Currently, MoS₂ is being investigated as a lithium-ion battery (LIB) anode material because of its high theoretical capacity. However, its significantly low electrochemical activity and cyclic stability limit its utilization. Nevertheless, small-sized MoS₂ possibly overcomes these issues. Herein, small-sized MoS₂ with uniform particle sizes of about 20–30 nm was prepared via a novel solution-based microwave-assisted precursor pyrolysis method. The resultant MW-MoS₂ sample has a high surface area of 96.9 m² g⁻¹ and large pore volume (0.38 cm³ g⁻¹) with pore size distribution mainly in the meso/macropore scale, which are beneficial for electrolyte storage and low charge carrier conductive resistances. The large pore surface area and volume of the small-sized MoS₂ can also ease the volume expansion during the charging and discharging process. As an LIB anode, the MW-MoS₂ material exhibits an amazingly large specific capacity of 1355 mA h g⁻¹ at a low current density of 0.5 A g⁻¹. At a high current density of 10 A g⁻¹, a specific capacity of 435 mA h g⁻¹ is obtained, demonstrating its excellent rate capability. Furthermore, a large discharge capacity of 544 mA h g⁻¹ is maintained after 500 cycles at 5 A g⁻¹, indicating its fascinatingly high cyclic stability.

中文翻译：

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通过基于溶液的新型微波辅助方法获得 均匀的小型MoS ₂，具有出色的可逆锂存储性能†

当前，由于其高的理论容量，正在研究MoS ₂作为锂离子电池（LIB）阳极材料。但是，其极低的电化学活性和循环稳定性限制了其利用率。但是，小型MoS ₂可能会克服这些问题。在本文中，通过新型的基于溶液的微波辅助前驱体热解方法制备了具有约20–30 nm均匀粒径的小尺寸MoS ₂。所得的MW-MoS ₂样品具有96.9 m ² g ^-1的高表面积和较大的孔体积（0.38 cm ³ g ^-1）的孔径分布主要在介孔/大孔尺度上，这有利于电解质存储和低载流子导电电阻。较小的MoS ₂的大的孔表面积和体积还可以减轻充电和放电过程中的体积膨胀。作为LIB阳极，MW-MoS ₂材料在0.5 A g ^-1的低电流密度下显示出惊人的1355 mA hg ^-1的大比容量。在10 A g ^-1的高电流密度下，获得了435 mA hg ^-1的比电容，这证明了其出色的倍率能力。此外，大的放电容量为544 mA hg ^-1在5 A g ^-1下经过500次循环后，其保持稳定，表明其令人着迷的高循环稳定性。