Hierarchical SnS2/carbon nanotube@reduced graphene oxide composite as an anode for ultra-stable sodium-ion batteries
Article
Article Title | Hierarchical SnS2/carbon nanotube@reduced graphene oxide composite as an anode for ultra-stable sodium-ion batteries |
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Article Category | Article |
Authors | Sun, Yu (Author), Yang, Yanling (Author), Shi, Xiao-Lei (Author), Suo, Guoquan (Author), Chen, Huajun (Author), Noman, Muhammad (Author), Tao, Xinyong (Author) and Chen, Zhi-Gang (Author) |
Journal Title | Chemical Engineering Journal Advances |
Journal Citation | 4, pp. 1-9 |
Article Number | 100053 |
Number of Pages | 9 |
Year | 2020 |
Place of Publication | Netherlands |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.ceja.2020.100053 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S2666821120300533 |
Abstract | Ultrathin SnS2 layers with high theoretical specific capacity displays promising advantages as an anode in sodium storage systems. However, their poor conductivity and large capacity loss during charging/discharging process are urgently needed to be addressed. Herein, an exotic hierarchical SnS2/carbon nanotube@reduced graphene oxide (SnS2/CNT@rGO) composite has been designed and developed to be an anode for sodium-ion batteries. Functionally, the CNT penetrates into the petals of SnS2 micro-flowers to increase the conductivity of SnS2, while the three-dimensional rGO wraps around the SnS2/CNT composite to relieve the volume expansion of SnS2 during the charging/discharging process and construct “rGO conductive bridge” to accelerate electrode reaction kinetics. Benefiting from these exotic functionalization, the SnS2/CNT@rGO anode possesses excellent reversible capacity and superior cycling stability with a high reversible capacity of 528 mA h g−1 at 50 mA g−1 and a retained capacity of 301 mA h g−1 after 1000 cycles at 1 A g−1, which are better than most of the previously reported Sn-based and carbon-based anode materials. This study offers a promising strategy for significantly improving the cycling stability in the ultra-stable electrode materials in sodium-ion batteries. |
Keywords | SnS2; Carbon nanotube; Reduced graphene oxide; Sodium-ion battery |
ANZSRC Field of Research 2020 | 401605. Functional materials |
Byline Affiliations | Shaanxi University of Science and Technology, China |
Centre for Future Materials | |
Zhejiang University of Technology, China | |
Open access url | https://www.sciencedirect.com/science/article/pii/S2666821120300533 |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q5zw4/hierarchical-sns2-carbon-nanotube-reduced-graphene-oxide-composite-as-an-anode-for-ultra-stable-sodium-ion-batteries
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