ELECTRICAL PROPERTY STUDIES ON HOT-PRESS SYNTHESIZED NANO-COMPOSITE POLYMER ELECTROLYTE (NCPE) MEMBRANES: 70PEO:30 MgSO4+zSiO2
Poly (ethylene oxide) PEO based Nano-Composite Polymer Electrolyte (NCPE) membranes: (70PEO: 30MgSO4)+xSiO2, where x=0, 1, 2, 3, 4, 5, 7, 8, 10 wt.(%), have been casted by hot-press (extrusion) technique. Nano sized (～8nm) SiO2 particles have been used as Iind-phase dispersoid filler material and Solid Polymer Electrolyte (SPE) in the composition: (70PEO: 30MgSO4) as Ist-phase polymer electrolyte host. In a separate study, Ist-phase SPE host, also casted by hot-press method, exhibited highest room temperature ionic conductivity (冦rt)～3.71×10-7 Scm-1.As a consequence of SiO2 dispersal, a conductivity enhancement of an order of magnitude has been further achieved in the NCPE composition: 70PEO: 30MgSO4+5 SiO2 with σrt～3.23×10-6 Scm-1.This has been referred to as Optimum Conducting Composition (OCC) NCPE film. The ion transport mechanism in NCPE OCC has been discussed in terms of basic ionic parameters viz. ionic conductivity (σ), ionic mobility (μ), mobile ion concentration (n), ionic transference number (tion) etc. The conductivity as a function of temperature has also been studied and the activation energy (Ea) has been computed by linear least square fitting of log σ-1/T Arrhenius plot.
R. C. AGRAWAL Y. K. MAHIPAL REHANA ASHRAFI
Solid State Ionics Research Laboratory, School of Studies in Physics & Astrophysics, Pt.Ravishankar Shukla University, Raipur – 492010, India
国际会议
The 12th Asian Conference on Solid State Ionics(第十二届亚洲固态离子学会议暨第十五届中国固态离子学会议)
武汉
英文
874-879
2010-05-02（万方平台首次上网日期，不代表论文的发表时间）