Final Thesis

Revealing Charge Transfer in Flow-Electrodes by Optical Quantification

Key Info

Basic Information

Unit:
Chemical Process Engineering
Type:
Masterthesis
Focus/Key Topic:
experimental
Date:
07.04.2019

Contact

Flow electrodes have become of great interest for electrochemical applications in recent years. By flowing over a working electrode, the particles are charged and can be used for faradaic and non-faradaic surface reactions, like capacitive ion storage. The electrodes work according to the principle of a super capacitor where charge is stored in the electrostatic double layer of conductive particles suspended in a slurry. The exact path of charge transfer both, between the particles, and between particles and working electrode is yet unknown. Understanding the physics of this process will help to improve the system further and has big impact on future flow-electrochemistry.

In this work, a microfluidic desalination device shall be fabricated and used for characterization of flow electrodes. Electrochemical experiments shall be conducted to proof its desalination capability and its comparability to existing lab scale devices. The device shall be used to study the percolation of slurry particles which will be visualized and characterized in more detail using optical measurement techniques. Thereby, the connection between percolation and charge transfer shall be revealed.

You should be:

  • interested in practical work
  • curios and interested at learning
  • autonomous and accurate

The work offers you:

  • insights into a very innovative field of research
  • structured approach to scientific research
  • an extensive supervision
  • experience in practical lab work

If the topic catches your interest, please contact me. In a personal meeting we can talk about the topic in more detail.