Li electroactivity of iron (II) tungstate nanorods
- Li electroactivity of iron (II) tungstate nanorods
- 심현우; 조인선; 홍국선; 조원일; 김동완
- iron tungstate; nanorod; anode; lithium ion battery; electroactivity
- Issue Date
- VOL 21, NO 46, 465602-1-465602-6
- 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.
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