A Novel Keggin-type Monovanadium-substituted Polyoxometalate-based Electrolyte
DEStech Transactions on Computer Science and Engineering(2018)
Abstract
A novel Keggin-type polyoxometalate-based electrolyte, [TEAPS]4PW11VO40, has been synthesized by triethylamine containing 1-(3-sulfonic group) propyl (TEAPS) and monovanadium-substituted Keggin heteropoly acid (H4PW11VO40) and characterized by IR, UV, XRD, TG-DTA. The product is solid state with high viscosity at room temperature and it shows a phase transition as the temperature is raised. It exhibits high conductivity (3.90×10-3 S·cm-1 at 83 °C and 30% relative humidity), with a conductive activation energy of 23.78 kJ·mol-1. In the range of measured temperature, its conductivity increases with higher temperature.
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Key words
electrolyte,keggin-type,monovanadium-substituted,polyoxometalate-based
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