Synthesis of α-Fe2O3 dendrites by a hydrothermal approach and their application in lithium-ion batteries

被引：40

作者：

Pan, Qingtao ^{[1
]}

Huang, Kai ^{[1
]}

Ni, Shibing ^{[1
]}

Yang, Feng ^{[1
]}

Lin, Shumei ^{[1
]}

He, Deyan ^{[1
]}

机构：

[1] Lanzhou Univ, Dept Phys, Lanzhou 730000, Peoples R China

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2009年 / 42卷 / 01期

关键词：

MAGNETIC-PROPERTIES; ELECTROCHEMICAL PROPERTIES; ELECTRODE MATERIALS; IRON; OXIDES; NANOPARTICLES; SPECTROSCOPY; NANOTUBES; MOSSBAUER; CELLS;

D O I：

10.1088/0022-3727/42/1/015417

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Hematite alpha-Fe2O3 dendrites with lengths of 1-4.5 mu m along the trunk were synthesized by a low-temperature hydrothermal method. The morphology and the crystal structure of the final products were characterized. The magnetic evaluations showed that the as-prepared alpha-Fe2O3 dendrites have a high coercivity. The electrochemical performance as anode material for lithium-ion batteries was further evaluated by charge-discharge measurement. It was demonstrated that the material could provide an initial capacity of 1560 mA h g(-1), 1095 mA h g(-1) and 670 mA h g(-1) at a current density of 0.1 mA cm(-2), 0.2 mA cm(-2) and 1 mA cm(-2), respectively.

引用

页数：5

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