Performance and Processes of Pure CO2 Electrolysis in Solid Oxide Cells

ECS Transactions, vol. 103, pp. 501–509

Abstract

Pure carbon dioxide (CO2) electrolysis presents a sustainable method for the production of carbon monoxide (CO). CO is an important feedstock for producing base chemicals for the chemical industry. High-temperature CO2 electrolysis in solid oxide electrolysis cells (SOECs) make it possible to recycle climate-damaging CO2 and utilize renewable energy sources for the conversion to CO. We thoroughly investigated the direct CO2 electrolysis electrochemically with respect to the process parameters temperature, fuel utilization, load, flow rates, and CO2:CO feed gas ratio. With faradaic efficiencies of about 100% and high current densities of up to 1.5 A∙cm,-2 the results show the high potential of pure CO2 electrolysis.

Authors 6

1. Lucy Dittrich Aachen

   Forschungszentrum Jülich · RWTH Aachen University

   Affiliation as printed

   Forschungszentrum Jülich GmbH

   RWTH Aachen University

2. Tobias Duyster

   Forschungszentrum Jülich

   Affiliation as printed

   Forschungszentrum Jülich GmbH

3. Severin Robert Foit

   Forschungszentrum Jülich

   Affiliation as printed

   Forschungszentrum Jülich GmbH

4. Izaak C. Vinke

   Forschungszentrum Jülich

   Affiliation as printed

   Forschungszentrum Jülich GmbH

5. Rüdiger‐A. Eichel Aachen Institute of Physical Chemistry

   Forschungszentrum Jülich · RWTH Aachen University

   Affiliation as printed

   Forschungszentrum Jülich GmbH

   Institute of Physical Chemistry, RWTH Aachen University

6. Lambertus G. J. de Haart

   Forschungszentrum Jülich

   Affiliation as printed

   Forschungszentrum Jülich GmbH