Lanzhou University of Technology Institutional Repository (LUT_IR)
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 |
ISSN | 0013-4686 |
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 |
DOI | 10.1016/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 | |
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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