear potential sweep methods. Polarization resistance method measurement. Tafel method.
6th week: Potentiodynamic polarization measurements in a wide potential range. Application of linear polarization methods - examples from practice.
7th week: Cyclic voltammetry. Cyclic voltammetry on planar and spherical electrode.
8th week: Cyclic voltammetry of coupled component systems. Application of cyclic voltammetry - examples from practice.
9th week: First test. Pulse methods. Chronoamperometry. Chronocoulometry. Chronopotentiometry.
10th week: Pulse voltammetry. Pulse polarography. Other pulse methods. Application of pulse methods - examples from practice.
11th week: Electrochemical impedance spectroscopy. Basic of alternating current. Detection and measuring of impedance.
12th week: Impedance and equivalent circuit of electrochemical cell. Faradaic impedance of simple electrode processes.
13th week: Presentation of results in complex impedance planes. Complexes systems and constant phase element.
14th week: Admittance. A.c. voltammetry. A.c. polarography. Application of impedance methods - examples from practice.
15th week: Second test.
Exercises:
Polarization of copper in NaCl solution. Investigation of electrochemical behavior of iron using cyclic voltammetry. Chronoamperometric and chronopotentiometric growth of oxide films on aluminum. Characterization of oxide films on aluminum using electrochemical impedance spectroscopy. Study of corrosion behavior of iron using Impedance spectroscopy. Negative differential effect of magnesium.

Format of instruction:

Student responsibilities

Lecture attendance: 80 %. Laboratory exercises attendance: 100 %.