Conducting Polymer Functionalized Single-Walled Carbon Nanotubes: Synthesis, Morphological Characteristics and Thermal Stability

Abstract:

Nanocomposites of single-walled carbon nanotubes modified polypyrrole (PPy/SWNTs) were synthesized successfully by in situ oxidative polymerization method in the FeCl₃·6H₂O solution. The morphological structure, electrical conductivity and thermal stability of the nanocomposites were characterized by TEM, SEM, FTIR and TGA. The PPy/SWNTs were 50-100 nm in diameter of PPy coating uniformly on the surface of the SWNTs. FTIR spectra revealed the presence of covalently interaction between the PPy and the carbon nanotubes. The electrical conductivity of PPy/SWNTs composite and pure PPy were 93 and 8.0×10^-3 S/cm, respectively. Meanwhile, the PPy/SWNTs composites possessed higher thermal stability (65.9 wt. % weight loss at 600 °C) compared to pure PPy (81.2 wt. % weight loss at 600 °C), the content of SWNTs was 15.3 wt. %.

• Periodical: Advanced Materials Research (Volumes 306-307)
• Pages: 1182-1185
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.306-307.1182
• Online since: August 2011
• Authors: Hong Mei Niu
• Keywords: In Situ Polymerization, Polypyrrole, Single-Walled Carbon Nanotube (SWCNT), Thermal Stability

References

[1] Z.Z. Zhu, G.C. Wang, M.Q. Sun, X.W. Li and C.Z. Li: Electrochimica Acta Vol. 56 (2011), p.1366.

[2] L.L. Zhang and X.S. Zhao: Chem. Soc. Rev. Vol. 38 (2009), p.2520.

[3] K.R. Reddya, B.C. Sin, K.S. Ryu, J.C. Kim, H. Chung and Y. Lee: Synthetic Metals Vol. 159 (2009), p.595.

[4] J.J. Park, D.M. Park, J.H. Youk, W.R. Yu and J. Lee: Carbon Vol. 48 (2010), p.2899.

[5] B. Gao, Q.B. Fu, L.H. Su, C.Z. Yuan and X.G. Zhang: Electrochimica Acta Vol. 55 (2010), p.2311.