Morphology-controlled synthesis of MoS2 nanostructures with different lithium storage properties

被引：92
|
作者：
Wang, Xiwen [1 ]
Zhang, Zhian [1 ]
Chen, Yaqiong [1 ]
Qu, Yaohui [1 ]
Lai, Yanqing [1 ]
Li, Jie [1 ]
机构：
[1] Cent S Univ, Sch Met & Environm, Changsha 410083, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 600卷
关键词：
Molybdenum disulfide; Nanospheres; Nanoribbons; Nanoparticles; Lithium-ion batteries; EXCELLENT ELECTROCHEMICAL PERFORMANCE; ION BATTERIES; ANODE MATERIALS; ASSISTED SYNTHESIS; HIERARCHICAL MOS2; FACILE SYNTHESIS; NANOSHEETS; NANOWIRES;
D O I：
10.1016/j.jallcom.2014.02.127
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A one-step hydrothermal process was employed to prepare a series of MoS2 nanostructures via simply altering the surfactant as soft template and hydrothermal reaction temperature. Three kinds of MoS2 nanostructures (three-dimensional (3D) hierarchical nanospheres, one-dimensional (1D) nanoribbons, and large aggregated nanoparticles) were successfully achieved and investigated well by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), and Brunauer-Emmett-Teller analysis (BET). Electrochemical tests reveal that these MoS2 samples could deliver high initial discharge capacities (higher than 1050.0 mA h g(-1)), but various cycling performances. The hierarchical MoS2 nanospheres assembled by sheet-like subunits show the highest specific capacity of 1355.1 mA h g(-1), and 66.8% of which can be retained after 50 cycles. The good lithium storage property of hierarchical MoS2 nanospheres can be attributed to the higher electrolyte/MoS2 contact area and stable 3D layered structure. (C) 2014 Elsevier B. V. All rights reserved.
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收藏
页码：84 / 90
页数：7
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