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241106s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202415633
|2 doi
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|a pubmed24n1644.xml
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|a (DE-627)NLM379885247
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|a (NLM)39501988
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|a DE-627
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|c DE-627
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|a eng
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| 100 |
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|a Sun, Bingxin
|e verfasserin
|4 aut
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|a Cyclodextrin Metal-Organic Framework Functionalized Carbon Materials with Optimized Interface Electronics and Selective Supramolecular Channels for High-Performance Lithium-Sulfur 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 28.12.2024
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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 During the reaction process in lithium-sulfur batteries, Lewis acidic lithium polysulfides (LiPSs) affect ion distribution and overall electrolyte stability, degrading battery performance and product distribution (e.g., Li2S). Here, a microenvironment regulation strategy with optimized interface electronics and selective supramolecular channels, is proposed to enhance LiPS reaction kinetics through Lewis basic γ-cyclodextrin metal-organic framework (γ-CDMOF). To validate this concept, γ-CDMOF is rapidly synthesized on 3D graphene foam (GF) via a microwave-assisted method, resulting in a γ-CDMOF/GF cathode for high-performance Li-S batteries. A range of analytical techniques combined with density functional theory (DFT) calculations confirm that introducing a Lewis basic supramolecular microenvironment mitigates the LiPSs shuttle effect, enhances polysulfide capture, and improves sulfur redox conversion. Additionally, COMSOL simulations reveal that the γ-CDMOF framework and oxygen sites significantly reduce volumetric expansion stress during the LiPS solid-liquid phase transition. Impressively, the γ-CDMOF/GF cathode exhibits exceptional performance, including a high specific capacity (1253.01 mAh g⁻¹ at 0.1C), excellent rate performance (589.68 mAh g⁻¹ at 5C), and long cycle life (over 1200 cycles). This study introduces a new concept of supramolecular microenvironment regulation and interfacial interaction strategy, offering a unique approach for the development of multifunctional electrode materials
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|a Journal Article
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|a cyclodextrin metal–organic framework
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|a interface electron interaction
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| 650 |
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|a lithium–sulfur batteries
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| 650 |
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|a sulfur reduction kinetics
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| 650 |
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4 |
|a supramolecular microenvironment
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| 700 |
1 |
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|a Wang, Dan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jiang, Yuxuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Rui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lyu, Lulu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Diao, Guowang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Wang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Pang, Huan
|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), 52 vom: 01. Dez., Seite e2415633
|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:52
|g day:01
|g month:12
|g pages:e2415633
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|u http://dx.doi.org/10.1002/adma.202415633
|3 Volltext
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|d 36
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