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首页> 外文期刊>ACS applied materials & interfaces >Hierarchical Nanostructured NiS/MoS2/C Composite Hollow Spheres for High Performance Sodium-Ion Storage Performance
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Hierarchical Nanostructured NiS/MoS2/C Composite Hollow Spheres for High Performance Sodium-Ion Storage Performance

机译:用于高性能钠离子储存性能的等级纳米结构NIS / MOS2 / C复合空心球体

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摘要

Development of high performance electrode materials for sodium-ion batteries has been given a lot of attention in recent years but challenges remain. Herein, we have successfully synthesized the first NiS/MoS_(2)/C composite hollow spheres (NMSCHSs) via a facile hard template method combined with calcined sulfidation process. Owing to its unique hierarchical nanostructure with NiS nanoparticles embedded in shell wrapped with MoS_(2) nanosheets, the NMSCHS-based anode electrodes exhibit superior rate capability and cycling stability, with a specific discharge capacity of 516 mAh g~(–1) and 98.5% retention after 60 cycles at a current density of 0.1 A g~(–1) and a discharge capacity of 398 mAh g~(–1) even at 5 A g~(–1).
机译:近年来,为钠离子电池的高性能电极材料的开发已经有很多关注,但仍然存在挑战。 这里,我们通过与煅烧的硫化过程结合的容易硬模板方法成功地合成了第一NIS / MOS_(2)/ C复合空心球体(NMSCHS)。 由于其独特的分层纳米结构与嵌入壳体的NIS纳米颗粒嵌入壳体,基于NMSCHS的阳极电极表现出优异的速率能力和循环稳定性,具有516mAhg〜(-1)和98.5的特定放电容量。 在电流密度为0.1Ag〜(-1)的60次循环后的%保留,即使在5Ag〜(-1)下也为398mAhg〜(-1)的放电容量。

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