TY  - JOUR
AU  - Foit, Severin
AU  - Dittrich, Lucy
AU  - Duyster, Tobias
AU  - Vinke, Izaak C.
AU  - Eichel, Rüdiger-A.
AU  - de Haart, L. G. J.
TI  - Direct Solid Oxide Electrolysis of Carbon Dioxide: Analysis of Performance and Processes
JO  - Processes
VL  - 8
IS  - 11
SN  - 2227-9717
CY  - Basel
PB  - MDPI
M1  - FZJ-2020-04245
SP  - 1390 -
PY  - 2020
AB  - Chemical industries rely heavily on fossil resources for the production of carbon-based chemicals. A possible transformation towards sustainability is the usage of carbon dioxide as a source of carbon. Carbon dioxide is activated for follow-up reactions by its conversion to carbon monoxide. This can be accomplished by electrochemical reduction in solid oxide cells. In this work, we investigate the process performance of the direct high-temperature CO$_2$ electrolysis by current-voltage characteristics (iV) and Electrochemical Impedance Spectroscopy (EIS) experiments. Variations of the operation parameters temperature, load, fuel utilization, feed gas ratio and flow rate show the versatility of the procedure with maintaining high current densities of 0.75 up to 1.5 A·cm$^{−2}$, therefore resulting in high conversion rates. The potential of the high-temperature carbon dioxide electrolysis as a suitable enabler for the activation of CO$_2$ as a chemical feedstock is therefore appointed and shown.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000594339500001
DO  - DOI:10.3390/pr8111390
UR  - https://juser.fz-juelich.de/record/886058
ER  -