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兰州大学机构库  > 物理科学与技术学院  > 期刊论文
题名: In situ synthesis of CoSx@carbon core-shell nanospheres decorated in carbon nanofibers for capacitor electrodes with superior rate and cycling performances
作者: Liu, Ying; Zhou JY(周金元); Fu, Wenbin; Zhang, Peng; Pan XJ(潘孝军); Xie EQ(谢二庆)
收录类别: SCIE
出版日期: 2017-01
刊名: Carbon
卷号: 114, 期号:null, 页码:187–197
出版者: ELSEVIER
出版地: OXFORD
英文摘要: Transition metal sulfides coupled with carbon materials hold a promising application platform for high-performance supercapacitors. Herein, we report a strategy to fabricate a type of integrated CoSx hollow nanoparticles (HNPs)/C hybrid nanofibers via electrospinning technique combining with hydrothermal method. Results show that the in-situ formed CoSx HNPs were completely covered by a layer of onion-like carbon, which can not only increase their conductivity but also buffer their volume changes during the charging/discharging processes. Interestingly, this type of unique configuration will raise the synergistic effect from excellent electrical conductivity of porous carbon nanofibers (PCNFs) and high specific capacitance of CoSx, endowing the hybrids to be an excellent electrode for high-rate performance supercapacitors. The resultant CoSx/C hybrid electrodes exhibit a high specific capacitance (496.8 F g−1 at 0.5 A g−1), superior rate capability (remaining 66.1% at 100 A g−1), and good cycling stability (over 89.0% after 2000 cycles). Besides, the assembled asymmetric supercapacitors of CoSx/C hybrids//PCNFs show high energy density (15.0 W h kg−1 at power density of 413 kW kg−1) and high cycling stability (over 80% after 2000 cycles).
作者部门: 物理科学与技术学院
通讯作者: Pan, XJ ; Xie, EQ (reprint author), Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China.
学科分类: Chemistry; Materials Science
文章类型: Article
所属项目编号: National Natural Science Foundation of China (Nos. 11474135, 51572118 and 11674140)
所属项目名称: 国家自然科学基金项目
项目资助者: NSFC
语种: 英语
DOI: 10.1016/j.carbon.2016.12.018
ISSN号: 0008-6223
WOS记录号: WOS:000393249600022
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/185699
Appears in Collections:物理科学与技术学院_期刊论文

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Recommended Citation:
Liu, Ying,Zhou JY,Fu, Wenbin,et al. In situ synthesis of CoSx@carbon core-shell nanospheres decorated in carbon nanofibers for capacitor electrodes with superior rate and cycling performances[J]. Carbon,2017,114(null):187–197.
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