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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202207635
|2 doi
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|a pubmed24n1168.xml
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|a DE-627
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|e rakwb
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|a eng
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|a Banko, Lars
|e verfasserin
|4 aut
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| 245 |
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|a Microscale Combinatorial Libraries for the Discovery of High-Entropy Materials
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 02.03.2023
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|a Date Revised 02.03.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.
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|a Polyelemental material systems, specifically high-entropy alloys, promise unprecedented properties. Due to almost unlimited combinatorial possibilities, their exploration and exploitation is hard. This challenge is addressed by co-sputtering combined with shadow masking to produce a multitude of microscale combinatorial libraries in one deposition process. These thin-film composition spreads on the microscale cover unprecedented compositional ranges of high-entropy alloy systems and enable high-throughput characterization of thousands of compositions for electrocatalytic energy conversion reactions using nanoscale scanning electrochemical cell microscopy. The exemplary exploration of the composition space of two high-entropy alloy systems provides electrocatalytic activity maps for hydrogen evolution and oxygen evolution as well as oxygen reduction reactions. Activity optima in the system Ru-Rh-Pd-Ir-Pt are identified, and active noble-metal lean compositions in the system Co-Ni-Mo-Pd-Pt are discovered. This illustrates that the proposed microlibraries are a holistic discovery platform to master the multidimensionality challenge of polyelemental systems
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|a Journal Article
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|a combinatorial electrocatalyst discovery
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|a composition space
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|a electrocatalysis
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|a high-entropy materials
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|a microlibraries
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|a Tetteh, Emmanuel Batsa
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kostka, Aleksander
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Piotrowiak, Tobias Horst
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Krysiak, Olga Anna
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hagemann, Ulrich
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Andronescu, Corina
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Schuhmann, Wolfgang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ludwig, Alfred
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 35(2023), 9 vom: 21. März, Seite e2207635
|w (DE-627)NLM098206397
|x 1521-4095
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|g volume:35
|g year:2023
|g number:9
|g day:21
|g month:03
|g pages:e2207635
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|u http://dx.doi.org/10.1002/adma.202207635
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