Journal
NANO LETTERS
Volume 12, Issue 11, Pages 5616-5621Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl3027372
Keywords
Carbon nanotubes; carbon nanocups; energy storage; supercapacitor; high surface area
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Funding
- U.S. Army Research Laboratory/Army Research Office [W911NF]
- Exotic Nanocarbons, Japan Regional Innovation Strategy Program by the Excellence, JST
- Army Research Office
- Nano Japan
- NSF
- Rice University
- U.S. Department of Defense: U.S. Air Force Office of Scientific Research [FA9550-12-1-0035]
- NSF [0940902]
- Ministry of Knowledge Economy, Republic of Korea
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Here, we design and develop high-power electric double-layer capacitors (EDLCs) using carbon-based three dimensional (3-D) hybrid nanostructured electrodes. 3-D hybrid nanostructured electrodes consisting of vertically aligned carbon nanotubes (CNTs) on highly porous carbon nanocups (CNCs) were synthesized by a combination of anodization and chemical vapor deposition techniques. A 3-D electrode-based supercapacitor showed enhanced areal capacitance by accommodating more charges in a given footprint area than that of a conventional CNC-based device.
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