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

Xiong Wang; Xiangying Chen; Lisheng Gao; Huagui Zheng; Mingrong Ji; Chenming Tang; Tao Shen; Zude Zhang

doi:10.1039/B310722A

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Synthesis of β-FeOOH and α-Fe₂O₃nanorods and electrochemical properties of β-FeOOH

Xiong Wang,^a Xiangying Chen,^a Lisheng Gao,^a Huagui Zheng,^a Mingrong Ji,^b Chenming Tang,^c Tao Shen^c and Zude Zhang*^a

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* Corresponding authors

^a Department of Chemistry, University of Science and Technology of China, Hefei, People's Republic of China
E-mail: libchem@mail.ustc.edu.cn; wx@ustc.edu
Fax: 3601600
Tel: 86-551-3606144

^b Structure Research Laboratory, University of Science and Technology of China, Hefei, People's Republic of China

^c Highstar Chemical Power Source Co., Ltd., Qidong, People's Republic of China

Abstract

β-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 ≈ 13) is observed. Electrochemical tests show that thesew nanorods deliver a large discharge capacity of 275 mA h g⁻¹vs. Li metal at 0.1 mA cm⁻² (voltage window 1.5–4.2 V). α-Fe₂O₃ nanorods with a regular pore structure were obtained by calcining the as-synthesized FeOOH at 520 °C.

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Article information

DOI: https://doi.org/10.1039/B310722A
Article type: Paper
Submitted: 03 Sep 2003
Accepted: 05 Dec 2003
First published: 20 Jan 2004

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J. Mater. Chem., 2004,14, 905-907

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

X. Wang, X. Chen, L. Gao, H. Zheng, M. Ji, C. Tang, T. Shen and Z. Zhang, J. Mater. Chem., 2004, 14, 905 DOI: 10.1039/B310722A

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Journal of Materials Chemistry