Monodisperse Fe3O4 and γ-Fe2O3 Magnetic Mesoporous Microspheres as Anode Materials for Lithium-Ion Batteries

被引：209

作者：

Xu, Jing-San ^{[1
]}

Zhu, Ying-Jie ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2012年 / 4卷 / 09期

基金：

中国国家自然科学基金;

关键词：

iron oxide; Fe3O4; gamma-Fe2O3; mesoporous; microsphere; magnetic; lithium-ion battery; MESOSTRUCTURED METAL-OXIDES; ALPHA-FE2O3 HOLLOW SPHERES; IRON-OXIDES; ELECTRODE; DYE; DEGRADATION; TRANSITION; OXIDATION; PROPERTY; STRATEGY;

D O I：

10.1021/am301123f

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Monodisperse Fe3O4 and gamma-Fe2O3 magnetic mesoporous microspheres are prepared via a surfactant-free solvothermal combined with precursor thermal transformation method. The as-prepared Fe3O4 and gamma-Fe2O3 magnetic mesoporous microspheres have a relatively high specific surface area of 122.3 and 138.6 m(2)/g, respectively. The Fe3O4 and gamma-Fe2O3 magnetic mesoporous microspheres are explored as the anode materials for lithium-ion batteries, and they have a high initial discharge capacity of 1307 and 1453 mA h/g, respectively, and a good reversible performance (450 mA h/g for Fe3O4 and 697 mA h/g for gamma-Fe2O3 after 110 cycles) at the current density of 0.2C.

引用

页码：4752 / 4757

页数：6

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