SnS2 nanoparticles anchored on three-dimensional reduced graphene oxide as a durable anode for sodium ion batteries

SnS2 nanoparticles anchored on three-dimensional reduced graphene oxide as a durable anode for sodium ion batteries
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锚定在三维还原氧化石墨烯上的 SnS2 纳米粒子作为钠离子电池的耐用阳极

DOI:
10.1016/j.cej.2018.01.119
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发表时间:
2018-05
影响因子:
15.1
通讯作者:
Liu Meilin
Liu Meilin
中科院分区:
工程技术1区
文献类型:
--
作者:
Zheng Jie;Xiong Xunhui;Wang Guanhua;Lin Zhihua;Ou Xing;Yang Chenghao;Liu Meilin

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采用一种新颖且简便的方法将SnS 2纳米颗粒与三维还原氧化石墨烯(3DRGO)偶联,得到SnS2@3DRGO复合材料,该复合材料作为钠离子电池的阳极材料,具有显着的循环性能和高可逆容量。SnS2@3DRGO复合材料具有牢固锚定在3DRGO上的30 nm尺寸的SnS 2纳米颗粒。与SnS 2相比,SnS2@3DRGO在0.1 A g− 1下具有更高的比容量(753.8 mAh g− 1)和上级长循环寿命,在2 A g−1下循环700次后容量留存率为75.4%。在循环过程中,独特的多孔结构和石墨烯缓冲层对SnS 2纳米颗粒的良好限制在实现快速插入/提取动力学和抑制SnS 2及其相应放电产物的聚集方面具有关键差异,使得SnS2@3DRGO成为用于SIB的非凡且稳定的阳极材料。
A novel and facile approach is applied to couple SnS2nanoparticles with three-dimensional reduced graphene oxide (3DRGO), resulting in a SnS2@3DRGO composite which displays remarkable cycling performance and high reversible capacity as anode material for sodium ion batteries. The SnS2@3DRGO composite is equipped with SnS2nanoparticles with the size of 30 nm robustly anchoring on 3DRGO. Compared with SnS2, SnS2@3DRGO delivers a higher specific capacity of 753.8 mAh g−1at 0.1 A g−1and a superior long cycle-life with a capacity retention rate of 75.4% after 700 cycles at 2 A g−1. During the cycling process, the unique porous structure and well confined SnS2nanoparticles by graphene buffer layer make a critical difference in achieving rapid kinetic of insertion/extraction and suppressing aggregation of SnS2and the corresponding discharge product, rendering SnS2@3DRGO to be an extraordinary and stable anode material for SIBs.
通过在掺硫石墨烯片上强结合纳米结构 Sb2S3 来增强钠离子电池性能。
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