Electrochemical Methods
Our core competence is the utilization, development and optimization of electrochemical analysis methods for solid oxide cells. We study individual processes and degradation mechanisms in fuel cells and electrolyzers using techniques such as impedance spectroscopy, voltage decay analysis, and distribution of relaxation times. In addition, different operation modes such as Co-electrolysis are studied and the effect on electrochemical processes and parameters is evaluated.
Evaluation of Degradation Phenomena by Electrochemical Impedance Spectroscopy in High Temperature Water Electrolysis
By the detailed analysis of electrochemical impedance data degradation phenomena are connected to physical processes in operated solid oxide electrolysis cells. 1
CO2 Electrolysis in High Temperature Solid Oxide Cells
By varying the operating parameters and the performing of electrochemical analysis the individual processes occurring during CO2 electrolysis are investigated 1. . In the next step the knowledge is used for a electrochemical evaluation of degradation phenomena.
Tailoring of Co-Electrolysis for Reactor Coupling
By analysing the processes and outlet gas compositions of a solid oxide electrolysis cell co-electrolysis can be tailored to the needs of downstream reactors, for instance, for the methanol synthesis. 1
Seawater and Wastewater Electrolysis
By identifying the development of individual processes by electrochemical characterization the influence on the stability is evaluated.
Dry Internal Reforming in Solid Oxide Fuel Cells
The operation of a SOFCs fed with CH4/CO2 mixtures as present in biogas is evaluated and individual processes clarified. Safe operation conditions are evaluated by electrochemical methods.
Modelling and Digital Twins
The development of a digital twin is from significant importance to gain understanding of complex systems such as solid oxide cells and can help to accelerated the understanding and development. 1
In the next years further methods for clarification of individual physical processes will be developed and optimized. 2
Contact
Niklas EyckelerDoctoral Researcher & Data Management Officer for the Division of High-Temperature ElectrochemistryBuilding 09.8 / Room 302+49 2461/61-85900
Last Modified: 11.02.2025