TY  - CONF
AU  - Uecker, Jan
AU  - Unachukwu, Ifeanyichukwu Daniel
AU  - Vibhu, Vaibhav
AU  - Vinke, Izaak C.
AU  - Eichel, Rüdiger-A.
AU  - de Haart, L. G. J.
TI  - Electrochemical Activity and Stability of Pure Gadolinium Doped Ceria as Fuel Electrode in Solid Oxide Electrolysis Cells
VL  - 111
IS  - 6
M1  - FZJ-2023-05571
T2  - ECS transactions
SP  - 1785-1793
PY  - 2023
AB  - The utilization of novel fuel electrode materials could be a valid solution to improve the durability of solid oxide electrolysis cells and the path way for worldwide commercialization. Especially, Ni-free fuel electrodes are promising to eliminate Ni migration as an important degradation mechanism. Gadolinium doped ceria (GDC) is an interesting material due to its good stability towards carbon deposition and the possibility to host electrocatalysis in electrolysis conditions. The present study aims to investigate the performance, electrochemical processes and long-term stability of pure GDC fuel electrode single cells. The results show a lower degradation rate in comparison to similar produced Ni-GDC single cells in steam electrolysis conditions and around 70 % of its performance. Furthermore, the charge transfer in the GDC fuel electrode is identified as the reaction rate-determining process in the GDC fuel electrode single cells.
T2  - 18th International Symposium on Solid Oxide Fuel Cells (SOFC-XVIII)
CY  - 28 May 2023 - 2 Jun 2023, Boston (USA)
Y2  - 28 May 2023 - 2 Jun 2023
M2  - Boston, USA
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
DO  - DOI:10.1149/11106.1785ecst
UR  - https://juser.fz-juelich.de/record/1019740
ER  -