Li electroactivity of iron (II) tungstate nanorods

Title
Li electroactivity of iron (II) tungstate nanorods
Authors
심현우조인선홍국선조원일김동완
Keywords
iron tungstate; nanorod; anode; lithium ion battery; electroactivity
Issue Date
2010-11
Publisher
Nanotechnology
Citation
VOL 21, NO 46, 465602-1-465602-6
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.
URI
http://pubs.kist.re.kr/handle/201004/39133
ISSN
0957-4484
Appears in Collections:
KIST Publication > Article
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