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dc.contributor.author
Buergler, Brandon E.
dc.contributor.author
Ochsner, Mirjam
dc.contributor.author
Vuillemin, Sibylle E.
dc.contributor.author
Gauckler, Ludwig J.
dc.date.accessioned
2021-07-30T13:27:43Z
dc.date.available
2017-06-08T17:28:15Z
dc.date.available
2021-07-30T13:27:43Z
dc.date.issued
2007-09-27
dc.identifier.issn
0378-7753
dc.identifier.issn
1873-2755
dc.identifier.other
10.1016/j.jpowsour.2007.06.204
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/6583
dc.description.abstract
Single chamber solid oxide fuel cells (SC-SOFCs) with interdigitating electrodes were prepared and operated in CH4/air mixtures. Both electrodes (Ni-Ce0.8Gd0.2O1.9 cermet and Sm0.5Sr0.5CoO3−δ perovskite) were placed on the same side of a Ce0.8Gd0.1O1.95 electrolyte disc. The separating gap between the electrodes was varied from 1.2 to 0.27 mm and finally down to 10 μm. Screen-printing was used for the preparation of the cells with a gap in the millimetre range, whereas micromolding in capillaries (MIMIC) was used for the preparation of the micro-SC-SOFCs. The prepared micro-SC-SOFCs consisted of an array of 19 individual cells that were connected in parallel having 100 μm wide electrodes. An open circuit voltage of 0.65–0.75 V was measured in flowing mixtures of methane and air. The maximum power density of 17 mW cm−2 was limited by the ohmic resistance of the long conduction paths along the thin electrodes to the active sites of the individual cells. The feasibility of the micro-cell was demonstrated by comparing the performance with the performance of the cells having feature sizes in the millimetre range. The cell resistance of micro-SC-SOFCs may be significantly reduced when connecting the cells in series using interconnections between anode and cathodes of adjacent cells.
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.subject
Ceramic materials
en_US
dc.subject
Single chamber
en_US
dc.subject
Solid oxide fuel cell
en_US
dc.subject
Micromolding in capillaries
en_US
dc.subject
Micro-cell
en_US
dc.title
From macro- to micro-single chamber solid oxide fuel cells
en_US
dc.type
Journal Article
dc.date.published
2007-06-30
ethz.journal.title
Journal of Power Sources
ethz.journal.volume
171
en_US
ethz.journal.issue
2
en_US
ethz.journal.abbreviated
J. power sources
ethz.pages.start
310
en_US
ethz.pages.end
320
en_US
ethz.identifier.wos
ethz.publication.place
Amsterdam
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
03270 - Gauckler, Ludwig J.
en_US
ethz.leitzahl.certified
03270 - Gauckler, Ludwig J.
ethz.date.deposited
2017-06-08T17:28:40Z
ethz.source
ECIT
ethz.identifier.importid
imp59364ba4241a381851
ethz.ecitpid
pub:17019
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2017-07-14T23:05:05Z
ethz.rosetta.lastUpdated
2022-03-29T10:50:38Z
ethz.rosetta.versionExported
true
ethz.COinS
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