Li electroactivity of iron (II) tungstate nanorods

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

Research output: Contribution to journalArticle

23 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

Fingerprint

Nanotubes
Nanorods
Anodes
Electrodes
Iron
Nanospheres
Graphite
Nanostructures
High resolution transmission electron microscopy
Transmission Electron Microscopy
Nanostructured materials
Surface-Active Agents
Field emission
Electron Scanning Microscopy
Cyclic voltammetry
Surface active agents
Diffraction
X-Rays
Ions
X rays

ASJC Scopus subject areas

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

Cite this

Li electroactivity of iron (II) tungstate nanorods. / Shim, Hyun Woo; Cho, In Sun; Hong, Kug Sun; Cho, Won Il; Kim, Dong-Wan.

In: Nanotechnology, Vol. 21, No. 46, 465602, 19.11.2010.

Research output: Contribution to journalArticle

Shim, Hyun Woo ; Cho, In Sun ; Hong, Kug Sun ; Cho, Won Il ; Kim, Dong-Wan. / Li electroactivity of iron (II) tungstate nanorods. In: Nanotechnology. 2010 ; Vol. 21, No. 46.
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