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|a 10.1002/adma.202308243
|2 doi
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|a pubmed25n1219.xml
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|a (DE-627)NLM36593657X
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|a (NLM)38102967
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Zhao, Yilin
|e verfasserin
|4 aut
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|a Vacancy Defects Inductive Effect of Asymmetrically Coordinated Single-Atom Fe─N3 S1 Active Sites for Robust Electrocatalytic Oxygen Reduction with High Turnover Frequency and Mass Activity
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|c 2024
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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 14.03.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley-VCH GmbH.
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|a The development of facile, efficient synthesis method to construct low-cost and high-performance single-atom catalysts (SACs) for oxygen reduction reaction (ORR) is extremely important, yet still challenging. Herein, an atomically dispersed N, S co-doped carbon with abundant vacancy defects (NSC-vd) anchored Fe single atoms (SAs) is reported and a vacancy defects inductive effect is proposed for promoting electrocatalytic ORR. The optimized catalyst featured of stable Fe─N3 S1 active sites exhibits excellent ORR activity with high turnover frequency and mass activity. In situ Raman, attenuated total reflectance surface enhanced infrared absorption spectroscopy reveal the Fe─N3 S1 active sites exhibit different kinetic mechanisms in acidic and alkaline solutions. Operando X-ray absorption spectra reveal the ORR activity of Fe SAs/NSC-vd catalyst in different electrolyte is closely related to the coordination structure. Theoretical calculation reveals the upshifted d band center of Fe─N3 S1 active sites facilitates the adsorption of O2 and accelerates the kinetics process of *OH reduction. The abundant vacancy defects around the Fe─N3 S1 active sites balance the OOH* formation and *OH reduction, thus synergetically promoting the electrocatalytic ORR process
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|a Journal Article
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|a controllable synthesis
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|a electrocatalysis
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|a oxygen reduction reaction
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|a single-atom catalyst
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|a Chen, Hsiao-Chien
|e verfasserin
|4 aut
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|a Ma, Xuelu
|e verfasserin
|4 aut
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|a Li, Jiaye
|e verfasserin
|4 aut
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|a Yuan, Qing
|e verfasserin
|4 aut
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|a Zhang, Peng
|e verfasserin
|4 aut
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|a Wang, Minmin
|e verfasserin
|4 aut
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|a Li, Junxi
|e verfasserin
|4 aut
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|a Li, Min
|e verfasserin
|4 aut
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|a Wang, Shifu
|e verfasserin
|4 aut
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|a Guo, Han
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|4 aut
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|a Hu, Ruanbo
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|4 aut
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|a Tu, Kun-Hua
|e verfasserin
|4 aut
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|a Zhu, Wei
|e verfasserin
|4 aut
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|a Li, Xuning
|e verfasserin
|4 aut
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|a Yang, Xuan
|e verfasserin
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|a Pan, Yuan
|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), 11 vom: 01. März, Seite e2308243
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
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|g volume:36
|g year:2024
|g number:11
|g day:01
|g month:03
|g pages:e2308243
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|u http://dx.doi.org/10.1002/adma.202308243
|3 Volltext
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