Coaxial MoS₂@Carbon Hybrid Fibers: A Low-Cost Anode Material for High-Performance Li-Ion Batteries.
Coaxial MoS₂@Carbon Hybrid Fibers: A Low-Cost Anode Material for High-Performance Li-Ion Batteries.
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同轴MoS2@碳混合纤维：高性能锂离子电池的低成本阳极材料
DOI：
10.3390/ma10020174
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发表时间：
2017-02-13
期刊：
影响因子：
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通讯作者：
Wei B
中科院分区：
文献类型：
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作者：
Zhou R;Wang JG;Liu H;Liu H;Jin D;Liu X;Shen C;Xie K;Wei B
采用低成本的生物质碳基质，通过水热法合成了MoS2@C复合材料。来源于天然棉的碳纤维为MoS2纳米片的均匀生长提供了一个三维开放的框架，从而分层构建了同轴结构。这种独特的结构可以协同受益于导电碳支架和多孔MoS2纳米结构的快速Li离子和电子传输。因此，MoS2@carbon复合材料在用作锂离子电池负极时，表现出820 mAh·g−1的高可逆比容量、高倍率性能（2A·g− 1时为457 mAh·g − 1）和优异的循环稳定性。生物质衍生碳的使用使得MoS2@carbon复合材料成为低成本和有前途的高性能锂离子电池负极材料。
A low-cost bio-mass-derived carbon substrate has been employed to synthesize MoS2@carbon composites through a hydrothermal method. Carbon fibers derived from natural cotton provide a three-dimensional and open framework for the uniform growth of MoS2 nanosheets, thus hierarchically constructing coaxial architecture. The unique structure could synergistically benefit fast Li-ion and electron transport from the conductive carbon scaffold and porous MoS2 nanostructures. As a result, the MoS2@carbon composites—when serving as anodes for Li-ion batteries—exhibit a high reversible specific capacity of 820 mAh·g−1, high-rate capability (457 mAh·g−1 at 2 A·g−1), and excellent cycling stability. The use of bio-mass-derived carbon makes the MoS2@carbon composites low-cost and promising anode materials for high-performance Li-ion batteries.