Chemical Research in Chinese Universities ›› 2014, Vol. 30 ›› Issue (3): 521-526.doi: 10.1007/s40242-014-3379-5

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Pine Needle-like Nanocomposite:Supercritical CO2 Assisted Polythiophene Synthesis on Carbon Nanotubes

LÜ Leilei, CHEN Zhimin, XU Guiheng, ZHANG Jianan, XU Qun   

  1. College of Material Science and Engineering, Zhengzhou University, Zhengzhou 450052, P. R. China
  • Received:2013-09-09 Revised:2013-12-01 Online:2014-06-01 Published:2013-12-19
  • Contact: XU Qun E-mail:qunxu@zzu.edu.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China(Nos.51173170, 50955010, 20974102), the Innovation Talents Award of Henan Province, China(No.114200510019) and the Program for New Century Excellent Talents(NCET) in University of China(No.NCET-08-0667).

Abstract:

A facile method was successfully developed to prepare a "pine needle-like" nanocomposite of carbon nanotubes/polythiophene(CNTs/PTh) in ethanol with the assistance of supercritical CO2(SC CO2). The experiment conditions such as mass ratio of thiophene monomer to carbon nanotubes, reaction temperature, and reaction time were optimized, and the morphology and thickness of PTh layers on CNTs were hence effectively controlled. The results of Fourier transform infrared(FTIR) spectra, X-ray photoelectron spectra(XPS) and Raman spectra indicate the π-π interactions between PTh and CNT. A possible formation mechanism about the unique microstructure was suggested by virtue of the morphological evolution of the nanocomposite. As a facile, environment benign, and adjustable method, the proposed method holds great potential in the preparation of functional hybrid nanocomposites with the help of SC CO2, which will be promising in the fields of nanofabrication and electrochemical device preparation.

Key words: Carbon nanotube, Polythiophene, Supercritical CO2, Nanocomposite