Hierarchical Nanosheet-Based MS2 (M = Re, Mo, W) Nanotubes Prepared by Templating Sacrificial Te Nanowires with Superior Lithium and Sodium Storage Capacity.
Hierarchical Nanosheet-Based MS2 (M = Re, Mo, W) Nanotubes Prepared by Templating Sacrificial Te Nanowires with Superior Lithium and Sodium Storage Capacity.
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DOI：
10.1021/acsami.8b14976
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发表时间：
2018-10
影响因子：
9.5
通讯作者：
Sheng Liu;Wanwan Lei;Yan Liu;Q. Qiao;Wen-Hau Zhang
中科院分区：
文献类型：
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作者：
Sheng Liu;Wanwan Lei;Yan Liu;Q. Qiao;Wen-Hau Zhang
基于层次化纳米片的纳米管由于其独特的结构使其具有较大的表面积，并为功能应用提供了大量的活性位点，因此具有很大的吸引力。在此，我们展示了一种简单的一锅水热方法，通过使用纳米线作为牺牲模板来制备基于分层纳米片的MS2 （M = Re, Mo， W）纳米管。层次化纳米管显示出~ 30nm的管通道和层次化通道壁，其厚度可调至~ 50nm。在锂离子和钠离子电池的应用中，ReS2层次化纳米管表现出优异的比容量（锂离子电池为1137 mA h g-1，钠离子电池为375 mA h g-1，循环100次后0.1 A g-1），良好的循环稳定性和高倍率能力，表明其在可充电电池中的应用前景。这项工作可能为进一步探索新型分层纳米结构在催化、能源化学、气体吸附和分离等方面的应用开辟了新的机会。
Hierarchical nanosheet-based nanotubes are very attractive because their unique structure endows them with large surface areas and exposes massive active sites for functional applications. We herein demonstrate a facile one-pot hydrothermal approach to fabricate the hierarchical nanosheet-based MS2 (M = Re, Mo, W) nanotubes by using Te nanowires as sacrificial templates. The hierarchical nanotubes show tube channels of ∼30 nm and hierarchical channel walls with a tunable thickness of up to ∼50 nm. As exemplified for application in Li-ion and Na-ion batteries, the ReS2 hierarchical nanotubes exhibit excellent specific capacities (1137 mA h g-1 for Li-ion batteries and 375 mA h g-1 for Na-ion batteries at 0.1 A g-1 after 100 cycles), good cycling stabilities, and high rate capabilities, demonstrating their promising applicability in rechargeable batteries. This work may open up new opportunities for further exploration of new types of hierarchical nanostructures for applications, e.g., in catalysis, energy chemistry, and gas adsorption and separation.