The properties of nanomaterials are significantly altered by their topological structures. A new carved MoS₂ nanostructure has been produced by controlling an in situ grown three-dimensional MoS₂ nanomask which was reported recently. The carved molybdenum oxides inside MoS₂ nanomasks have been further reacted with sulfur by encapsulation through the open caps of MoS₂ nanotubes to become MoS₂ nanoflowers with each nanosheet consisting of 6–25 layers (mainly 6–12 layers). Extremely high electrochemical performances have been achieved from the carved MoS₂ nanostructures. A specific capacity of 1569 mA h g⁻¹ at a current rate of 100 mA g⁻¹ after the 176^th cycle has been obtained from the carved MoS₂ nanostructures. The specific capacities tend to be stable even after 200 cycles. The specific capacities of the carved MoS₂ nanostructures are more than twice those of commercially available MoS₂ powders and the reported well designed MoS₂ nanostructures, and even better than the reported MoS₂ composites with conductive carbon nanostructures.

中文翻译：

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通过控制3D MoS ₂纳米掩模来 雕刻MoS ₂纳米结构的设计†

纳米材料的性质因其拓扑结构而显着改变。通过控制原位生长的三维MoS ₂纳米掩模，已生产出一种新的雕刻MoS ₂纳米结构，最近已有报道。MoS ₂纳米掩膜中雕刻的氧化钼已通过与MoS ₂纳米管的开放盖密封而进一步与硫反应，成为MoS ₂纳米花，每个纳米片由6至25层（主要为6至12层）组成。通过雕刻的MoS ₂纳米结构已经获得了极高的电化学性能。比容量为1569 mA hg ^-1从雕刻的MoS ₂纳米结构中获得^第176^个循环后的电流速率为100 mA g ^-1。比容量即使在200次循环后也趋于稳定。雕刻的MoS ₂纳米结构的比容量是市售MoS ₂粉末和报道的设计良好的MoS ₂纳米结构的比容量的两倍以上，甚至比报道的具有导电碳纳米结构的MoS ₂复合材料更好。