<div class="csl-bib-body">
<div class="csl-entry">Baumann, F. S., Maier, J., & Fleig, J. (2008). The polarization resistance of mixed conducting SOFC cathodes: A comparative study using thin film model electrodes. <i>Solid State Ionics</i>, <i>179</i>(21–26), 1198–1204. https://doi.org/10.1016/j.ssi.2008.02.059</div>
</div>
-
dc.identifier.issn
0167-2738
-
dc.identifier.uri
http://hdl.handle.net/20.500.12708/170199
-
dc.description.abstract
The oxygen reduction reaction on YSZ solid electrolytes is investigated by means of thin film microelectrodes employing perovskite-type mixed conductors such as La0.6Sr0.4Co0.8Fe0.2O3 − δ, Ba0.5Sr0.5Co0.8Fe0.2O3 − δ and Sm0.5Sr0.5CoO3 − δ as electrode materials. Owing to the simple geometry of the circular microelectrodes direct comparison of electrochemical material parameters is possible and reveals that the Fe/Co ratio in La0.6Sr0.4Co1 − xFexO3 − δ has only little effect on the resistance associated with the surface oxygen exchange. Ba0.5Sr0.5Co0.8Fe0.2O3 − δ thin films exhibit very low surface-related polarization resistances. Strongly decreased resistances can also be observed in Co-rich La0.6Sr0.4Co1 − xFexO3 − δ electrodes after a cathodic voltage pulse treatment of several tens of seconds. Area-related surface resistances below 0.1 Ωcm2 at 700 °C can be achieved by such activation. Further phenomena associated with this voltage activation are discussed.
en
dc.language.iso
en
-
dc.publisher
ELSEVIER
-
dc.relation.ispartof
Solid State Ionics
-
dc.subject
Condensed Matter Physics
-
dc.subject
General Materials Science
-
dc.subject
General Chemistry
-
dc.title
The polarization resistance of mixed conducting SOFC cathodes: A comparative study using thin film model electrodes
en
dc.type
Artikel
de
dc.type
Article
en
dc.description.startpage
1198
-
dc.description.endpage
1204
-
dc.type.category
Original Research Article
-
tuw.container.volume
179
-
tuw.container.issue
21-26
-
tuw.journal.peerreviewed
true
-
tuw.peerreviewed
true
-
tuw.researchTopic.id
E3
-
tuw.researchTopic.id
M8
-
tuw.researchTopic.id
M4
-
tuw.researchTopic.id
M1
-
tuw.researchTopic.name
Climate Neutral, Renewable and Conventional Energy Supply Systems