As a two-dimensional layered material, SnS is considered a promising candidate anode material for sodium storage due to its high theoretical capacity (1022 mA h g⁻¹) and large interlayer spacing (4.33 Å). However, its application is hindered by its large volume expansion and low electronic conductivity. Herein, a unique MoS₂/SnS@C hollow hierarchical nanotube with self-supporting structure was synthesized through a facile solvothermal reaction. The results indicate that the hollow nanotube structure can support the material structure and provide a large sodium-ion migration channel. In addition, the heterojunction that formed between SnS and MoS₂ can effectively reduce the kinetic barrier of sodium-ion diffusion. Furthermore, the hollow hierarchical nanotube can effectively alleviate the radial and hoop stresses of the SnS sodiation process, inhibit the volume expansion of the material, and increase the capacitance contribution ratio of the material at a high rate. The MoS₂/SnS@C composites used as anode materials in sodium-ion batteries (SIBs) delivered excellent rate and cycle performance. The discharge capacity was about 325 mA h g⁻¹ at a high current density of 15 A g⁻¹, and it remained at about 292 mA h g⁻¹ after 2000 cycles at 5 A g⁻¹ current density.

作为一种二维层状材料，由于其高理论容量（1022 mA hg ^-1）和大层间距（4.33 Å），SnS 被认为是一种有前途的钠存储候选负极材料。然而，其体积膨胀大和电子电导率低，阻碍了其应用。在此，通过简单的溶剂热反应合成了一种独特的具有自支撑结构的MoS ₂ /SnS@C 中空分级纳米管。结果表明，中空纳米管结构可以支撑材料结构并提供大的钠离子迁移通道。此外，SnS 和 MoS ₂之间形成的异质结能有效降低钠离子扩散的动力势垒。此外，中空分级纳米管可以有效缓解SnS钠化过程的径向和环向应力，抑制材料的体积膨胀，并高速提高材料的电容贡献率。用作钠离子电池 (SIB) 负极材料的 MoS ₂ /SnS@C 复合材料具有出色的倍率和循环性能。放电容量在15 A g ^-1的高电流密度下约为325 mA hg ^-1，并且在5 A g ^-1电流密度下2000次循环后仍保持在约292 mA hg ^-1。