Issue 11, 2010

High-surface-area α-Fe2O3/carbon nanocomposite: one-step synthesis and its highly reversible and enhanced high-rate lithiumstorage properties

Abstract

Hollow-structured α-Fe2O3/carbon (HIOC) nanocomposite with a high surface area of around 260 m2 g−1 was synthesized by a one-step, in situ, and industrially-oriented spray pyrolysis method using iron lactate and sucrose solution as the precursors. The small α-Fe2O3 nanocrystals were highly dispersed inside amorphous carbon to form a carbon nanocomposite. Electrochemical measurements showed that the carbon played an important role in affecting both the cycle life and the rate capability of the electrode. The HIOC composites showed the best electrochemical performance in terms of high capacity (1210 mAh g−1 at a current density of 0.1 C), enhanced rate capability and excellent cycle stability (720 mAh g−1 at a current density of 2 C up to 220 cycles). HIOC nanocomposite can also be used in other potential applications, such as in gas sensors, catalysts, and biomedical applications because it is easily dispersed in water and has a high surface area.

Graphical abstract: High-surface-area α-Fe2O3/carbon nanocomposite: one-step synthesis and its highly reversible and enhanced high-rate lithium storage properties

Supplementary files

Article information

Article type
Paper
Submitted
03 Nov 2009
Accepted
04 Dec 2009
First published
02 Feb 2010

J. Mater. Chem., 2010,20, 2092-2098

High-surface-area α-Fe2O3/carbon nanocomposite: one-step synthesis and its highly reversible and enhanced high-rate lithium storage properties

S. Chou, J. Wang, D. Wexler, K. Konstantinov, C. Zhong, H. Liu and S. Dou, J. Mater. Chem., 2010, 20, 2092 DOI: 10.1039/B922237E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements