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Effect of catalyst on structure of (PEO)8LiClO4-SiO2 composite polymer electrolyte films

  • Chun-yue Pan (潘春跃)Email author
  • Qian Zhang (张 倩)
  • Qing Feng (冯 庆)
  • Jin-huan Gao (高金环)
  • You-man Zhao (赵悠曼)
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Abstract

(PEO)8LiClO4-SiO2 composite polymer electrolytes(CPEs) were prepared by in-situ reaction, in which ethyl-orthosilicate (TEOS) was catalyzed by HCl and NH3·H2O, respectively. The ionic conductivity, the contact angle and the morphology of inorganic particles in the CPEs were investigated by AC impedance spectra, contact angle method and TEM. The conductivities of acid-catalyzed CPE and alkali-catalyzed CPE are 2.2×10−5 and 1.1×10−5 S/cm respectively at 30 °C. The results imply that the catalyst plays an important role in the structure of in-situ preparation of SiO2, and influences the surface energy and conductivity of CPE films directly. Meanwhile, the ionic conductivity is related to the surface energy.

Key words

PEO(polyethylene oxide) SiO2 composite polymer electrolyte conductivity catalytic reaction 

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Copyright information

© Central South University Press and Springer-Verlag GmbH 2008

Authors and Affiliations

  • Chun-yue Pan (潘春跃)
    • 1
    Email author
  • Qian Zhang (张 倩)
    • 1
  • Qing Feng (冯 庆)
    • 1
  • Jin-huan Gao (高金环)
    • 1
  • You-man Zhao (赵悠曼)
    • 1
  1. 1.School of Chemistry and Chemical EngineeringCentral South UniversityChangshaChina

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