BiVO4/RGO hybrid nanostructure for high performance electrochemical supercapacitor

Chinnasamy Sengottaiyan, Noordeen Abdul Kalam, Ramasamy Jayavel, Rekha Goswami Shrestha, Thiyagu Subramani, Sambasivam Sankar, Jonathan P. Hill, Lok Kumar Shrestha, Katsuhiko Ariga

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)


Here we report electrochemical supercapacitance performance of a hybrid binary composite material composed of hierarchical bismuth vanadate (BiVO4) crystals embedded in reduced graphene oxide (RGO) sheets prepared by a one-pot hydrothermal method. The resulting BiVO4/RGO composite material was characterized by powder X-ray diffraction, scanning and transmission electron microscopy, Raman scattering, Fourier transformed infrared and X-ray photoelectron spectroscopy. Cyclic voltammetry and chronopotentiometry charge/discharge measurements revealed that the BiVO4/RGO hybrid composite structure exhibits superior electrochemical performance with a specific capacitance of 484 F g−1 at a scan rate of 5 mV s−1 and 343 F g−1 at current density of 1 A g−1 as well as excellent cycling stability sustaining about 87% of the initial capacitance after 2000 charge/discharge cycles at 10 A g−1. These results indicate that this BiVO4/RGO hybrid material could be suitable as a supercapacitor electrode material for energy storage applications.

Original languageEnglish
Pages (from-to)409-418
Number of pages10
JournalJournal of Solid State Chemistry
Publication statusPublished - Jan 2019
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry


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