Lucy Dittrich


Electrochemical processes of the high temperature co-electrolysis

Schematic presentation of the co-electrolysis.[1] Copyright: FZ Jülich GmbH Schematic presentation of the co-electrolysis.[1]

The co-electrolysis of CO2 and H2O is one possibility to convert electrical in chemical energy. The obtained product is syngas, a mixture of CO and H2. Syngas can be used as starting material for various hydrocarbons including fuels and platform chemicals. The advantage for new sustainable production concepts is that conventional infrastructure for syngas and fuels can be used. Furthermore, the greenhouse gas CO2 can be recycled.

Within the Kopernikus project “Power-to-X”, the aim of this master thesis is to investigate the processes occurring during co-electrolysis via impedance spectroscopy and current/potential-curves (I/V-curves). Beyond that, the influence of reaction parameters (temperature, volume flow, gas composition) will be analyzed, especially with regard to the tailoring of the syngas composition.

[1] S. R. Foit, I. C. Vinke, L. G.J. de Haart, R.-A. Eichel: “Power-to-syngas – An Enabling Technology for the Transition of the Energy System?”, Angew. Chem. Int. Ed., DOI: 10.1002/anie.201607552. Copyright Wiley-VCH Verlag GmbH & Co. KGaA. Reproduced with permission.