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FOPRA Experiment 22: Laser-Induced Current Transient Technique (AEP, KM)

Course 0000100022 in SS 2024

General Data

Course Type practical training
Semester Weekly Hours 1 SWS
Organisational Unit Physics of Energy Conversion and Storage
Lecturers Elena Gubanova
Responsible/Coordination: Aliaksandr Bandarenka

Assignment to Modules

Further Information

Courses are together with exams the building blocks for modules. Please keep in mind that information on the contents, learning outcomes and, especially examination conditions are given on the module level only – see section "Assignment to Modules" above.

additional remarks Determination of the potential of maximum entropy (PME), related to the potential of zero charge (PZC), is of importance to understand the mechanism of various electrode processes. In this lab course, laser-induced current transient (LICT) technique is implemented to fulfil the determination of the PME. This technique utilizes the so-called temperature jump effect to heat the electrode surface, resulting a sudden temperature change then to identify the sign of the electrode surface charge.The PME, useful in the assessment of stiffness of the interfacial water layer, is a potential at which the entropy of the double layer formation reaches its maximum. In the vicinity of PME, species can move through electric double layer (EDL) more easily and reaction should proceed quite fast, whereas the solvent structure is more rigid at potentials more remote from PME. In this case, one can correlate the PME measurements with the activity towards catalytic reactions, e.g. the hydrogenevolution reaction (HER).In this lab course, you have the opportunity to learn how to perform this LICT technique and understand the activity towards the HER correlation with the PME results.
Links TUMonline entry
TUMonline registration for 25: 02.04.2024-06.04.2024 (Woche mit Ostermontag, Schulen: Osterferien), 26: 08.04.2024-13.04.2024
TUMonline registration for 29: 29.04.2024-04.05.2024 (Mittwoch: Tag der Arbeit), 30: 06.05.2024-11.05.2024 (Donnerstag: Christi Himmelfahrt)
TUMonline registration for 33: 27.05.2024-01.06.2024 (Donnerstag: Fronleichnam, Schulen: Pfingstferien), 34: 03.06.2024-08.06.2024
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TUMonline registration for 31: 13.05.2024-18.05.2024, 32: 21.05.2024-25.05.2024 (Montag: Pfingstmontag, Schulen: Pfingstferien)
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