期刊
NANO ENERGY
卷 2, 期 5, 页码 1025-1030出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2013.04.001
关键词
Super-capacitor; Carbon nanotube sponge; Polyaniline; Conductive network
类别
资金
- US National Science Foundation [0900188]
- Tsinghua University Initiative Scientific Research Program [2012Z02102]
- Beijing Natural Science Foundation [2122027]
We explored supercapacitor devices by utilizing 3-D highly porous (with average pore size of similar to 80 nm) carbon nanotube sponges as a conductive substrate for polyaniline deposition. The porous structure of the sponge is beneficial for precursor penetration and uniform deposition of polyaniline on to the nanotubes. The self-supported, free-standing and flexible carbon nanotube polyaniline composite structure does not require any conductive additives or mechanical binders and delivers excellent areal capacitance (1.85-1.62 F/cm(2) in the 4.9-49 mA/cm(2) current density range) coupled with high rate capability and cycle stability. (C) 2013 Elsevier Ltd. All rights reserved.
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