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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: Constructing optimized three-dimensional electrochemical interface in carbon nanofiber/carbon nanotube hierarchical composites for high-energy-density supercapacitors
作者: Zhou JY(周金元); Chen, Jiayi; Han, Sheng; Zhao, Hao; Bai, Jinglong; Yang, Zhenyu; Mu, Xuemei; Liu, Ying; Bian, Damin; Sun, Gengzhi; Zhang, ZX(张振兴); 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: 111, 期号:null, 页码:502-512
出版者: ELSEVIER
出版地: OXFORD
英文摘要: It is demonstrated that the performances of supercapacitors are often affected by the electrochemical interface in their electrodes. In this work, the electrochemical interface in carbon nanofiber (CNF)/carbon nanotube (CNT) hierarchical composites was well optimized by tuning the diameters of electrospun CNF skeletons and the densities/lengths of CNT hierarchies. The optimized CNF/CNT composites decorated with MnO2 exhibited high specific capacitance (similar to 631.0 F g(-1) at current density of 0.9 A g(-1)) and excellent cycling stability (over 95% after 1500 cycles). Moreover, the assembled symmetric supercapacitors show a high flexibility and an excellent dynamic cycling stability, outputting the maximum energy density of 19.11 W h kg(-1) and the maximum power density reaching 25,000 W kg(-1). This research confirmed that the performances of the electrodes based on CNF/CNT hierarchical composites and their counterpart devices can be well tuned by tailoring their three-dimensional electrochemical interface. (C) 2016 Elsevier Ltd. All rights reserved.
作者部门: 物理科学与技术学院,兰州大学 ; 先进材料学院,南京工业大学
通讯作者: Zhou, JY ; Xie, EQ (reprint author), Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Gansu, 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 [11474135, 51572118] ; Fundamental Research Funds for the Central Universities [lzujbky-2015-110]
所属项目名称: 国家自然科学基金项目 ; 中央高校基本科研业务费专项资金
项目资助者: NSFC ; LZU
语种: 英语
DOI: 10.1016/j.carbon.2016.10.036
ISSN号: 0008-6223
WOS记录号: WOS:000389555500057
第一机构:
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/185698
Appears in Collections:物理科学与技术学院_期刊论文

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Recommended Citation:
Zhou JY,Chen, Jiayi,Han, Sheng,et al. Constructing optimized three-dimensional electrochemical interface in carbon nanofiber/carbon nanotube hierarchical composites for high-energy-density supercapacitors[J]. Carbon,2017,111(null):502-512.
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