Li electroactivity of iron (II) tungstate nanorods

Hyun Woo Shim, In Sun Cho, Kug Sun Hong, Won Il Cho, Dong-Wan Kim

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26 Citations (Scopus)

Abstract

We herein report the first application of a divalent iron tungstate (FeWO4) nanostructured material, with a wolframite structure, to a Li-ion battery anode. The FeWO4 nanospheres and nanorods were synthesized at 180 °C without any surfactants or templates via a facile hydrothermal process by simply adjusting the pH. The resulting nanopowders were characterized using x-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), and Brunauer-Emmett-Teller (BET) measurements. Furthermore, we evaluated the Li electroactivity of the FeWO4 nanorods using cyclic voltammetry and observed that their reversible capacity was over 500 mAh g-1 after 20 cycles, which proved much higher than that of graphite-based anodes.

Original languageEnglish
Article number465602
JournalNanotechnology
Volume21
Issue number46
DOIs
Publication statusPublished - 2010 Nov 19
Externally publishedYes

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ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

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