Synthesis of β-FeOOH and α-Fe2O3 nanorods and electrochemical properties of β-FeOOH

被引：200

作者：

Wang, X

Chen, XY

Gao, LS

Zheng, HG

Ji, MR

Tang, CM

Shen, T

Zhang, ZD ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China

[2] Univ Sci & Technol China, Struct Res Lab, Hefei 230026, Peoples R China

[3] Highstar Chem Power Source Co Ltd, Qidong 226200, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2004年 / 14卷 / 05期

关键词：

D O I：

10.1039/b310722a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

beta-FeOOH nanorods with a tunnel-type structure were synthesized via a hydrothermal method at low temperature and characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), thermal gravimetric analysis (TGA) and galvanostatic tests. From TEM bright-field images, a rodlike morphology with an average diameter of 30 +/- 5 nm and an average length of 400 nm (aspect ratio approximate to 13) is observed. Electrochemical tests show that thesew nanorods deliver a large discharge capacity of 275 mA h g(-1) vs. Li metal at 0.1 mA cm(-2) (voltage window 1.5-4.2 V). alpha-Fe2O3 nanorods with a regular pore structure were obtained by calcining the as-synthesized FeOOH at 520 degreesC.

引用

页码：905 / 907

页数：3

共 15 条

[1] β-FeOOH, a new positive electrode material for lithium secondary batteries [J].