Facile one-step synthesis of 0D to 3D VOx nanostructures for energy storage

Linghui Peng, Di Li, Lingling Shen, Zichuan Liu, Weiren Fan, Hongbo Qiu, Aibing Yu, Xuchuan Jiang

Research output: Contribution to journalArticleResearchpeer-review

4 Citations (Scopus)


Vanadium oxides (VOx) and their related compounds have been received extensive attentions because of their special chemical and physical properties, which make them have a wide range of practical applications. VOx can offer high pseudocapacitance for energy storage due to its high electrochemical activity. Herein, 0D (nanoparticles), 1D (nanowires), 2D (nanosheets) & 3D (nanodonuts) VOx were successfully synthesized with assistance of glucose by a facile one-step hydrothermal method. The relationship between the structure and the electrochemical properties of VOx was investigated in detail. Among all the morphologies, the donut-like VOx displays the best pseudocapacitive performance under our reported conditions, with a specific capacitance as high as 225.8 F g−1 at a scan rate of 2 mV s−1. The synergy effect between multiple vanadium oxidation states (mixed-valence) and the donut-like geometry contributes to electrochemical properties. That is, the mixed-valence offers theoretical specific capacitance and the unique donut-like structure provides a more active surface and supported high-speed ionic and electronic transmission channels. The good electrochemical performance of the 0-3D VOx nanostructures indicates their high potential as electrode materials for supercapacitors.

Original languageEnglish
Article number139021
Number of pages10
JournalElectrochimica Acta
Publication statusPublished - 1 Oct 2021


  • Donut-like
  • Mechanism
  • Morphology
  • Supercapacitor
  • Three dimensions
  • Vanadium oxides

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