High surface area, porous nanotube film supercapacitors.

Recently, I-H Kim \textit{et al.} [a] described high performance supercapacitors based on ruthenium oxide electrodeposited on multi-walled carbon nanotube mats. We recently developed a method for producing enhanced porosity single wall carbon nanotube (SWNT) films based on co-filtration of sacrificial nano-spheres and the SWNTs in the filtration based film fabrication. Here we follow Kim \textit{et al.} in electrodepositing ruthenium oxide onto the porous SWNT films. Performance of the devices will be discussed. a. I-H Kim, J-H Kim, Y-H Lee and K-B Kim J. Electrochem. Soc. 152, A2170 (2005)