High capacity three-dimensional ordered macroporous CoFe2O4 as anode material for lithium ion batteries

被引：195

作者：

Li, Z. H. ^{[1
]}

Zhao, T. P. ^{[1
]}

Zhan, X. Y. ^{[1
]}

Gao, D. S. ^{[1
]}

Xiao, Q. Z. ^{[1
]}

Lei, G. T. ^{[1
]}

机构：

[1] Xiangtan Univ, Key Lab Environmentally Friendly Chem & Applicat, Coll Chem, Minist Educ, Xiangtan 411105, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2010年 / 55卷 / 15期

关键词：

Cobalt ferrite; Three-dimensional ordered macroporous; Template; Lithium ion battery; FERRITE THIN-FILMS; NEGATIVE-ELECTRODE; ELECTROCHEMICAL PROPERTIES; NANOSTRUCTURED MATERIALS; CONVERSION ELECTRODES; CATHODE MATERIALS; MANGANESE OXIDE; LI-STORAGE; PERFORMANCE; SPINEL;

D O I：

10.1016/j.electacta.2010.03.015

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A three-dimensional ordered macroporous (3DOM) cobalt ferrite (CoFe2O4) was prepared using polystyrene (PS) colloidal crystal template. The scanning electron microscopy (SEM) and the transmission electron microscopy (TEM) micrographs showed that the as-prepared CoFe2O4 material had a typical 3DOM structure, which was constructed with about 130 nm-sized macropores and 10-20 nm-sized walls The obtained CoFe2O4 material had a specific surface area of 66 67 m(2) g(-1), and could deliver a relatively high capacity of 702 mAh g(-1) (about double that of graphite) at a current density of 0.2 mA cm(-2) after 30 cycles. Owing to the 3DOM nanoarchitecture. the as-prepared CoFe2O4 electrode exhibited a good rate performance The results suggest a promising application of the 3DOM CoFe2O4 as anode material for lithium ion batteries (C) 2010 Elsevier Ltd. All rights reserved

引用

页码：4594 / 4598

页数：5

共 45 条

[1] Changes in oxidation state and magnetic order of iron atoms during the electrochemical reaction of lithium with NiFe2O4 [J].