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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202105541
|2 doi
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|a pubmed24n1105.xml
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|a eng
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| 100 |
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|a Luo, Dan
|e verfasserin
|4 aut
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|a Design of Quasi-MOF Nanospheres as a Dynamic Electrocatalyst toward Accelerated Sulfur Reduction Reaction for High-Performance Lithium-Sulfur Batteries
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|c 2022
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|a Text
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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 13.01.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2021 Wiley-VCH GmbH.
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|a Lithium-sulfur (Li-S) batteries are considered as one of the most promising next-generation rechargeable batteries owing to their high energy density and cost-effectiveness. However, the sluggish kinetics of the sulfur reduction reaction process, which is so far insufficiently explored, still impedes its practical application. Metal-organic frameworks (MOFs) are widely investigated as a sulfur immobilizer, but the interactions and catalytic activity of lithium polysulfides (LiPs) on metal nodes are weak due to the presence of organic ligands. Herein, a strategy to design quasi-MOF nanospheres, which contain a transition-state structure between the MOF and the metal oxide via controlled ligand exchange strategy, to serve as sulfur electrocatalyst, is presented. The quasi-MOF not only inherits the porous structure of the MOF, but also exposes abundant metal nodes to act as active sites, rendering strong LiPs absorbability. The reversible deligandation/ligandation of the quasi-MOF and its impact on the durability of the catalyst over the course of the electrochemical process is acknowledged, which confers a remarkable catalytic activity. Attributed to these structural advantages, the quasi-MOF delivers a decent discharge capacity and low capacity-fading rate over long-term cycling. This work not only offers insight into the rational design of quasi-MOF-based composites but also provides guidance for application in Li-S batteries
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|a Journal Article
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|a electrocatalysts
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|a lithium-sulfur batteries
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|a polysulfides
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|a quasi-metal-organic-frameworks
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|a sulfur reduction reaction
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|a Li, Chaojie
|e verfasserin
|4 aut
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|a Zhang, Yongguang
|e verfasserin
|4 aut
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|a Ma, Qianyi
|e verfasserin
|4 aut
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|a Ma, Chuyin
|e verfasserin
|4 aut
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|a Nie, Yihang
|e verfasserin
|4 aut
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|a Li, Matthew
|e verfasserin
|4 aut
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|a Weng, Xuefei
|e verfasserin
|4 aut
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|a Huang, Rong
|e verfasserin
|4 aut
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|a Zhao, Yan
|e verfasserin
|4 aut
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|a Shui, Lingling
|e verfasserin
|4 aut
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|a Wang, Xin
|e verfasserin
|4 aut
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|a Chen, Zhongwei
|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 34(2022), 2 vom: 15. Jan., Seite e2105541
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:34
|g year:2022
|g number:2
|g day:15
|g month:01
|g pages:e2105541
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|u http://dx.doi.org/10.1002/adma.202105541
|3 Volltext
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