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241010s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202412978
|2 doi
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|a pubmed24n1612.xml
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|a (DE-627)NLM378721429
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|a (NLM)39385614
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|a eng
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|a Du, Meng
|e verfasserin
|4 aut
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|a Dual Fe/I Single-Atom Electrocatalyst for High-Performance Oxygen Reduction and Wide-Temperature Quasi-Solid-State Zn-Air Batteries
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|c 2024
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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 Revised 25.11.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a Oxygen reduction reaction (ORR) electrocatalysts are essential for widespread application of quasi-solid-state Zn-air batteries (ZABs), but the well-known Fe-N-C single-atom catalysts (SACs) suffer from low activity and stability because of unfavorable strong adsorption of oxygenated intermediates. Herein, the study synthesizes dual Fe/I single atoms anchored on N-doped carbon nanorods (Fe/I-N-CR) via a metal-organic framework (MOF)-mediated two-step tandem-pyrolysis method. Atomic-level I doping modulates the electronic structure of Fe-Nx centers via the long-range electron delocalization effect. Benefitting from the synergistic effect of dual Fe/I single-atom sites and the structural merits of 1D nanorods, the Fe/I-N-CR catalyst shows excellent ORR activity and stability, superior to Pt/C and Fe or I SACs. When the Fe/I-N-CR is employed as cathode for quasi-solid-state ZABs, a high power density of 197.9 mW cm-2 and an ultralong cycling lifespan of 280 h at 20 mA cm-2 are both achieved, greatly exceeding those of commercial Pt/C+IrO2 (119.1 mW cm-2 and 47 h). In addition, wide-temperature adaptability and superior stability from -40 to 60 °C are realized for the Fe/I-N-CR-based quasi-solid-state ZABs. This work provides a MOF-mediated two-step tandem-pyrolysis strategy to engineer high-performance dual SACs with metal/nonmetal centers for ORR and sustainable ZABs
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|a Journal Article
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|a dual Fe/I single atoms
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|a oxygen reduction reaction
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|a quasi‐solid‐state Zn‐air batteries
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|a wide‐temperature adaptability
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|a Chu, Bingxian
|e verfasserin
|4 aut
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|a Wang, Qichen
|e verfasserin
|4 aut
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|a Li, Cheng
|e verfasserin
|4 aut
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|a Lu, Yu
|e verfasserin
|4 aut
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|a Zhang, Zhan
|e verfasserin
|4 aut
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|a Xiao, Xin
|e verfasserin
|4 aut
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|a Xu, Cong-Qiao
|e verfasserin
|4 aut
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1 |
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|a Gu, Meng
|e verfasserin
|4 aut
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1 |
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|a Li, Jun
|e verfasserin
|4 aut
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|a Pang, Huan
|e verfasserin
|4 aut
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|a Xu, Qiang
|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 36(2024), 47 vom: 09. Nov., Seite e2412978
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:36
|g year:2024
|g number:47
|g day:09
|g month:11
|g pages:e2412978
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|u http://dx.doi.org/10.1002/adma.202412978
|3 Volltext
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