Influence of the Concentration of Electrolyte on the Capacitive Properties of Vanadium Nitride Electrode for Electrochemical Capacitors

被引：19
|
作者：
Liu, Hong-hui [1 ,2 ,3 ]
Zhang, Hong-ling [2 ,3 ]
Xu, Hong-bin [2 ,3 ]
Lou, Tai-ping [1 ]
Sui, Zhi-tong [1 ]
Zhang, Yi [1 ,2 ,3 ]
机构：
[1] Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China
[2] Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
[3] Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydrometall Cleaner Prod Technol, Beijing 100190, Peoples R China
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2018年 / 165卷 / 02期
关键词：
CHARGE STORAGE; ENERGY-STORAGE; TIO2; ANATASE; THIN-FILMS; PERFORMANCE; SURFACE; PSEUDOCAPACITANCE; RUO2;
D O I：
10.1149/2.0461802jes
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Cyclic voltammetry and electrochemical impedance spectroscopy were applied to investigate the effect of the concentration of KOH solution on the capacitive performance of the nanostructured vanadium nitride. The results reveal that the required overpotential for the transformation of V2+ to V3+ in concentrated KOH solutions is much lower than that in diluted solutions, indicating that concentrated solutions are kinetically more favorable than diluted solutions. Additionally, a marked decrease in charge transfer resistance and electrolyte series resistance were observed as the concentration of KOH solution increased. Thus, the specific capacitance and the rate capability of the vanadium nitride electrode are improved with increasing of the concentration of KOH solution. Moreover, the specific capacitance of the vanadium nitride material in 6 M KOH solution is the highest, and the vanadium nitride material exhibits great long term stability in KOH solution. (C) 2018 The Electrochemical Society.
引用
收藏
页码：A97 / A103
页数：7
相关论文
共 50 条
  • [11] Electrode properties of defect-introduced graphene sheets for electrochemical capacitors using aqueous electrolyte
    Lee, Wonkyun
    Suzuki, Shinya
    Miyayama, Masaru
    ELECTROCHIMICA ACTA, 2014, 142 : 240 - 246
  • [12] Graphene/vanadium oxide nanotubes composite as electrode material for electrochemical capacitors
    Fu, Meimei
    Ge, Chongyong
    Hou, Zhaohui
    Cao, Jianguo
    He, Binhong
    Zeng, Fanyan
    Kuang, Yafei
    PHYSICA B-CONDENSED MATTER, 2013, 421 : 77 - 82
  • [13] Synthesis and Characterization of Vanadium Oxide Nanotubes as Electrode Materials for Electrochemical Capacitors
    Wei, Yiying
    Wang, Guoxiu
    Zhu, Jianguo
    ELECTROCHEMICAL CAPACITORS: FUNDAMENTALS TO APPLICATIONS, 2014, 58 (27): : 61 - 67
  • [14] Suitable Conditions for the Use of Vanadium Nitride as an Electrode for Electrochemical Capacitor
    Morel, Alban
    Borjon-Piron, Yann
    Lucio Porto, Raul
    Brousse, Thierry
    Belanger, Daniel
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2016, 163 (06) : A1077 - A1082
  • [15] The influence of ion concentration in the electrolyte on the performance of double layer capacitors
    Zheng, JP
    Jow, TR
    PROCEEDINGS OF THE SYMPOSIUM ON ELECTROCHEMICAL CAPACITORS II, 1997, 96 (25): : 280 - 288
  • [16] Electrochemical Properties of PANI as Single Electrode of Electrochemical Capacitors in Acid Electrolytes
    Zhu, Haihua
    Peng, Shunjin
    Jiang, Weijie
    SCIENTIFIC WORLD JOURNAL, 2013,
  • [17] Evaluation of the Properties of an Electrolyte Based on Formamide and LiTFSI for Electrochemical Capacitors
    Sekhar, Bongu Chandra
    Hachicha, Rahma
    Maffre, Marion
    Bodin, Charlotte
    le Vot, Steven
    Favier, Frederic
    Fontaine, Olivier
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2020, 167 (11)
  • [18] Improved electrochemical performance for vanadium flow battery by optimizing the concentration of the electrolyte
    Jing, Minghua
    Wei, Zengfu
    Su, Wei
    He, Hongxiang
    Fan, Xinzhuang
    Qin, Ye
    Liu, Jianguo
    Yan, Chuanwei
    JOURNAL OF POWER SOURCES, 2016, 324 : 215 - 223
  • [19] Influence of electrolyte characteristics on the electrochemical parameters of electrical double layer capacitors
    Lust, E
    Jänes, A
    Arulepp, M
    JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2004, 8 (07) : 488 - 496
  • [20] Influence of electrolyte characteristics on the electrochemical parameters of electrical double layer capacitors
    Enn Lust
    Alar Jänes
    Mati Arulepp
    Journal of Solid State Electrochemistry, 2004, 8 : 488 - 496
12345