This title appears in the Scientific Report :
2017
Please use the identifier:
http://hdl.handle.net/2128/13736 in citations.
Please use the identifier: http://dx.doi.org/10.1016/j.matlet.2016.12.027 in citations.
Novel processing of La0.$_{58}$Sr$_{0.4}$Co$_{0.2}$Fe$_{0.8}$O$_{3−δ}$ cathodes for metal-supported fuel cells
Novel processing of La0.$_{58}$Sr$_{0.4}$Co$_{0.2}$Fe$_{0.8}$O$_{3−δ}$ cathodes for metal-supported fuel cells
Metal-supported solid oxide fuel cells (MSCs) have gained high attention as they offer a possibility to utilize solid oxide fuel cells (SOFCs) in mobile applications such as auxiliary power units in heavy duty vehicles. Cathode reliability is one of the main issues of MSC development, since cathodes...
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Personal Name(s): | Udomsilp, David (Corresponding author) |
---|---|
Roehrens, D. / Menzler, N. H. / Opitz, A. K. / Guillon, Olivier / Bram, M. | |
Contributing Institute: |
JARA-ENERGY; JARA-ENERGY Werkstoffsynthese und Herstellungsverfahren; IEK-1 |
Published in: | Materials letters, 192 (2017) S. 173-176 |
Imprint: |
New York, NY [u.a.]
Elsevier
2017
|
DOI: |
10.1016/j.matlet.2016.12.027 |
Document Type: |
Journal Article |
Research Program: |
Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) Solid Oxide Fuel Cell Fuel Cells |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1016/j.matlet.2016.12.027 in citations.
Metal-supported solid oxide fuel cells (MSCs) have gained high attention as they offer a possibility to utilize solid oxide fuel cells (SOFCs) in mobile applications such as auxiliary power units in heavy duty vehicles. Cathode reliability is one of the main issues of MSC development, since cathodes tend to degrade rapidly after being in-situ activated during onset of the stack operation. In the present study, a novel sintering route for La0.58Sr0.4Co0.2Fe0.8O3-δ (LSCF) cathode material was developed. Sintering of the screen printed cathodes was performed before stack operation at 950 °C in reducing Ar atmosphere for 3 h. Under these conditions, severe oxidation of the metallic substrate and the Ni in the anode was avoided reliably.For proof of concept, phase stability and microstructure of the MSC cathodes were characterized. The results reveal that cathode layers sintered in Ar exhibit substantially improved adherence and mechanical stability compared to conventionally processed MSC cathodes, making them ready for systematic investigation of electrochemical performance. |