Carbon Nanotube鈥揘anocup Hybrid Structures for High Power Supercapacitor Applications
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- 作者：Myung Gwan Hahm ; Arava Leela Mohana Reddy ; Daniel P. Cole ; Monica Rivera ; Joseph A. Vento ; Jaewook Nam ; Hyun Young Jung ; Young Lae Kim ; Narayanan T. Narayanan ; Daniel P. Hashim ; Charudatta Galande ; Yung Joon Jung ; Mark Bundy ; Shashi Karna ; Pulickel M. Ajayan ; Robert Vajtai
- 刊名：Nano Letters
- 出版年：2012
- 出版时间：November 14, 2012
- 年：2012
- 卷：12
- 期：11
- 页码：5616-5621
- 全文大小：370K
- 年卷期：v.12,no.11(November 14, 2012)
- ISSN：1530-6992
文摘
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.