1. Confined Sulfur in 3 D MXene/Reduced Graphene Oxide Hybrid Nanosheets for Lithium-Sulfur Battery.
- Author
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Bao, Weizhai, Xie, Xiuqiang, Xu, Jing, Guo, Xin, Song, Jianjun, Wu, Wenjian, Su, Dawei, and Wang, Guoxiu
- Subjects
GRAPHENE oxide ,METAL nanoparticles ,NANOPARTICLE synthesis ,POLYSULFIDES ,SULFUR ,LITHIUM sulfur batteries - Abstract
Three-dimensional metal carbide MXene/reduced graphene oxide hybrid nanosheets are prepared and applied as a cathode host material for lithium-sulfur batteries. The composite cathodes are obtained through a facile and effective two-step liquid-phase impregnation method. Owing to the unique 3 D layer structure and functional 2 D surfaces of MXene and reduced graphene oxide nanosheets for effective trapping of sulfur and lithium polysulfides, the MXene/reduced graphene oxide/sulfur composite cathodes deliver a high initial capacity of 1144.2 mAh g
−1 at 0.5 C and a high level of capacity retention of 878.4 mAh g−1 after 300 cycles. It is demonstrated that hybrid metal carbide MXene/reduced graphene oxide nanosheets could be a promising cathode host material for lithium-sulfur batteries. [ABSTRACT FROM AUTHOR]- Published
- 2017
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