Constructing Highly Oriented Configuration by Few-Layer MoS2: Toward High-Performance Lithium-Ion Batteries and Hydrogen Evolution Reactions

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• 作者：Sanpei Zhang ; B. V. R. Chowdari ; Zhaoyin Wen ; Jun Jin ; Jianhua Yang
• 刊名：ACS Nano
• 出版年：2015
• 出版时间：December 22, 2015
• 年：2015
• 卷：9
• 期：12
• 页码：12464-12472
• 全文大小：675K
• ISSN：1936-086X

文摘

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^鈥? is delivered at 500 mA g^鈥? 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.