Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 23, Issue 21, Pages 5051-5058Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201605005
Keywords
anode materials; conducting materials; MoS2; Sn; sodium ion batteries
Categories
Funding
- Natural Science Foundation of China [51402109]
- Project of Public Interest Research and Capacity Building of Guangdong Province [2014A010106007]
- Pearl River S&T NovaProgram of Guangzhou [201506010030]
- Guangdong Innovative and Entrepreneurial Research Team Program [2014ZT05N200]
- Guangdong Natural Science Funds for Distinguished Young Scholar [2016A030306010]
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Sodium ion batteries (SIBs) have been regarded as a prime candidate for large-scale energy storage, and developing high performance anode materials is one of the main challenges for advanced SIBs. Novel structured Sn-MoS2-C@C microspheres, in which Sn nanoparticles are evenly embedded in MoS2 nanosheets and a thin carbon film is homogenously engineered over the microspheres, have been fabricated by the hydrothermal method. The Sn-MoS2-C@C microspheres demonstrate an excellent Na-storage performance as an anode of SIBs and deliver a high reversible charge capacity (580.3mAhg(-1) at 0.05Ag(-1)) and rate capacity (580.3, 373, 326, 285.2, and 181.9mAhg(-1)at 0.05, 0.5, 1, 2, and 5Ag(-1), respectively). A high charge specific capacity of 245mAhg(-1) can still be achieved after 2750 cycles at 2Ag(-1), indicating an outstanding cycling performance. The high capacity and long-term stability make Sn-MoS2-C@C composite a very promising anode material for SIBs.
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