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|a 10.1002/adma.202508610
|2 doi
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|a pubmed25n1561.xml
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|a (DE-627)NLM391489038
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|a (NLM)40459467
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|a DE-627
|b ger
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|a eng
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|a Cai, Huizhu
|e verfasserin
|4 aut
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|a Highly Exposed Ultra-Small High-Entropy Sulfides with d-p Orbital Hybridization for Efficient Oxygen Evolution
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|c 2025
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|a Text
|b txt
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 21.08.2025
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2025 Wiley‐VCH GmbH.
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|a Precise regulation of electronic structure and nanoscale geometry represents a transformative strategy for breaking the activity-stability trade-off in oxygen evolution electrocatalysts. Here, highly exposed ultra-small high-entropy sulfides (HES, 5.2 nm) confined in porous carbon nanofibers are designed. This structure involves a dual-engineering synergistic effect combining d-p orbital hybridization and nanoconfinement. X-ray absorption spectroscopy (XAS) and density functional theory (DFT) calculations reveal hybridization between transition metal 3d orbitals and sulfur 3p orbitals. This orbital interaction induces a d-band center shift toward the Fermi level and facilitates interfacial charge redistribution, endowing HES with superior electron-donating capability to accelerate proton-coupled electron transfer kinetics. Such electronic modulation significantly optimizes the adsorption of oxygen evolution reaction (OER) intermediates (*OH, *O, *OOH). Experimentally, the HES demonstrates exceptional OER performance, exhibiting a low overpotential of 200 mV at 10 mA cm-2 and remarkable durability with negligible current decay during 300 h operation across current densities ranging from 10 to 100 mA cm-2. This work establishes a dual optimization strategy leveraging orbital hybridization engineering and size engineering for advanced electrocatalyst design, providing a new design approach in energy conversion technologies
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|a Journal Article
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|a high‐entropy alloys
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4 |
|a high‐entropy sulfides
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4 |
|a orbital hybridization
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| 650 |
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4 |
|a oxygen evolution reaction
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| 650 |
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4 |
|a size engineering
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| 700 |
1 |
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|a He, Sizhen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Hengpan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Huang, Qian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Luo, Fengting
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hu, Qi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Xue
|e verfasserin
|4 aut
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| 700 |
1 |
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|a He, Chuanxin
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 37(2025), 33 vom: 25. Aug., Seite e2508610
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
1 |
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|g volume:37
|g year:2025
|g number:33
|g day:25
|g month:08
|g pages:e2508610
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|u http://dx.doi.org/10.1002/adma.202508610
|3 Volltext
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