This title appears in the Scientific Report :
2020
Please use the identifier:
http://dx.doi.org/10.1016/j.jpowsour.2020.227811 in citations.
Please use the identifier: http://hdl.handle.net/2128/24512 in citations.
Selection of cathode materials for forsterite-supported solid oxide fuel cells – Part II: Electro-catalytic activity
Selection of cathode materials for forsterite-supported solid oxide fuel cells – Part II: Electro-catalytic activity
Based on the interactions and the formation of secondary phases of various SOFC cathode materials if they are processed with the restrictions of an inert-supported cell utilizing forsterite as support material (described in Part I), impedance measurements and cell tests were performed to clarify the...
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Personal Name(s): | Grimm, Fabian (Corresponding author) |
---|---|
Neubert, Michael / Karl, Jürgen / Menzler, Norbert H. / Guillon, Olivier | |
Contributing Institute: |
Werkstoffsynthese und Herstellungsverfahren; IEK-1 |
Published in: | Journal of power sources, 451 (2020) S. 227811 - |
Imprint: |
New York, NY [u.a.]
Elsevier
2020
|
DOI: |
10.1016/j.jpowsour.2020.227811 |
Document Type: |
Journal Article |
Research Program: |
Solid Oxide Fuel Cell Fuel Cells |
Link: |
Published on 2020-02-07. Available in OpenAccess from 2022-02-07. Published on 2020-02-07. Available in OpenAccess from 2022-02-07. |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/24512 in citations.
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520 | |a Based on the interactions and the formation of secondary phases of various SOFC cathode materials if they are processed with the restrictions of an inert-supported cell utilizing forsterite as support material (described in Part I), impedance measurements and cell tests were performed to clarify the impact of the described interactions on the material combinations electrocatalytic performance.Subsequently Part II focusses on the preselection of a cathode material displaying a higher catalytic activity compared to the currently used LSM/8YSZ cathode of the inert-supported cell concept. In order to do so symmetrical cells, mimicking the processing, were fabricated by co-firing various cathodes (La0.58Sr0.4Co0.2Fe0.8O3; Pr0.58Sr0.4Co0.2Fe0.8O3; La0.58Sr0.4CoO3; La0.58Sr0.4FeO3; La0.58Ca0.4Co0.2Fe0.8O3; (La0.8Sr0.2)0.95Fe0.2Mn0.8O3; (La0.9Sr0.1)0.95Fe0.7Mn0.3O3) together with an La0.65Sr0.3MnO3 current collector layer (CCL) or with one LSM CCL containing 20 wt% of forsterite.The results indicate that the catalytic activity of the cathodes cannot simply be related to the number or amount of secondary phases formed during the co-firing if forsterite is present or not as LSF, which displayed the formation of numerous secondary phases (Part I), exhibits the best catalytic activity. The following ascending order of catalytic activity was obtained: LSF (0.25 Ωcm2) > LSM/8YSZ > PSCF > LSFM > LSCF > LCCF > LSC (77.43 Ωcm2). | ||
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