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Online seit 2025-08-18

PhD Student (f-m-d) for Electrochemical Reduction of Oxidized Nitrogen Species

Bewerbungsfrist
Application until
2025-09-30
Beginn
Start of work
As soon as possible
Umfang
Scope of work
39 h


The Department of Process Systems Engineering (Director: Prof. Dr.-Ing. Kai Sundmacher) at the Max Planck Institute for Dynamics of Complex Technical Systems is inviting applications for the PhD Student (f/m/d) position.

Research topic: “Electrochemical reduction of oxidized nitrogen species” 

The position is to be filled as soon as possible and is limited to three years.

The research topic contributes to the concept of a sustainable circular economy. Human activities have disturbed the global nitrogen (N-) cycle, due to a mismatch between the atmospheric N2 fixation and denitrification rates. Fixed-N-species accumulate by the energy-intensive Haber-Bosch process, industrial and transportation combustion processes, over-cultivation of crops that promote the biological N2 fixation, and over-fertilization practices. However, reactive N-forms are essential to sustain the global food supply of a steadily growing human population. It is thus imperative to deploy efficient recycling concepts of already fixed-N compounds, supplementing with N2-fixation strategies to compensate for conversions back to unreactive N2, thus balancing the N-cycle.

Ammonia (NH3), a nitrogen-hydrogen compound that is widely used in agriculture and industry, is not only a compelling candidate for storing and distributing H2, but also a potential fuel and a valuable chemical. On the aforementioned ground, recycling oxidized N-forms back to NH3 with the use of green electrons and water can contribute to fixed-N recycling concepts and inhibit the accumulation of reactive-N-species in the ecosystem. Meanwhile, the increasing availability of renewable electricity renders its direct usage via electrocatalytic processes attractive in the context of power-to-X circular scenarios.

Your Tasks

  • Electrochemical and analytical experimental methods, with focus on the relations between reactions’ activity/selectivity and catalyst structures, reaction environment and reactor designs
  • Simulations of reaction schemes and transport phenomena to understand the reaction mechanisms and stir the selectivity towards hydrogenated N-forms, while suppressing the formation of undesirable products
  • Detailed modelling, simulation and optimization of an electrochemical reactor, e.g. in Matlab and/or Python

Suitable candidates

  • hold a master's degree in the engineering or natural sciences, preferentially in chemical or process engineering, physics, chemistry or related disciplines with grades above average,
  • have strong interest in combining theoretical and experimental work for reaction engineering and chemical analysis,
  • have strong communication skills and motivation for the cooperation with colleagues
  • have a very good knowledge of English

Knowledge and experience in chemical engineering laboratory work as well as model-based simulations are advantageous. 

We offer:

  • Job with a fixed-term employment contract for three years in the public sector
  • Salary Class 100% E13
  • Structured and established staff development program
  • Versatile and varied activities in a scientific environment
  • Compatibility of family, career and caring for relatives through flexible working hours and appropriate conditions
  • Health-promoting and health-maintaining measures as part of our occupational health management