Confined Sulfur in 3D MXene/Reduced Graphene Oxide Hybrid Nanosheets for Lithium-Sulfur Battery

被引：183

作者：

Bao, Weizhai ^{[1
]}

Xie, Xiuqiang ^{[1
]}

Xu, Jing ^{[1
]}

Guo, Xin ^{[1
]}

Song, Jianjun ^{[1
]}

Wu, Wenjian ^{[1
,2
]}

Su, Dawei ^{[1
]}

Wang, Guoxiu ^{[1
]}

机构：

[1] Univ Technol Sydney, Fac Sci, Ctr Clean Energy Technol, Sydney, NSW 2007, Australia

[2] Dongguan Univ Technol, Dept Mat Sci & Engn, Dongguan 523808, Peoples R China

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2017年 / 23卷 / 51期

关键词：

electrochemistry; graphene; lithium-sulfur batteries; polysulfide immobilization; LI-S BATTERIES; METAL-ORGANIC FRAMEWORK; TIO2 HOLLOW SPHERES; LONG CYCLE LIFE; HIGH-PERFORMANCE; ION BATTERIES; CARBON NANOSPHERES; FACILE SYNTHESIS; ENERGY-STORAGE; CATHODES;

D O I：

10.1002/chem.201702387

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 3D layer structure and functional 2D 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 1144.2mAhg(-1) at 0.5C and a high level of capacity retention of 878.4mAhg(-1) after 300cycles. It is demonstrated that hybrid metal carbide MXene/reduced graphene oxide nanosheets could be a promising cathode host material for lithium-sulfur batteries.

引用

页码：12613 / 12619

页数：7

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