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dc.contributor.author
Fikry, Meriem
dc.contributor.author
Weiss, Nelli
dc.contributor.author
Bozzetti, Michele
dc.contributor.author
Ünsal, Seçil
dc.contributor.author
Georgi, Maximilian
dc.contributor.author
Khavlyuk, Pavel
dc.contributor.author
Herranz, Juan
dc.contributor.author
Tileli, Vasiliki
dc.contributor.author
Eychmüller, Alexander
dc.contributor.author
Schmidt, Thomas J.
dc.date.accessioned
2024-02-26T10:06:22Z
dc.date.available
2024-02-24T08:51:14Z
dc.date.available
2024-02-26T10:06:22Z
dc.date.issued
2024-02-12
dc.identifier.issn
2574-0962
dc.identifier.other
10.1021/acsaem.3c01930
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/661330
dc.description.abstract
High activity and durability are two key requirements for the successful development of Pt-based ORR catalyst layers for polymer electrolyte fuel cell (PEFC) cathodes. Unsupported Pt-Ni aerogels consisting of an interconnected nanoparticle network have been shown to fulfill these two requirements, but in our previous work, their processing into high-performing catalyst layers (CLs) required the inclusion of a pore inducer and the preparation of catalyst-coated membranes (CCMs) through hand spraying. Since the results of the latter approach are highly dependent on the operator and therefore prone to irreproducibility, in this work, we attempted to use an automated spray coating machine to reproducibly manufacture aerogel CCMs. This required scaling up the aerogel synthesis (yielding 5-fold more material than in previous works), which was shown to yield a material with physicochemical properties similar to those of the aerogels made through the standard approach. Most importantly, the subsequent optimization of the catalyst ink formulation and processing methods resulted in homogeneous and high-performance CLs without the use of a pore inducer. Thus, this work represents an important step toward the up-scaling of such materials' synthesis in the (multi)gram scale and their subsequent implementation in real devices.
en_US
dc.language.iso
en
en_US
dc.publisher
American Chemical Society
en_US
dc.subject
Up-scale
en_US
dc.subject
synthesis
en_US
dc.subject
carbon free
en_US
dc.subject
Pt alloys
en_US
dc.subject
fuel cells
en_US
dc.subject
cathode
en_US
dc.subject
aerogels
en_US
dc.title
Up-Scaled Preparation of Pt-Ni Aerogel Catalyst Layers for Polymer Electrolyte Fuel Cell Cathodes
en_US
dc.type
Journal Article
dc.date.published
2024-01-11
ethz.journal.title
ACS Applied Energy Materials
ethz.journal.volume
7
en_US
ethz.journal.issue
3
en_US
ethz.journal.abbreviated
ACS Appl. Energy Mater.
ethz.pages.start
896
en_US
ethz.pages.end
905
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.status
published
en_US
ethz.date.deposited
2024-02-24T08:51:17Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2024-02-26T10:06:23Z
ethz.rosetta.lastUpdated
2024-02-26T10:06:23Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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