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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202005802
|2 doi
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|a pubmed24n1055.xml
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|a eng
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| 100 |
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|a Li, Yu
|e verfasserin
|4 aut
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|a Co-Construction of Sulfur Vacancies and Heterojunctions in Tungsten Disulfide to Induce Fast Electronic/Ionic Diffusion Kinetics for Sodium-Ion Batteries
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|c 2020
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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
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|2 rdacarrier
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|a Date Revised 24.11.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2020 Wiley-VCH GmbH.
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|a Engineering novel electrode materials with unique architectures has a significant impact on tuning the structural/electrochemical properties for boosting the performance of secondary battery systems. Herein, starting from well-organized WS2 nanorods, an ingenious design of a one-step method is proposed to prepare a bimetallic sulfide composite with a coaxial carbon coating layer, simply enabled by ZIF-8 introduction. Rich sulfur vacancies and WS2 /ZnS heterojunctions can be simultaneously developed, that significantly improve ionic and electronic diffusion kinetics. In addition, a homogeneous carbon protective layer around the surface of the composite guarantees an outstanding structural stability, a reversible capacity of 170.8 mAh g-1 after 5000 cycles at a high rate of 5 A g-1 . A great potential in practical application is also exhibited, where a full cell based on the WS2- x /ZnSC anode and the P2-Na2/3 Ni1/3 Mn1/3 O2 cathode can maintain a reversible capacity of 89.4 mAh g-1 after 500 cycles at 1 A g-1 . Moreover, the underlying electrochemical Na storage mechanisms are illustrated in detail by theoretical calculations, electrochemical kinetic analysis, and operando X-ray diffraction characterization
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|a Journal Article
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|a anodes
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|a bimetallic sulfides
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|a heterojunctions
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|a sodium-ion batteries
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|a sulfur vacancies
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|a Qian, Ji
|e verfasserin
|4 aut
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|a Zhang, Minghao
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Shuo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Zhaohua
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Maosheng
|e verfasserin
|4 aut
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| 700 |
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|a Bai, Ying
|e verfasserin
|4 aut
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| 700 |
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|a An, Qinyou
|e verfasserin
|4 aut
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| 700 |
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|a Xu, Huajie
|e verfasserin
|4 aut
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| 700 |
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|a Wu, Feng
|e verfasserin
|4 aut
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|a Mai, Liqiang
|e verfasserin
|4 aut
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| 700 |
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|a Wu, Chuan
|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 32(2020), 47 vom: 04. Nov., Seite e2005802
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:32
|g year:2020
|g number:47
|g day:04
|g month:11
|g pages:e2005802
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|u http://dx.doi.org/10.1002/adma.202005802
|3 Volltext
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