• Complex
  • Title
  • Keyword
  • Abstract
  • Scholars
  • Journal
  • ISSN
  • Conference
成果搜索

author:

Zhu, Zhijin (Zhu, Zhijin.) [1] | Chen, Fuqiang (Chen, Fuqiang.) [2] | Yang, Mianfang (Yang, Mianfang.) [3] | Shao, Yanqun (Shao, Yanqun.) [4] | Li, Jiamei (Li, Jiamei.) [5] | Shen, Tongwei (Shen, Tongwei.) [6] | Chen, Yunxiang (Chen, Yunxiang.) [7] | Xia, Xiaojian (Xia, Xiaojian.) [8] | Wan, Xinyuan (Wan, Xinyuan.) [9] | Chen, Yaliang (Chen, Yaliang.) [10]

Indexed by:

SCIE

Abstract:

Owing to its distinctive structure and variable oxidation states, Tungstate-based oxides have become a highpotential electrode material for supercapacitors (SCs). However, the insufficient active sites and the slow kinetics of charge transport hinder its practical application in SCs fields. Doping anion has been demonstrated to be a feasible approach to improve the electrochemical performance of electrode materials. Herein, F-doped ZnWO4 (denoted as F-ZnWO4) with nanosheet arrays were synthesized on nickel foam by hydrothermal method. The effects of doping F on the microstructure and electrochemical properties of F-ZnWO4 are systematically studied. It provides additional ion transport channels for redox reactions, enhances the conductivity of the electrode material, and provides abundant active sites, thereby promoting the charge transfer kinetics of the electrode material. It indicates that doping F can reshape the morphology of F-ZnWO4, expand the lattice spacing and induce some oxygen vacancies (OV). Compared with ZnWO4, the Ov concentrations of F-ZnWO4-2 increase from 20.10 % to 36.29 %. F-ZnWO4-2 electrode has a specific capacitance of 1450.0 F/g at a current density of 1 A/g and retains a capacitance of 1353.1 F/g even at a higher current density of 10 A/g. The assembled F-ZnWO4-2// RuO2-ZnO asymmetric supercapacitor (ASC) exhibits an energy density of 37.4 Wh/kg and a corresponding power density of 831.4 W/kg. Two series-connected ASCs can lighten six LED lights for 6 min. It provides a way to further develop low-capacitance metal oxide materials in the field of electrochemical energy storage.

Keyword:

Asymmetric supercapacitors F-doped ZnWO4 Nanosheet array structure Oxygen vacancies

Community:

  • [ 1 ] [Zhu, Zhijin]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 2 ] [Chen, Fuqiang]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 3 ] [Shao, Yanqun]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 4 ] [Li, Jiamei]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 5 ] [Shen, Tongwei]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 6 ] [Shao, Yanqun]Fuzhou Univ, Zhicheng Coll, Fuzhou 350002, Fujian, Peoples R China
  • [ 7 ] [Yang, Mianfang]Elect Power Res Inst State Grid Fujian Elect Power, Fuzhou 350007, Fujian, Peoples R China
  • [ 8 ] [Chen, Yunxiang]Elect Power Res Inst State Grid Fujian Elect Power, Fuzhou 350007, Fujian, Peoples R China
  • [ 9 ] [Xia, Xiaojian]Elect Power Res Inst State Grid Fujian Elect Power, Fuzhou 350007, Fujian, Peoples R China
  • [ 10 ] [Wan, Xinyuan]Elect Power Res Inst State Grid Fujian Elect Power, Fuzhou 350007, Fujian, Peoples R China
  • [ 11 ] [Chen, Yaliang]Fujian Yongzheng Engn Qual Inspect Co Ltd, Fuzhou 350010, Fujian, Peoples R China

Reprint 's Address:

  • [Shao, Yanqun]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China;;[Chen, Yunxiang]Elect Power Res Inst State Grid Fujian Elect Power, Fuzhou 350007, Fujian, Peoples R China

Show more details

Related Keywords:

Source :

JOURNAL OF ENERGY STORAGE

ISSN: 2352-152X

Year: 2025

Volume: 118

8 . 9 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

Online/Total:67/9998372
Address:FZU Library(No.2 Xuyuan Road, Fuzhou, Fujian, PRC Post Code:350116) Contact Us:0591-22865326
Copyright:FZU Library Technical Support:Beijing Aegean Software Co., Ltd. 闽ICP备05005463号-1