Please use this identifier to cite or link to this item:
|Title:||Nitrogen-doped graphene hollow nanospheres as novel electrode materials for supercapacitor applications|
|Source:||Fan, W., Xia, Y.-Y., Tjiu, W.W., Pallathadka, P.K., He, C., Liu, T. (2013). Nitrogen-doped graphene hollow nanospheres as novel electrode materials for supercapacitor applications. Journal of Power Sources 243 : 973-981. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jpowsour.2013.05.184|
|Abstract:||Nitrogen-doped graphene hollow spheres (NGHS) have been prepared by a simple layer-by-layer assembly of graphene oxide (GO) and polyaniline (PANI) on polystyrene (PS) nanospheres, followed by calcination to remove the PS template and realize the carbonization of PANI. The resultant NGHS has a high nitrogen content of 8.7 atom%, in which various nitrogen species, such as pyridinic-N, pyrrolic-N, and quaternary-N, are detected. The hollow nanostructure of NGHS can provide high electroactive regions, while the effective nitrogen-doping of graphene can increase electron mobility and space charge capacitance. The specific capacitance of NGHS with four bilayers (NGHS-4bi) can reach 381 F g-1 at a current density of 1 A g-1. The greatly enhanced electrochemical performance can be ascribed to the synergistic effect of the hollow nanostructure and nitrogen-doping, suggesting that NGHS as novel electrode materials may have potential applications in high performance energy storage devices. © 2013 Elsevier Ltd. All rights reserved.|
|Source Title:||Journal of Power Sources|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jan 9, 2018
WEB OF SCIENCETM
checked on Jan 2, 2018
checked on Jan 12, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.