Nanotech 2012 Vol. 3
Nanotech 2012 Vol. 3
Nanotechnology 2012: Bio Sensors, Instruments, Medical, Environment and Energy (Volume 3)

Energy Storage, Novel Generation & Nano Materials Chapter 8

High Energy Density Supercapacitor Based on a Hybrid Carbon Nanotube - Reduced Graphite Oxide Architecture

Authors: E. Bekyarova, P. Ramesh, N. Jha, M.E. Itkis, R.C. Haddon

Affilation: Carbon Solutions Inc, United States

Pages: 647 - 650

Keywords: single wall carbon nanotubes, reduced graphite oxide, supercapacitor, synergistic effect energy density

Abstract:
We report a high energy supercapacitor device that utilizes hybrid carbon electrodes and the ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF¬4) as an electrolyte. The hybrid electrodes were prepared from reduced graphite oxide (rGO) and purified single walled carbon nanotubes (SWNTs). A simple casting technique gives a hybrid structure with optimum porosity and functionality that provides high energy and power density. The combination of SWNT and rGO in a weight ratio of 1:1 was found to afford specific capacitance of 222 F/g and energy density of 94 Wh/kg at room temperature.


ISBN: 978-1-4665-6276-9
Pages: 818
Hardcopy: $209.95