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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202208873
|2 doi
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|a pubmed24n1162.xml
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|a (DE-627)NLM348804938
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|a (NLM)36366906
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Jiang, Yu
|e verfasserin
|4 aut
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| 245 |
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|a Single-Atom Vanadium Catalyst Boosting Reaction Kinetics of Polysulfides in Na-S Batteries
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|c 2023
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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 Completed 24.02.2023
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|a Date Revised 24.02.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Wiley-VCH GmbH.
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|a The practical application of the room-temperature sodium-sulfur (RT Na-S) batteries is hindered by the insulated sulfur, the severe shuttle effect of sodium polysulfides, and insufficient polysulfide conversion. Herein, on the basis of first principles calculations, single-atom vanadium anchored on a 3D nitrogen-doped hierarchical porous carbon matrix (denoted as 3D-PNCV) is designed and fabricated to enhance sulfur reactivity, and adsorption and catalytic conversion performance of sodium polysulfide. The 3D-PNCV host with abundant and active V sites, hierarchical porous structure, high electrical conductivity, and strong chemical adsorption/conversion ability of V-N bonding can immobilize the polysulfides and promote reversibly catalytic conversion of polysulfides toward Na2 S. Therefore, as-fabricated RT Na-S batteries can achieve a high reversible capacity (445 mAh g-1 over 800 cycles at 5 A g-1 ) and excellent rate capability (224 mAh g-1 at 10 A g-1 ). The electrocatalysis mechanism of sodium polysulfides is further experimentally and theoretically revealed, which provides a new strategy to develop the highly stable RT Na-S batteries
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|a Journal Article
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|a catalytic polysulfide conversion
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|a chemical adsorption
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|a coordination structure of vanadium
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|a single-atom vanadium catalysts
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|a sodium-sulfur batteries
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|a Yu, Zuxi
|e verfasserin
|4 aut
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|a Zhou, XueFeng
|e verfasserin
|4 aut
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|a Cheng, Xiaolong
|e verfasserin
|4 aut
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|a Huang, Huijuan
|e verfasserin
|4 aut
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|a Liu, Fanfan
|e verfasserin
|4 aut
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|a Yang, Yaxiong
|e verfasserin
|4 aut
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|a He, Shengnan
|e verfasserin
|4 aut
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|a Pan, Hongge
|e verfasserin
|4 aut
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|a Yang, Hai
|e verfasserin
|4 aut
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|a Yao, Yu
|e verfasserin
|4 aut
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|a Rui, Xianhong
|e verfasserin
|4 aut
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|a Yu, Yan
|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), 8 vom: 12. Feb., Seite e2208873
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:35
|g year:2023
|g number:8
|g day:12
|g month:02
|g pages:e2208873
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|u http://dx.doi.org/10.1002/adma.202208873
|3 Volltext
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