Metal-Organic Frameworks derived novel hierarchical durian-like nickel sulfide (NiS2) as an anode material for high-performance sodium-ion batteries
Metal-Organic Frameworks derived novel hierarchical durian-like nickel sulfide (NiS2) as an anode material for high-performance sodium-ion batteries
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DOI：
10.1016/j.matlet.2017.03.087
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发表时间：
2017-06
影响因子：
3
通讯作者：
Kunjie Zhu;Guo-cong Liu;Yang Wang;Jinkang Liu;Siqi Li;Linyu Yang;Sufang Liu;H. Wang;Tian Xie
中科院分区：
文献类型：
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作者：
Kunjie Zhu;Guo-cong Liu;Yang Wang;Jinkang Liu;Siqi Li;Linyu Yang;Sufang Liu;H. Wang;Tian Xie
首次报道了钠离子电池负极材料——镍金属有机框架（MOF）衍生的硫化镍（NiS2）。该合成策略涉及一种新方法，其中以镍基MOF为前驱体，然后在固相反应中通过升华硫进行硫化。合成的 Ni-MOFs 衍生的 NiS2 显示出由直径约为 10 nm 的纳米颗粒和具有 3 维导电网络骨架的无定形碳制成的分级榴莲状纳米结构。此外，由于新颖的分层纳米结构，钠离子能够轻松地插入活性材料或从活性材料中脱出。结果，所合成的Ni-MOF衍生的NiS2纳米结构电极表现出高比容量和优异的倍率性能。我们相信，分层 Ni-MOFs 衍生的 NiS2 纳米颗粒将成为最有前途的钠离子电池电极材料之一。
An anode material for sodium-ion batteries, Ni-Metal-Organic Frameworks (MOFs)-derived nickel sulfide (NiS2), is first reported. The synthesis strategy involves a novel method in which Ni-based MOFs is fabricated as precursor and then sulfured by sublimed sulfur in solid phase reaction. The as synthesized Ni-MOFs-derived NiS2shows a hierarchical durian-like nanostructure made of nanoparticles with the diameter of around 10 nm and amorphous carbon with 3 dimensional conductive net skeleton. Moreover, due to the novel hierarchical nanostructure, sodium ions are able to easily insert/extract into/from the active material. As a result, the as synthesized Ni-MOF-derived NiS2nanostructure electrode exhibits high specific capacity and excellent rate performance. We believe that the hierarchical Ni-MOFs-derived NiS2nanoparticles will be one of the most promising electrode materials for sodium-ion batteries.