Rapid hydrothermal synthesis of VO2 (B) and its conversion to thermochromic VO2 (M1)

Srinivasa Rao Popuri, Marinela Miclau, Alla Artemenko, Christine Labrugere, Antoine Villesuzanne, Michael Pollet

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Abstract

The present study provides a rapid way to obtain VO2 (B) under economical and environmentally friendly conditions. VO2 (B) is one of the well-known polymorphs of vanadium dioxide and is a promising cathode material for aqueous lithium ion batteries. VO2 (B) was successfully synthesized by rapid single-step hydrothermal process using V2O5 and citric acid as precursors. The present study shows that phase-pure VO2 (B) polytype can be easily obtained at 180 degrees C for 2 h and 220 degrees C for 1 h, that is, the lowest combination of temperature and duration reported so far. The obtained VO2 (B) is characterized by X-ray powder diffraction, high resolution scanning electron microscopy, and Fourier transform infrared spectroscopy. In addition, we present an indirect way to obtain VO2 (M1) by annealing VO2 (B) under vacuum for 1 h.

Original languageEnglish
Pages (from-to)4780-4785
Number of pages6
JournalInorganic Chemistry
Volume52
Issue number9
DOIs
Publication statusPublished - 6 May 2013

Keywords

  • ELECTROCHEMICAL-BEHAVIOR
  • PHASE-TRANSFORMATION
  • NANOCRYSTALLINE VO2
  • LITHIUM BATTERIES
  • NANOBELTS
  • NANORODS
  • TRANSITION
  • DIFFRACTION
  • SYSTEM
  • V2O5

Cite this

Popuri, S. R., Miclau, M., Artemenko, A., Labrugere, C., Villesuzanne, A., & Pollet, M. (2013). Rapid hydrothermal synthesis of VO2 (B) and its conversion to thermochromic VO2 (M1). Inorganic Chemistry, 52(9), 4780-4785. https://doi.org/10.1021/ic301201k