Journal
ELECTROCHIMICA ACTA
Volume 56, Issue 3, Pages 1366-1372Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2010.10.070
Keywords
Polyaniline nanorods; Functionalized carbon nanotubes; Electrochemical properties; Supercapacitors
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Funding
- Shanghai Municipal Science and Technology Commission [0852nm02000]
- National Natural Science Foundation of China [50773020]
- Shanghai Municipal Education Commission [11ZZ55]
- Shanghai Leading Academic Discipline Project [B502]
- Shanghai Key Laboratory Project [08DZ2230500]
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The novel composites of sulfonated multi-walled carbon nanotubes (sMWCNTs) modified polyaniline (PANI) nanorods (PANI/sMWCNTs) were synthesized successfully by in situ oxidative polymerization method in the HClO4 solution. FTIR and Raman spectra revealed the presence of pi-pi interaction between the PANI and the sulfonated carbon nanotubes and the formation of charge transfer composites. It was found that the specific capacitance of the PANI/sMWCNT composites was markedly influenced by their morphological structure and the content of PANI which was coated onto the sMWCNT. The specific capacitance of the PANI/sMWCNT composite exhibited a maximum value of 515.2 F g(-1) at the 76.4 wt% PANI. The charge-discharge tests showed the PANI/sMWCNT composites possessed a good cycling stability (below 10% capacity loss after 1000 cycles) compared to PANI nanorods. (C) 2010 Elsevier Ltd. All rights reserved.
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