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dc.contributor.author
Schuler, Tobias
dc.contributor.author
Schmidt, Thomas J.
dc.contributor.author
Büchi, Felix N.
dc.date.accessioned
2019-06-05T07:22:56Z
dc.date.available
2019-06-05T02:26:09Z
dc.date.available
2019-06-05T07:22:56Z
dc.date.issued
2019
dc.identifier.issn
0013-4651
dc.identifier.issn
1945-7111
dc.identifier.other
10.1149/2.1241908jes
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/345474
dc.identifier.doi
10.3929/ethz-b-000345474
dc.description.abstract
In the first paper of this series the bulk and surface structural properties of Ti-fiber based porous transport layers (PTL) were characterized and described. In this second part the correlation of structure to the performance in polymer electrolyte water electrolysis cells is analyzed by determination of the three main overpotentials of ohmic, kinetics and mass transport losses. The strongest correlation between the PTL bulk transport properties and cell performance is obtained for heat transport. The current density dependent temperature gradients show good agreement with ex situ determined heat conductivity from part one. However, surface properties of the PTL materials, have a stronger influence on cell performance than the bulk properties. Catalyst layer utilization and ohmic interfacial resistances correlate with the interfacial contact areas reported in part one and performance increases with increasing contact area. This is due to a local mass transport resistance decreasing with increasing catalyst layer utilization.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Electrochemical Society
en_US
dc.rights.uri
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.title
Polymer Electrolyte Water Electrolysis: Correlating Performance and Porous Transport Layer Structure: Part II. Electrochemical Performance Analysis
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
dc.date.published
2019-05-24
ethz.journal.title
Journal of the Electrochemical Society
ethz.journal.volume
166
en_US
ethz.journal.issue
10
en_US
ethz.journal.abbreviated
J. Electrochem. Soc.
ethz.pages.start
F555
en_US
ethz.pages.end
F565
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.publication.place
New York, NY
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2019-06-05T02:26:13Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2019-06-05T07:23:11Z
ethz.rosetta.lastUpdated
2019-06-05T07:23:11Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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