自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 15    No. 4    August 2008

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Effect of catalyst on structure of (PEO)8LiClO4-SiO2 composite polymer electrolyte films
PAN Chun-yue(潘春跃), ZHANG Qian(张 倩), FENG Qing(冯 庆),
GAO Jin-huan(高金环), ZHAO You-man(赵悠曼)

School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, china

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 ℃. 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

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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