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|a 10.1002/adma.202210975
|2 doi
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|a pubmed24n1190.xml
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|a (DE-627)NLM357025679
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|a (NLM)37200014
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|a DE-627
|b ger
|c DE-627
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|a eng
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|a Yan, Xiaoxiao
|e verfasserin
|4 aut
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|a Atomically Dispersed Co2 MnN8 Triatomic Sites Anchored in N-Doped Carbon Enabling Efficient Oxygen Reduction Reaction
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|c 2023
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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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|2 rdacarrier
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|a Date Revised 20.10.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley-VCH GmbH.
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|a Atomically dispersed transition metal-nitrogen/carbon (M-N/C) catalysts have emerged as the most promising substitutes to the precious platinum counterparts toward the oxygen reduction reaction (ORR). However, the reported M-N/C catalysts are usually in the form of common M-N4 moieties with only a single metal active site, and they suffer from insufficient activity. Herein, an unusual trinuclear active structure is elaborately developed with a nitrogen-coordinated single Mn atom adjacent to two Co atoms (Co2 MnN8 ) anchored in N-doped carbon as a highly efficient ORR catalyst via adsorption-pyrolysis of a bimetallic zeolitic imidazolate framework precursor. Atomic structural investigations and density functional theory (DFT) calculations reveal that Co2 MnN8 would experience a spontaneous OH binding to form Co2 MnN8 -2OH as the real active site, leading to a single electron-filled state in the d z 2 ${\mathrm{d}}_{{z}^{2}}$ orbital and an optimized binding energy of intermediates. Accordingly, the as-developed Co2 MnN8 /C exhibits an unprecedented ORR activity with a high half-wave potential of 0.912 V and outstanding stability, not only surpassing the Pt/C catalyst but also representing a new record for the Co-based catalyst
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|a Journal Article
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|a Co2MnN8
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|a electrocatalysts
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|a half-filled
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|a oxygen reduction reaction
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|a trinuclear structures
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|a Liu, Da
|e verfasserin
|4 aut
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|a Guo, Peifang
|e verfasserin
|4 aut
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|a He, Yufei
|e verfasserin
|4 aut
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|a Wang, Xinqiang
|e verfasserin
|4 aut
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|a Li, Zhenglong
|e verfasserin
|4 aut
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|a Pan, Hongge
|e verfasserin
|4 aut
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|a Sun, Dalin
|e verfasserin
|4 aut
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|a Fang, Fang
|e verfasserin
|4 aut
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|a Wu, Renbing
|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), 42 vom: 05. Okt., Seite e2210975
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g volume:35
|g year:2023
|g number:42
|g day:05
|g month:10
|g pages:e2210975
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|u http://dx.doi.org/10.1002/adma.202210975
|3 Volltext
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