Enhancing Sodium-Ion Transport by Hollow Nanotube Structure Design of a V5S8C Anode for Sodium-Ion Batteries
V5S8 has received extensive attention in the field of sodium-ion batteries (SIBs) due to its two-dimensional (2D) layered structure, and weak van der Waals forces between V-S accelerate the transport of sodium ions. However, the long-term cycling of V5S8 still suffers from volume expansion and low conductivity. Herein, a hollow nanotube V5S8C (H-V5S8@C) with improved conductivity was synthesized by a solvothermal method to alleviate cracking caused by volume expansion. Benefiting from the large specific surface area of the hollow nanotube structure and uniform carbon coating, H-V5S8@C exhibits a more active site and enhanced conductivity. Meanwhile, the heterojunction formed by a few residual MoS2 and the outer layer of V5S8 stabilizes the structure and reduces the ion migration barrier with fast Na+ transport. Specifically, the H-V5S8@C anode provides an enhanced rate performance of 270.1 mAh g-1 at 15 A g-1 and high cycling stability of 291.7 mAh g-1 with a retention rate of 90.98% after 300 cycles at 5 A g-1. This work provides a feasible approach for the structural design of 2D layered materials, which can promote the practical application of fast-charging sodium-ion batteries.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:16 |
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| Enthalten in: |
ACS applied materials & interfaces - 16(2024), 5 vom: 07. Feb., Seite 6143-6151 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Chen, He-Zhang [VerfasserIn] |
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| Links: |
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| Themen: |
2D layered materials |
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| Anmerkungen: |
Date Revised 08.02.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/acsami.3c17858 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM367605295 |
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| 520 | |a V5S8 has received extensive attention in the field of sodium-ion batteries (SIBs) due to its two-dimensional (2D) layered structure, and weak van der Waals forces between V-S accelerate the transport of sodium ions. However, the long-term cycling of V5S8 still suffers from volume expansion and low conductivity. Herein, a hollow nanotube V5S8C (H-V5S8@C) with improved conductivity was synthesized by a solvothermal method to alleviate cracking caused by volume expansion. Benefiting from the large specific surface area of the hollow nanotube structure and uniform carbon coating, H-V5S8@C exhibits a more active site and enhanced conductivity. Meanwhile, the heterojunction formed by a few residual MoS2 and the outer layer of V5S8 stabilizes the structure and reduces the ion migration barrier with fast Na+ transport. Specifically, the H-V5S8@C anode provides an enhanced rate performance of 270.1 mAh g-1 at 15 A g-1 and high cycling stability of 291.7 mAh g-1 with a retention rate of 90.98% after 300 cycles at 5 A g-1. This work provides a feasible approach for the structural design of 2D layered materials, which can promote the practical application of fast-charging sodium-ion batteries | ||
| 650 | 4 | |a Journal Article | |
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| 650 | 4 | |a anode materials | |
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| 650 | 4 | |a sodium-ion batteries | |
| 700 | 1 | |a Wen, Qing |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Ying-de |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Zhen-Yu |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Pei-Yao |e verfasserin |4 aut | |
| 700 | 1 | |a Wei, Han-Xin |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Hai-Yan |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Xia-Hui |e verfasserin |4 aut | |
| 700 | 1 | |a Tang, Lin-Bo |e verfasserin |4 aut | |
| 700 | 1 | |a Zheng, Jun-Chao |e verfasserin |4 aut | |
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