期刊
JOURNAL OF POWER SOURCES
卷 280, 期 -, 页码 39-46出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2015.01.064
关键词
Molybdenum disulphide; Flower-like structure; Graphene-carbon nanotube network; Hierarchical structure; Lithium ion batteries
资金
- Center for BioNano Health-Guard - Ministry of Science, ICT & Future Planning (MSIP) of Korea as the Global Frontier Project [HGUARD_2013-M3A6B2078944]
- Fundamental Technology Research Program through the National Research Foundation of Korea (NRF) grants - Korean government (MSIP) [2014M3A7B4052201]
We report the design and synthesis of three dimensional flower-like molybdenum disulphide (f-MoS2) hierarchical structures, on reduced graphene oxide (RGO)/oxidized multi-walled carbon nanotube (o-MWCNT) backbone (f-MoS2/RGO/o-MWCNT), through one-pot hydrothermal method. Control experiments reveal that the homogenously distributed o-MWCNTs on RGO play an essential role for the formation of such morphology. As an anode for lithium ion batteries, the f-MoS2/RGO/o-MWCNT hybrid delivers a high reversible capacity of 1275 mAh g(-1) at the current density of 100 mA g(-1), superior rate capability and excellent long cycle life, with capacity retention of 93% after 100 cycles. The outstanding electrochemical performance can be attributed to the large surface area, short diffusion length and continuous electron transport pathway, as a consequence of the intimate contact between f-MoS2, graphene, and o-MWCNTs. (C) 2015 Elsevier B.V. All rights reserved.
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