کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
195982 | 459828 | 2005 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Ion-conductive properties of mesoporous silica-filled composite polymer electrolytes Ion-conductive properties of mesoporous silica-filled composite polymer electrolytes](/preview/png/195982.png)
We have synthesized mesoporous silica (MPSi) as a novel type of inorganic filler for polyether-based electrolytes and have characterized the effect of addition on ionic conduction. Both poly(ethylene oxide) (PEO) and PMEO composites filled with MPSi showed higher ionic conductivity than the original and the composites filled with particle silica (pSiO2). It was considered that the increase is caused by the difference in the surface area between MPSi and pSiO2. In the PEO composites, the addition of MPSi gave rise to the reduction of crystal PEO and crystalline complex domains. The glass transition temperature of the PMEO composites increased with the addition of the MPSi, in spite that the conductivity increased with increasing the filler contents. It has been suggested that the Lewis acid–base interactions between ions, ether chains and filler surface strongly affect on the ionic conduction in the composite electrolytes.
Journal: Electrochimica Acta - Volume 50, Issue 19, 30 June 2005, Pages 3949–3954