期刊
APPLIED SURFACE SCIENCE
卷 390, 期 -, 页码 209-215出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2016.08.078
关键词
Molybdenum disulfide; Layer-controlled; Graphene aerogel; Hydrothermal method; Lithium-ion battery
类别
资金
- National Natural Science Foundation of China [21501119, 11575105, 21371116, 21571063]
- Science and Technology Commission of Shanghai Municipality [15DZ0501402, 15195800600]
- Shanghai Municipal Education Commission (Peak Discipline Construction Program)
- Program for Changjiang Scholars and Innovative Research Team in University [IRT13078]
Layer-controlled MoS2/graphene aerogels (MoS2/GA) composites are synthesized by a facile hydrothermal route, in which few-layer (5-15 layers) MoS2 nanosheets with high crystalline are decorated on the surface of graphene nanosheets homogeneously and tightly. The number of the MoS2 layers can be easily controlled through adjusting the amount of molybdenum source in the reaction system. Moreover, the growth mechanism of the lay-controlled MoS2/GA composites is proposed. The three-dimensional MoS2/GA with macroporous micro-structure not only shortens the transportation length of electrons and ions, but also restrains the re-stacking of MoS2 effectively, stabilizing the electrode structure during repeated charging/discharging processes. Electrochemical tests demonstrate that this few-layer MoS2/GA composite exhibits a high reversible capacity of 1085.0 mAh g(-1) at current density of 100 mA g(-1), as well as extraordinarily high cycling stability and rate capability. (C) 2016 Elsevier B.V. All rights reserved.
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