Herein, we report the synthesis of hybrid nanostructures obtained by densely growing MoS₂ nanosheet layers on hydrophobic hollow carbon spheres (abbreviated as MoS₂-HCS) through a solvothermal method. The morphologies and compositions of the MoS₂-HCS hybrid are well investigated. The electrochemical performance of the MoS₂-HCS sphere is investigated in both supercapacitors and the hydrogen evolution reaction. The MoS₂-HCS exhibits a larger specific capacitance of 334 F g⁻¹ than the bare MoS₂ of 204 F g⁻¹ at 1 A g⁻¹, an improved rate capability of 86% from 1 to 20 A g⁻¹ and a stable cycling performance of 87% capacitance retention after 5000 cycles when assembled in a supercapacitor. In addition, MoS₂-HCS also show enhanced electrocatalytic activity for the electrochemical hydrogen evolution reaction in acidic media.

中文翻译：

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中空碳球上 致密的MoS ₂纳米片层的合成及其在超级电容器中的应用和电化学制氢反应†

在本文中，我们报道了通过溶剂热法在疏水性空心碳球（简称为MoS ₂ -HCS）上密集生长MoS ₂纳米片层而获得的杂化纳米结构的合成。充分研究了MoS ₂ -HCS杂化物的形态和组成。在超级电容器和析氢反应中均研究了MoS ₂ -HCS球的电化学性能。MoS ₂ -HCS在1 A g ^-1时比204 F g ^-1的裸MoS ₂表现出更大的334 F g ^-1的比电容，从1到20 A g ^-1的速率提高了86％当安装在超级电容器中时，经过5000次循环后，其稳定的循环性能（电容保持率为87％）。此外，MoS ₂ -HCS在酸性介质中对电化学放氢反应也显示出增强的电催化活性。