By combining the powers of two single-atom-thick carbon structures, researchers at the George Washington University's Micro-propulsion and Nanotechnology Laboratory have created a new ultracapacitor that is both high performance and low cost.
The device, described in the Journal of Applied Physics, capitalizes on the synergy brought by mixing graphene flakes with single-walled carbon nanotubes, two carbon nanostructures with complementary properties.
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"Paper-based ultracapacitors with carbon nanotubes-graphene composites" by Jian Li, Xiaoqian Cheng, Jianwei Sun, Cameron Brand, Alexey Shashurin, Mark Reeves and Michael Keidar, Journal of Applied Physics April 22, 2014 DOI: 10.1063/1.4871290 . http://scitation.aip.org/content/aip/journal/jap/115/16/10.1063/1.4871290
Graphene and carbon nanotubes used to fabricate inexpensive high performing ultracapacitors
