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241223s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202410295
|2 doi
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|a pubmed24n1640.xml
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|a (DE-627)NLM381999556
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|a (NLM)39713949
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Li, Xiumin
|e verfasserin
|4 aut
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|a Amorphous High-entropy Phosphide Nanosheets With Multi-atom Catalytic Sites for Efficient Oxygen Evolution
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 23.12.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2024 Wiley‐VCH GmbH.
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|a The alkaline oxygen evolution reaction (OER) mainly encompasses four elementary reactions, involving intermediates such as HO*, O*, and HOO*. Balancing the Gibbs free energies of these intermediates at a single active site is a challenging task. In this work, a high-entropy metal-organic framework incorporating Fe, Ni, Co, Cu, and Y metal elements is synthesized using an electrodeposition method, which then serves as a template for preparing a high-entropy phosphide/carbon (FeCoNiCuYP/C) composite. Notably, the obtained composite exhibits an amorphous structure with multiple catalytically active sites. Combined theoretical calculations and experimental measurements reveal the critical roles of Co/Ni and Fe atoms in tuning the electronic structure of FeCoNiCuYP and optimizing the binding strength of intermediates. Furthermore, Fe and Ni/Co sites prefer to stabilize the HO* and HOO* intermediates respectively, conducive to breaking their scaling relation of Gibbs free energy during OER. Owing to its fine-tuned composition and the synergistic effect of multiple active sites, the FeCoNiCuYP/C electrocatalyst demonstrates superior OER performance in alkaline solutions, requiring a mere 316 mV overpotential to yield 100 mA cm-2 current density with excellent stability. This work provides an innovative route to design efficient high-entropy electrocatalysts, holding significant promise for cutting-edge electrocatalytic applications
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|a Journal Article
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|a amorphous structures
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|a electro‐depositions
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|a high‐entropy phosphides
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|a multiple active sites
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|a oxygen evolution reactions
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|a Xie, Zhengkun
|e verfasserin
|4 aut
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|a Roy, Soumyabrata
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gao, Longqing
|e verfasserin
|4 aut
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|a Liu, Jie
|e verfasserin
|4 aut
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|a Zhao, Bing
|e verfasserin
|4 aut
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|a Wei, Ran
|e verfasserin
|4 aut
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|a Tang, Bijun
|e verfasserin
|4 aut
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|a Wang, Hongyan
|e verfasserin
|4 aut
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|a Ajayan, Pulickel
|e verfasserin
|4 aut
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| 700 |
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|a Tang, Keyong
|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 (2024) vom: 23. Dez., Seite e2410295
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g year:2024
|g day:23
|g month:12
|g pages:e2410295
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|u http://dx.doi.org/10.1002/adma.202410295
|3 Volltext
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