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Coupling of ReS2 nanosheet arrays with hollow NiCoS4 nanocubes enables ultrafast Na+ diffusion kinetics and super Na+ storage of a NiCoS4@ReS2 heterostructure
Materials Chemistry Frontiers ( IF 6.0 ) Pub Date : 2021-08-23 , DOI: 10.1039/d1qm00841b
Zhiyong Li 1, 2 , Rui Sun 1, 2 , Zhaoxia Qin 1 , Xinlong Liu 2 , Caihong Wang 1 , Shengjun Lu 1 , Yufei Zhang 3 , Haosen Fan 2
Affiliation  

In this paper, an innovative hierarchical NiCoS4@ReS2 heterostructure has been successfully constructed by anchoring ReS2 nanosheet arrays on hollow NiCoS4 nanocubes, in which the heterointerface coupling effect can facilitate the charge transport and enhance the kinetics of the conversion reaction. The internal hollow space provides sufficient space to accommodate the volume expansion and the outer two-dimensional ReS2 nanosheet realizes the rapid electron transport and insertion/extraction of sodium ions. As expected, the hierarchical NiCoS4@ReS2 anode demonstrated a good sodium-ion storage capacity with an outstanding rate capability (297 mA h g−1 at 3 A g−1) and ultra-stable cycling performance (396 mA h g−1 at 1 A g−1 after 500 cycles). This original report can provide a straightforward way for the synthesis of heterostructured metal sulfides and can increase the research scope of electrode materials for SIBs.

中文翻译:

ReS2 纳米片阵列与空心 NiCoS4 纳米立方体的耦合实现了 NiCoS4@ReS2 异质结构的超快 Na+ 扩散动力学和超 Na+ 存储

在本文中,通过将ReS 2纳米片阵列锚定在空心NiCoS 4纳米立方体上,成功构建了一种创新的分层NiCoS 4 @ReS 2异质结构,其中异质界面耦合效应可以促进电荷传输并增强转化反应的动力学。内部中空空间提供了足够的空间来容纳体积膨胀,外部二维ReS 2纳米片实现了钠离子的快速电子传输和嵌入/脱嵌。正如预期的那样,分层 NiCoS 4 @ReS 2阳极表现出良好的钠离子存储能力和出色的倍率能力(297 mA hg-1 at 3 A g -1)和超稳定循环性能(396 mA hg -1 at 1 A g -1 500 次循环后)。这份原始报告可以为异质结构金属硫化物的合成提供一种直接的方法,并可以增加 SIBs 电极材料的研究范围。
更新日期:2021-09-07
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