Carbon Nanotube–Nanocup Hybrid Structures for High Power Supercapacitor Applications
Nano Letters2012Vol. 12(11), pp. 5616–5621
Citations Over TimeTop 10% of 2012 papers
Myung Gwan Hahm, Arava Leela Mohana Reddy, Daniel P. Cole, Monica Rivera, Joseph Vento, Jaewook Nam, Hyun Young Jung, Young Lae Kim, Narayanan T. Narayanan, Daniel P. Hashim, Charudatta Galande, Yung Joon Jung, Mark Bundy, Shashi P. Karna, Pulickel M. Ajayan, Róbert Vajtai
Abstract
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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