Li electroactivity of iron (II) tungstate nanorods

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

doi:10.1088/0957-4484/21/46/465602

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 journal › Article › peer-review

31 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 language	English
Article number	465602
Journal	Nanotechnology
Volume	21
Issue number	46
DOIs	https://doi.org/10.1088/0957-4484/21/46/465602
Publication status	Published - 2010 Nov 19
Externally published	Yes

ASJC Scopus subject areas

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

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title = "Li electroactivity of iron (II) tungstate nanorods",

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.",

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T1 - Li electroactivity of iron (II) tungstate nanorods

AU - Shim, Hyun Woo

AU - Cho, In Sun

AU - Hong, Kug Sun

AU - Cho, Won Il

AU - Kim, Dong Wan

PY - 2010/11/19

Y1 - 2010/11/19

N2 - 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.

AB - 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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Li electroactivity of iron (II) tungstate nanorods

Abstract

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