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The aim of this research is to understand the degradation and lifetime fundamentals of the high (700–900 oC) temperature H2O electrolysis and to a certain extent for the H2O/CO2 co-electrolysis. The project is focusing on both of the Solid Oxide Electrolysis Cell (SOEC) electrodes, for minimization of their degradation and improvement of their performance and stability mainly under high temperature H2O electrolysis for the production of H2 and to a certain extent under H2O/CO2 co- electrolysis conditions for the production of syngas (H2 and CO).

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Scientific Concept

The problem

Global electricity production is mainly based on fossil fuels, leading to significant rise of atmospheric CO2 concentrations and depletion of carbon-based energy resources.

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S & T challenges

⚈ Development of efficient, durable fuel (cathode) electrodes, tolerant to degradation (e.g. re-oxidation and carbon deposition) for their use in H2O and H2O/CO2 applications.

⚈ Development of durable SOEC air (anode) electrodes by applying new materials.

⚈ Advanced (in-situ and ex-situ) physicochemical and complete electrochemical characterization of electrocatalysts and SOEC assemblies.

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Prime Objectives

⚈ Improvement/development of new more efficient cathodes (H2O electrode) and anodes (air/O2 electrode) primarily for the reaction of H2O electrolysis and in a certain extent for H2O/CO2 co-electrolysis.

⚈ Understanding the reaction mechanisms and processes that cause degradation on both SOEC electrodes, by combining experiments with theoretical modeling over an extended range of operating conditions.

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⚈ 5 different countries.

⚈ 4 Research Centers, 1 University and 2 High-tech SMEs.


FCH2-JU logo EU emblem This project has received funding from the Fuel Cells and Hydrogen 2 Joint Undertaking under grant agreement No 671481. This Joint Undertaking receives support from the European Union’s Horizon 2020 research and innovation programme.