Ru oxide/carbon nanotube composites for supercapacitors prepared by spontaneo…

a b s t r a c t A novel method based on spontaneous reduction of Ru(VI) and Ru(VII) is reported for the deposition of Ru oxide on multi-walled carbon nanotubes (MWCNT). Both purified and acid functionalized nanotubes (p-MWCNT and a-MWCNT) have been used to produce composite materials for use in high power aqueous supercapacitors. Specific capacitances of 213±16Fg−1 and 184±11Fg−1 were…