Facile fabrication of thermal-control ionic liquid compound based on undecatungstophosphoindic polyoxometalate with fast ionic conductivity

Abstract

Thermal-depended conductive properties of the ternary-POM-based layer-structure ionic liquid [TOAMe]4[In(H2O)PW11O39] was investigated. It shows fast ionic conductivity as high as 2.2 × 10−3 S cm−1 at 90 °C with the conductive activation energy of 30.19 kJ mol−1, which is related to its state, obviously increasing during the reversible phase transformation from a quasi-solid-state gel phase to an isotropic sol phase.