Journal of Advanced Ceramics

, Volume 7, Issue 3, pp 246–255 | Cite as

Electrospun polyporous VN nanofibers for symmetric all-solid-state supercapacitors

  • Dandan Zhang
  • Jing Li
  • Zhen Su
  • Sanyuan Hu
  • Heping LiEmail author
  • Youwei Yan
Open Access
Research Article


To promote the energy density of symmetric all-solid-state supercapacitors (SCs), efforts have been dedicated to searching for high-performance electrode materials recently. In this paper, vanadium nitride (VN) nanofibers with mesoporous structure have been fabricated by a facile electrospinning method. Their crystal structures and morphology features were characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The mesoporous structure of VN nanofibers, which can provide short electrolyte diffusion routes and conducting electron transport pathways, is beneficial to their performance as a supercapacitor electrode. Under a stable electrochemical window of 1.0 V, VN nanofibers possess an excellent mass specific capacitance of 110.8 F/g at a scan rate of 5 mV/s. Moreover, the VN nanofibers were further assembled into symmetric all-solid-state SCs, achieving a high energy density of 0.89 mW·h/cm3 and a high power density of 0.016 W/cm3 over an operating potential range from 0 to 1.0 V. These results demonstrate that VN nanofibers could be potentially used for energy storage devices.


vanadium nitride (VN) mesoporous structure nanofiber supercapacitors (SCs) electrospinning 



This study was supported by the Young Elite Scientists Sponsorship Program by CAST (Grant No. 2017QNRC001) and the National Natural Science Foundation of China (Grant No. 51402116). The authors thank the Analytical and Testing Center of Huazhong University of Science and Technology for support, specially appreciating Mr. Zhao for the help of TEM analysis.

Supplementary material

40145_2018_276_MOESM1_ESM.pdf (882 kb)
Electrospun polyporous VN nanofibers for symmetric all‐solid‐state supercapacitors


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Copyright information

© The Author(s) 2018

Authors and Affiliations

  • Dandan Zhang
    • 1
  • Jing Li
    • 1
  • Zhen Su
    • 1
  • Sanyuan Hu
    • 1
  • Heping Li
    • 1
    Email author
  • Youwei Yan
    • 1
  1. 1.State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhanChina

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