Hydrothermal exfoliated molybdenum disulfide nanosheets as anode material for lithium ion batteries  

作　　者：Yundan Liu Long Ren Xiang Qi Liwen Yang Jun Li Yao Wang Jianxin Zhong 

机构地区：[1]Hunan Provincial Key Laboratory for Micro Nano Energy Materials and Devices, Xiangtan University [2]Laboratory for Quantum Engineering and Micro Nano Energy Technology and Faculty of Materials and Optoelectronic Physics,Xiangtan University

出　　处：《Journal of Energy Chemistry》2014年第2期207-212,共6页能源化学（英文版）

基　　金：supported by the Grants from National Natural Science Foundation of China(No.51172191,51002129 and 11074211);the National Basic Research Program of China(2012CB921303);the Hunan Provincial Innovation Foundation for Graduate(No.CX2012B265)

摘　　要：Ultrathin MoS2 nanosheets were prepared in high yield using a facile and effective hydrothermal intercalation and exfoliation route. The products were characterized in detail using X-ray diffraction, scanning electron microscopy, transmission electron microscopy and Raman spectroscopy. The results show that the high yield of MoS2 nanosheets with good quality was successfully achieved and the dimensions of the immense nanosheets reached 1 μm-2/zm. As anode material for Li-ion batteries, the as-prepared MoS2 nanosheets electrodes exhibited a good initial capacity of 1190 mAh.g-l and excellent cyclic stability at constant current density of 50 mA.g-1. After 50 cycles, it still delivered reversibly sustained high capacities of 750 mAh.g-1.Ultrathin MoS2 nanosheets were prepared in high yield using a facile and effective hydrothermal intercalation and exfoliation route. The products were characterized in detail using X-ray diffraction, scanning electron microscopy, transmission electron microscopy and Raman spectroscopy. The results show that the high yield of MoS2 nanosheets with good quality was successfully achieved and the dimensions of the immense nanosheets reached 1 μm-2/zm. As anode material for Li-ion batteries, the as-prepared MoS2 nanosheets electrodes exhibited a good initial capacity of 1190 mAh.g-l and excellent cyclic stability at constant current density of 50 mA.g-1. After 50 cycles, it still delivered reversibly sustained high capacities of 750 mAh.g-1.

关 键 词：MoS2 NANOSHEETS EXFOLIATION lithium ion batteries 

分 类 号：O614.612[理学—无机化学]