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Preparation of uniform carbon nanoshell coated monodispersed ironoxide nanocrystals as an anode material for lithium-ion batteries

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Title
Preparation of uniform carbon nanoshell coated monodispersed ironoxide nanocrystals as an anode material for lithium-ion batteries
Author(s)
Hyun Sik Kim; Soon Gu Kwon; Soon Hyung Kang; Yuanzhe Piao; Sung Yung Eun
Publication Date
2014-08
Journal
ELECTROCHIMICA ACTA, v.136, no., pp.47 - 51
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Abstract
In this paper, we present a simple method for scalable synthesis of uniform carbon nanoshell coatedmonodispersed iron oxide nanocrystals and report on the electrochemical performances of suchnanocomposites. The structure and morphology of the resulting nanocomposites are investigated withX-ray powder diffraction (XRD) and transmission electron microscopy (TEM). Cyclic voltammetry (CV)and cyclic test of the nanocomposites as an anode material for lithium ion batteries are also studied. Themagnetite-C nanostructured material have a very high specific capacity of 859 mAh g−1in the initial cycleand high capacity retention out to 50 cycles at a constant current density of 100 mA/g, showing its poten-tial as an anode material in lithium-ion batteries. The superior electrochemical characteristics are a resultof the uniform distribution of magnetite nanoparticles, proper nanostructure, and good conductivity aswell as the prevention of aggregation by the carbon nanoshell during cycling.
URI
https://pr.ibs.re.kr/handle/8788114/930
ISSN
0013-4686
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
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