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240529s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202404319
|2 doi
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|a pubmed24n1488.xml
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|a (DE-627)NLM372944329
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|a (NLM)38806164
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|a DE-627
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|a eng
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| 100 |
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|a Sun, Zongqiang
|e verfasserin
|4 aut
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|a Constructing an Interlaced Catalytic Surface via Fluorine-Doped Bimetallic Oxides for Oxygen Electrode Processes in Li-O2 Batteries
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 01.08.2024
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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 Lithium-oxygen (Li-O2) batteries, renowned for their high theoretical energy density, have garnered significant interest as prime candidates for future electric device development. However, their actual capacity is often unsatisfactory due to the passivation of active sites by solid-phase discharge products. Optimizing the growth and storage of these products is a crucial step in advancing Li-O2 batteries. Here, a fluorine-doped bimetallic cobalt-nickel oxide (CoNiO2- xFx/CC) with an interlaced catalytic surface (ICS) and a corncob-like structure is proposed as an oxygen electrode. Unlike conventional oxide electrodes with a "single adsorption catalytic mechanism," the ICS of CoNiO2- xFx/CC offers a "competitive adsorption catalytic mechanism," where oxygen sites facilitate oxygen conversion while fluorine sites contribute to the growth of Li2O2. This results in a change in Li2O2 morphology from a surface film to toroidal particles, effectively preventing the burial of active sites. Additionally, the unique open architecture aids in the capture and release of oxygen and the formation of well-contacted Li2O2/electrode interfaces, which benefits the complete decomposition of Li2O2 products. Consequently, the Li-O2 battery with a CoNiO2- xFx/CC cathode demonstrates a high specific capacity of up to 30923 mAh g-1 and a lifespan exceeding 580 cycles, surpassing most reported metal oxide-based cathodes
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4 |
|a Journal Article
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|a Li2O2 growth mechanism
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4 |
|a Li2O2 storage
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4 |
|a catalytic design
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| 650 |
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4 |
|a oxygen catalysts
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| 650 |
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4 |
|a structural design
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| 700 |
1 |
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|a Lin, Xiaodong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Chutao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tan, Yanyan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dou, Wenjie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hu, Ajuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cui, Jiaqing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fan, Jingmin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yuan, Ruming
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zheng, Mingsen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dong, Quanfeng
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 31 vom: 01. Aug., Seite e2404319
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:36
|g year:2024
|g number:31
|g day:01
|g month:08
|g pages:e2404319
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202404319
|3 Volltext
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