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|Title:||α-Fe 2O 3 nanotubes-reduced graphene oxide composites as synergistic electrochemical capacitor materials|
|Citation:||Lee, K.K., Deng, S., Fan, H.M., Mhaisalkar, S., Tan, H.R., Tok, E.S., Loh, K.P., Chin, W.S., Sow, C.H. (2012-04-28). α-Fe 2O 3 nanotubes-reduced graphene oxide composites as synergistic electrochemical capacitor materials. Nanoscale 4 (9) : 2958-2961. ScholarBank@NUS Repository. https://doi.org/10.1039/c2nr11902a|
|Abstract:||We present a facile approach for the fabrication of a nanocomposite comprising α-Fe 2O 3 nanotubes (NTs) anchored on reduced graphene oxide (rGO) for electrochemical capacitors (ECs). The hollow tubular structure of the α-Fe 2O 3 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 (∼7 times) than α-Fe 2O 3 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. © 2012 The Royal Society of Chemistry.|
|Appears in Collections:||Staff Publications|
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