标题
作者
作者:Li, X (Li, Xiang)[1 ]; Yang, Y (Yang, Yan)[2 ]; Liu, JW (Liu, Jiangwen)[1 ]; Ouyang, LZ (Ouyang, Liuzhang)[1 ]; Liu, J (Liu, Jun)[1 ]; Hu, RZ (Hu, Renzong)[1 ]; Yang, LC (Yang, Lichun)[1 ]; Zhu, M (Zhu, Min)[1 ]
期刊信息
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文献类型:Article
摘要
Carbon fibers derived from bio-template are low cost and environmental benign, therefore have attracted much attention in energy storage materials. In this work, we successfully fabricated MoS2/cotton-derived carbon fibers (MoS2/CDCFs) via hydrothermal route followed by carbonization process. In the composite of MoS2/CDCFs, MoS2 nanosheets vertically grow on the carbon fibers which offer fast ways for electron transfer and at the same time act as robust support to buffer the volume changes of MoS2 nanosheets during discharge/charge cycles. As anode materials for sodium-ion batteries, MoS2/CDCFs exhibit good rate performance and markedly enhanced cyclic stability due to the conductive support of CDCFs. At a current density of 0.1 Ag-1, the MoS2/CDCFs-1 shows an initial reversible capacity of 504.9 mAh g(-1), and maintains 444.5 mAh g(-1) after 50 cycles. Even when the current density increases to 0.5 A g(-1), it maintains 323.1 mAh g(-1) after 150 cycles, which is much higher than the capacity retention of 149.6 mAh g(-1) for the bare MoS2 nanosheets. The improved electrochemical performance verifies the effective strategy of using cotton as carbon source to construct hierarchical composites for sodium-ion batteries. (C)2017 Elsevier B.V. All rights reserved.
关键词
作者关键词:MoS2; Cotton; Carbon fiber; Composite; Sodium-ion battery
作者信息
通讯作者地址:Yang, LC (通讯作者)
 | South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China. |
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电子邮件地址:mslcyang@scut.edu.cn
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类别分类
研究方向:Chemistry; Materials Science; Physics
Web of Science 类别:Chemistry, Physical; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter