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Title: α-Fe2O3 nanotubes-reduced graphene oxide composites as synergistic electrochemical capacitor materials
Authors: Lee, K. K.
Tan, H. R.
Loh, K. P.
Chin, W. S.
Deng, Suzi
Fan, Hai Ming
Mhaisalkar, Subodh Gautam
Tok, Eng Soon
Sow, Chorng Haur
Issue Date: 2012
Source: Lee, K. K., Deng, S., Fan, H. M., Mhaisalkar, S. G., Tan, H. R., Tok, E. S., et al. (2012). α-Fe2O3 nanotubes-reduced graphene oxide composites as synergistic electrochemical capacitor materials. Nanoscale, 4(9), 2958-2961.
Series/Report no.: Nanoscale
Abstract: We present a facile approach for the fabrication of a nanocomposite comprising α-Fe2O3 nanotubes (NTs) anchored on reduced graphene oxide (rGO) for electrochemical capacitors (ECs). The hollow tubular structure of the α-Fe2O3 NTs presents a high surface area for reaction, while the incorporation of rGO provides an efficient two-dimensional conductive pathway to allow fast, reversible redox reaction. As a result, the nanocomposite materials exhibit a specific capacitance which is remarkably higher ([similar]7 times) than α-Fe2O3 NTs alone. In addition, the nanocomposites show excellent cycling life and large negative potential window. These findings suggest that such nanocomposites are a promising candidate as negative electrodes in asymmetrical capacitors with neutral electrolytes.
ISSN: 2040-3364
DOI: 10.1039/c2nr11902a
Rights: © 2012 The Royal Society of Chemistry.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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