dc.contributor.authorSumboja, Afriyanti
dc.contributor.authorWang, Xu
dc.contributor.authorYan, Jian
dc.contributor.authorLee, Pooi See
dc.identifier.citationSumboja, A., Wang, X., Yan, J., & Lee, P. S. (2012). Nanoarchitectured current collector for high rate capability of polyaniline based supercapacitor electrode. Electrochimica Acta, 65, 190-195.en_US
dc.description.abstractIndium tin oxide (ITO) nanowires array was used as current collector and building block for polyaniline based supercapacitor. Thin polyaniline coating was deposited on the nanowires and resulted in the formation of polyaniline ITO coaxial nanowires. This hybrid heterostructure design improved the specific capacitance, rate capability, and cycling stability of the supercapacitor electrode. Good conductivity harnessed by these directly grown ITO nanowires is useful to improve the charge transport during the charge discharge processes which were confirmed by the electrochemical impedance spectroscopy measurement. Electrochemical test in 1 M H2SO4 at 4 A g−1 delivered specific capacitance as high as 738 F g−1. In addition, sub-micron size of the intercoaxial nanowires spacing ensures the fast penetration of electrolyte ions which resulted in the superior rate capability (98% capacitance retention when applied current was varied from 4 to 25 A g−1). The capacitance retention is significantly higher as compared to other polyaniline composite electrodes and it is one of the best reported performances to date for polyaniline based supercapacitor electrodes. This work illustrates a promising platform that can be adopted for other redox nanocomposite materials while reaping the benefit as low cost and binder free electrode material for supercapacitor application.en_US
dc.relation.ispartofseriesElectrochimica actaen_US
dc.rights© 2012 Elsevier Ltd.en_US
dc.titleNanoarchitectured current collector for high rate capability of polyaniline based supercapacitor electrodeen_US
dc.typeJournal Article
dc.contributor.researchTemasek Laboratoriesen_US
dc.contributor.schoolSchool of Materials Science and Engineeringen_US

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