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 |
| Dates |
Assignment to Modules
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PH0030: Fortgeschrittenenpraktikum für Bachelorstudierende / Advanced Lab Course for B.Sc. Students
This module is included in the following catalogs:- Mandatory Modules in Bachelor Programme Physics (5th Semester, Specialization AEP)
- Mandatory Modules in Bachelor Programme Physics (5th Semester, Specialization BIO)
- Mandatory Modules in Bachelor Programme Physics (5th Semester, Specialization KM)
- Mandatory Modules in Bachelor Programme Physics (5th Semester, Specialization KTA)
- PH1030: Fortgeschrittenenpraktikum für Masterstudierende / Advanced Lab Course for Master Students
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PH9130: Physikalisches Fortgeschrittenenpraktikum für Lehramtsstudierende / Advanced Lab Course in Physics for M.Ed. Students
This module is included in the following catalogs:- Physics Modules for Students of Education
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. |
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| Links |
TUMonline entry
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