This title appears in the Scientific Report :
2023
Please use the identifier:
http://dx.doi.org/10.1149/11106.1785ecst in citations.
Electrochemical Activity and Stability of Pure Gadolinium Doped Ceria as Fuel Electrode in Solid Oxide Electrolysis Cells
Electrochemical Activity and Stability of Pure Gadolinium Doped Ceria as Fuel Electrode in Solid Oxide Electrolysis Cells
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....
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Personal Name(s): | Uecker, Jan (Corresponding author) |
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Unachukwu, Ifeanyichukwu Daniel / Vibhu, Vaibhav / Vinke, Izaak C. / Eichel, Rüdiger-A. / de Haart, L. G. J. | |
Contributing Institute: |
Grundlagen der Elektrochemie; IEK-9 |
Published in: | 111 (2023) 6, S. 1785-1793 |
Imprint: |
2023
|
Physical Description: |
1785-1793 |
DOI: |
10.1149/11106.1785ecst |
Conference: | 18th International Symposium on Solid Oxide Fuel Cells (SOFC-XVIII), Boston (USA), 2023-05-28 - 2023-06-02 |
Document Type: |
Contribution to a book Contribution to a conference proceedings |
Research Program: |
Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) Power-based Fuels and Chemicals |
Series Title: |
ECS transactions
|
Publikationsportal JuSER |
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. |