Journal of Materials Science

, Volume 44, Issue 3, pp 849–854 | Cite as

Preparation and electrical conductivity of SiO2/polypyrrole nanocomposite

  • Qunwei Tang
  • Xiaoming Sun
  • Qinghua Li
  • Jianming Lin
  • Jihuai Wu


In the present study we have chemically polymerized silica/polypyrrole (SiO2/PPy) nanocomposite in the presence of sodium dodecyl benzene sulfate (SDBS) as dopant and iron chloride (FeCl3) as oxidant. The SiO2/PPy nanocomposite presents an electrical conductivity of 32.41 S cm−1 and percolation threshold of 20 wt%. The resulting SiO2/PPy nanocomposites have been extensively characterized in terms of their molecular structure, particle size, morphology, stability, and electroactivity. These SiO2/PPy particles have a rather polydisperse morphology. The effects of synthesis parameters such as oxidant, PPy, SDBS, reaction temperature and time, on the electrical conductivity of the nanocomposite have been detailedly optimized. And the conducting nanocomposite presented a good environmental stability.


Pyrrole LiClO4 Acetonitrile Solution SiO2 Particle Inorganic Oxide 



The authors thank for jointly support by the National Natural Science Foundation of China (No. 50572030), the Specialized Project of Fujian Province (Nos. 2005HZ01-4, 2007HZ0001-3), the Key Project of Chinese Ministry of Education.(No. 206074), and Specialized Research Fund for the Doctoral Program of Chinese Higher Education (No. 20060385001).


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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Qunwei Tang
    • 1
  • Xiaoming Sun
    • 1
  • Qinghua Li
    • 1
  • Jianming Lin
    • 1
  • Jihuai Wu
    • 1
  1. 1.The Key Laboratory for Functional Materials of Fujian Higher Education Institute of Material Physical ChemistryHuaqiao UniversityQuanzhouChina

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