期刊
ELECTROCHIMICA ACTA
卷 105, 期 -, 页码 110-114出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2013.04.170
关键词
Anode materials; Cobalt oxide; Lithium ion battery; Mesoporous carbon nanotubes
资金
- WCU (World Class University) program through the National Research Foundation of Korea
- Ministry of Education, Science and Technology [R31-10013]
Vertically aligned mesoporous carbon nanotubes (MCTs) filled with Co3O4 nanoparticles (NPs) were fabricated by a dual template method; a hard template-assisted sol-gel process. The Co3O4/MCT electrode was characterized by scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The data indicate that the Co3O4 NPs are dispersed uniformly on the inside surface of the MCT. As an anode material for a Li ion battery, the resulting electrode shows a high reversible capacity of about 627 mA h g(-1) after the 50th discharge. The improved electrochemical performance of Co3O4/MCT can mainly be attributed to the small-size Co3O4 NPs and the rapid diffusion of Li-ions induced by the three-dimensional structure of the MCT. The Co3O4/MCT electrode has the potential for use as a high-performance anode electrode for Li-ion batteries. (c) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.
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