Vorlesung basierend auf Powerpoint-Präsentationen
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Arbeitsaufwand:
gesamt: 120 Stunden (1 LP = 1 CP = 30 h Arbeit)
davon Präsenzzeit: 45 Stunden (15 Wochen a 3,5 Stunden
oder als Blockveranstaltung
davon Eigenstudium: 75 Stunden
Voraussetzungen:
Grundkenntnisse der Thermodynamik
(Thermodynamik I und II von Prof. Atakan
im 3. und 4. Semester des Bachelor Maschinenbau)
Lernziele/Kompetenzen:
The students will learn about electrochemical processes to produce and purify materials as well as the use of analytical methods based on electrochemical effects. The students will be able to assess the industrial relevance of electrochemical processes and compare them to other processes. They will also learn about the use of electrochemical processes and methods in materials science and electrochemical energy technology to obtain in depth knowledge on materials properties.
Electrochemical processes are omnipresent. They are used for the production and purification of metals (e.g. chlorine, aluminum, copper etc.). Further uses are surface treatment (e.g. by galvanic deposition or electropolishing), forming (e.g. by electrophoretic deposition of ceramic powders), for the purification of waste water or soil as well as for many other processes. A more or less undesirable electrochemical effect is the corrosion of metals.
Electrochemical methods allow to study the composition and the reactivity of materials used for energy storage. In addition, electrochemical sensors (e.g. pH-electrode, lambda probes etc.) are used to control industrial processes. Furthermore, electrochemical methods are well established in trace analysis.
Transfer of electrons across a phase boundary causing oxidation or reduction reactions is common to all electrochemical processes.
Within the course the fundamental considerations to understand electrochemical processes will be discussed and their application in processes of technical relevance will be shown. The course is structured along the following topics:
Introduction into electrochemical processes
- Thermodynamics
- Kinetics
- Ways of electrochemical reactions
Electrochemical analytic methods
- Coulometry
- Voltammetry
- Impedance spectroscopy
Electrochemical methods for materials synthesis and purification
- Chlorine production
- Metal winning (e.g. aluminum)
- Metal refining (e.g. copper)
- Galvanic coating
Corrosion
Literatur:
Carl H. Hamann, W. Vielstich
Elektrochemie
Eliezer Gileadi
Physical Electrochemistry
Powerpoint presentation
Elektrochemische Prozesse und elektrochemische Messtechnik
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