Electrochemical Energy Systems

Junior Research Group

join EES

We are always looking for motivated people joining our group! Browse the open positions or send us an initiative application.

Open positions

Context

30% of CO2 emissions in German road traffic are caused by heavy duty vehicles, although they account for only 10% of all vehicles. Significant amounts of CO2 can therefore be saved in this sector by electrifying relatively few vehicles. This can be done most economically with fuel cells. For this purpose, fuel cells for long lifetimes (30 000h) must be developed.

Your task

You will work in a collaborative project on the development of long-life polymer electrolyte membrane (PEM) fuel cells for commercial vehicles. To this end, you will synthesize Pt catalysts by means of atomic layer deposition, conduct electrochemical experiments and testing in fuel cells.

Your profile
  • Excellent communication skills and team spirit are absolutely necessary
  • You are interested in the development of novel materials for a sustainable mobility
  • You work target-oriented and structured
  • You enjoy working with measurement methods and are interested in the physical relationships
The position
  • We offer excellent working conditions in the interdisciplinary “electrochemical energy systems” EES group with a nice atmosphere
  • Cutting edge equipment for fuel cells and material characterization
  • Typical duration of a PhD is planned for three years (80% TV-L 13)
  • The working language is English or German
  • Earliest possible start: as soon as possible
  • Familiy friendly, flexible working hours
Contact information

Severin Vierrath

Electrochemical Energy Systems,
IMTEK – Department of Microsystems Engineering,
University of Freiburg,
Georges-Koehler-Allee 103,
79110 Freiburg, Germany

Phone: +49 761 203-54060

Severin.Vierrath@imtek.uni-freiburg.de

Context

For the transformation to a CO2-neutral society, large amounts of green hydrogen are needed, e.g. for fuel cells, emission-free steel or power-to-X applications (fertilizers, …). Besides the electricity price, the investment costs and the lifetime of the electrolysers are significantly responsible for the hydrogen production costs. Due to the large cost reduction potential, alkaline electrolysis with a „anion exchange membrane“ (AEM) is a highly attractive technology. It promises to combine the advantages of the established alkaline and acidic membrane-based electrolysis, i.e. low-cost materials with high current densities and high efficiency.

Your task

You are working on electrodes for AEM electrolysis in a joint project with partners from industry and the university. The aim is to increase the efficiency and lifetime of the electrodes. To achieve this, you will optimize the microstructure of the electrodes based on the partners‘ materials and carry out measurements on an electrolysis testbench.

Your profile
  • Excellent communication skills and team spirit are absolutely necessary
  • You are interested in the development of novel materials for a sustainable society
  • You work target-oriented and structured
  • You enjoy working in the lab
The position
  • We offer excellent working conditions in the interdisciplinary “electrochemical energy systems” EES group with a nice atmosphere
  • Cutting edge equipment for electrolysis and material development
  • Typical duration of a PhD is planned for three years (80% TV-L 13)
  • The working language is English or German
  • Earliest possible start: as soon as possible
  • Familiy friendly, flexible working hours
Contact information

Severin Vierrath

Electrochemical Energy Systems,
IMTEK – Department of Microsystems Engineering,
University of Freiburg,
Georges-Koehler-Allee 103,
79110 Freiburg, Germany

Phone: +49 761 203-54060

Severin.Vierrath@imtek.uni-freiburg.de

Context

Proton exchange membrane water electrolysis is a central technology for the production of green hydrogen. The proton exchange membrane is usually based on perfluorosulfonic acids, as these have a high level of stability. However, membrane materials based on hydrocarbons have the potential to significantly outperform the standard perfluorsulfonic acid materials due to a significantly lower gas permeability. In addition, the synthesis of hydrocarbon membranes does not involve fluorine chemistry, so that the production of this type of membrane is potentially much cheaper and more environmentally friendly than the production of prefluorsulfonic acids. To take advantage of the positive characteristic of hydrocarbon materials the planned project targets to increase the life-time of hydrocarbon based water electrolyzers by simultaneously maintining high performance.

Your task

You will be working on the fabrication of fluorine-free membranes and membrane-electrode-assemblies with the aim to improve the performance and life-time of fluorine-free water electrolyzers. For this purpose, you will fabricate reinforcement materials by electrospinning and integrate them into the membrane. You will characterize the membranes ex-situ e.g. by stress-strain-measurements and in-situ by electrochemical characterisation of the fabricated membrane-electrode-assemblies. For a thorough analysis of thethe materials you will employ furhter methods (e.g. SEM, EDX).

Your profile
  • Excellent communication skills and team spirit are absolutely necessary
  • You are interested in the development of novel materials for a sustainable society
  • You work target-oriented and structured
  • You enjoy working with measurement methods and are interested in the physical relationships
The position
  • We offer excellent working conditions in the interdisciplinary “electrochemical energy systems” EES group with a nice atmosphere
  • Cutting edge equipment for fuel cells and material characterization
  • Typical duration of a PhD is planned for three years (80% TV-L 13)
  • The working language is English or German
  • Earliest possible start: as soon as possible
  • Familiy friendly, flexible working hours
Contact information

Dr. Carolin Klose

Electrochemical Energy Systems,
IMTEK – Department of Microsystems Engineering,
University of Freiburg,
Georges-Koehler-Allee 103,
79110 Freiburg, Germany

Phone: +49 761 203-54062

Carolin.Klose@imtek.uni-freiburg.de

click on the open position to find out more

How to apply

Please send your application via email, ideally with all documents attached as one PDF containing:

  • CV
  • transcript of records (Bachelor, Master)
  • and a short motivational letter
additional information

Freiburg, Germany

Situated in the rhine valley at the edge of the black forest, Freiburg offers a particularly high quality of living with many after-work acitivities. With its location close to Alsace (France), the Swiss Alps and a frequent 2h-train connection to Frankfurt, Freiburg is also very well connected.

We’re looking forward to receiving 🙂