Nano vanadium nitride incorporated onto interconnected porous carbon via the method of surface-initiated electrochemical mediated ATRP and heat-treatment approach for supercapacitors
Ran, Fen1,2; Wang, Zhen2; Yang, Yunlong2; Liu, Zhen3; Kong, Lingbin1,2; Kang, Long1,2
2017-12-20
发表期刊ELECTROCHIMICA ACTA
ISSN0013-4686
卷号258页码:405-413
摘要A negative electrode material of nano vanadium nitride/interconnected porous carbon (Nano-VN/IPC) is fabricated via a novel method combining surface-initiated electrochemical mediated ATRP and heat-treatment process. The structural and composition characterization display that a low crystallinity of VN nanoparticles is obtained, which distributes uniformly in the interconnected pores of the carbon scaffold materials. The high-distribution of nano-VN particles in the interconnected pores significantly enhances the usage efficiency of the electrochemistry-active materials to ensure the high electrochemical performance of the electrode materials. The interconnected pore structure is convenient for diffusion and transfer of electrolyte ions during charging-discharging process. The Nano-VN/IPC electrodes exhibit a high specific capacitance of 284.0 F/g at 0.5 A/g in 2 M KOH aqueous electrolyte with a low resistance and good rate capability. In addition, an asymmetric supercapacitor is assembled with Ni(OH)(2) and Nano-VN/IPC electrodes as the positive and negative electrodes. The device presents a high specific capacitance of 122 F/g at the current density of 0.5 A/g, and when the current density increases to 5 A/g the capacitance still remains 70 F/g. Remarkably, the device delivers an ultrahigh power density of 35.6 Wh/kg at a power density of 362.5 W/kg. (c) 2017 Elsevier Ltd. All rights reserved.
关键词Vanadium nitride Asymmetric supercapacitors Carbon materials Negative electrode
DOI10.1016/j.electacta.2017.11.076
收录类别SCI ; SCIE
语种英语
资助项目Program for Hongliu Distinguished Young Scholars in Lanzhou University of Technology[J201402]
WOS研究方向Electrochemistry
WOS类目Electrochemistry
WOS记录号WOS:000418324800046
出版者PERGAMON-ELSEVIER SCIENCE LTD
EI入藏号20174704442808
EI主题词Electrochemical electrodes
EI分类号405.1 Construction Equipment - 537.1 Heat Treatment Processes - 701.1 Electricity: Basic Concepts and Phenomena - 801.4.1 Electrochemistry - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 931.2 Physical Properties of Gases, Liquids and Solids
引用统计
被引频次:26[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/32962
专题省部共建有色金属先进加工与再利用国家重点实验室
材料科学与工程学院
外国语学院
通讯作者Ran, Fen
作者单位1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China;
2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China;
3.Frostburg State Univ, Dept Phys & Engn, Frostburg, MD 21532 USA
第一作者单位省部共建有色金属先进加工与再利用国家重点实验室;  材料科学与工程学院
通讯作者单位省部共建有色金属先进加工与再利用国家重点实验室;  材料科学与工程学院
第一作者的第一单位省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式
GB/T 7714
Ran, Fen,Wang, Zhen,Yang, Yunlong,et al. Nano vanadium nitride incorporated onto interconnected porous carbon via the method of surface-initiated electrochemical mediated ATRP and heat-treatment approach for supercapacitors[J]. ELECTROCHIMICA ACTA,2017,258:405-413.
APA Ran, Fen,Wang, Zhen,Yang, Yunlong,Liu, Zhen,Kong, Lingbin,&Kang, Long.(2017).Nano vanadium nitride incorporated onto interconnected porous carbon via the method of surface-initiated electrochemical mediated ATRP and heat-treatment approach for supercapacitors.ELECTROCHIMICA ACTA,258,405-413.
MLA Ran, Fen,et al."Nano vanadium nitride incorporated onto interconnected porous carbon via the method of surface-initiated electrochemical mediated ATRP and heat-treatment approach for supercapacitors".ELECTROCHIMICA ACTA 258(2017):405-413.
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