The potential of conducting polymer – Carbon nanotube composites as supercapacitor electrodes

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Authors
  1. Chow, C.
  2. Huber, T.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN);British Columbia Univ, Vancouver BC (CAN)
Abstract
Conducting polymer/carbon nanotube composites were prepared as possible materials for supercapacitor electrodes. An iterative process was first developed to remove metallic impurities from the carbon nanotubes, which was successful in removing at least 98% of the metal. Polyaniline-nanotube composites and their derivatives were prepared. Conductivities as high as 40 S/cm were recorded for polyaniline composites (59% nanotubes by weight), which is significantly higher than that of the parent materials. Efforts to prepare composites derived from 2-aminobenzoic acid (anthranilic acid) were met with limited success. In addition, acid functionalized nanotubes were utilized in the composite preparation, and the effect of functionalization on the conductivity was investigated. Not unexpectedly, composites with moderately functionalized nanotubes conducted half as well as those with unfunctionalized nanotubes, whereas composites of highly functionalized nanotubes displayed a range of conductivities.

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Keywords
conducting polymers;purification;polymerization;electrical conductivity;TGA;ICP-MS;characterization
Report Number
DRDC-ATLANTIC-TM-2007-320 — Technical Memorandum
Date of publication
01 Oct 2007
Number of Pages
46
DSTKIM No
CA031959
CANDIS No
530939
Format(s):
CD ROM

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