期刊
ACS NANO
卷 9, 期 12, 页码 12464-12472出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.5b05891
关键词
oriented configurations; two-dimensional materials; electrochemical performance; molybdenum; nanoparticles
类别
资金
- National Natural Science Foundation of China [51432020]
- Science and Technology Commission of Shanghai Municipality [14JC1493000]
Constructing three-dimensional (3D) architecture with oriented configurations by two-dimensional nanobuilding blocks is highly challenging but desirable for practical applications. The well-oriented open structure can facilitate storage and efficient transport of ion, electron, and mass for high-performance energy technologies. Using MoS2 as an example, we present a facile and effective hydrothermal method to synthesize 3D radially oriented MoS2 nanospheres. The nanosheets in the MoS2 nanospheres are found to have less than five layers with an expanded (002) plane, which facilitates storage and efficient transport of ion, electron, and mass. When evaluated as anode materials for rechargeable Li-ion batteries, the MoS2 nanospheres show an outstanding performance; namely, a specific capacity as large as 1009.2 mA h g(-1) is delivered at 500 mA g(-1) even after 500 deep charge/discharge cycles. Apart from promising the lithium-ion battery anode, this 3D radially oriented MoS2 nanospheres also show high activity and stability for the hydrogen evolution reaction.
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