期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 222, 期 -, 页码 110-117出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2018.10.009
关键词
Bio-based polymer; Gel electrolyte; Polyurethane acrylate; Jatropha oil
资金
- UPM [9493600]
- MyBrain Scholarship, MOHE
Currently, there is a growing trend of using bio-based materials from renewable resources in the construction of polymer electrolytes. In this study, a gel polymer electrolyte from Jatropha oil-based polyurethane acrylate (PUA) was prepared by doping the PUA with various concentrations (0-30 weight%) of potassium iodide (KI) salt. The PUA gel electrolyte was characterized by Fourier-transform infrared spectrometry (FTIR), thermal analysis and electrochemical analysis was performed by using electrochemical impedance spectroscopy. Subsequently, the dielectric properties of the gel polymer electrolyte were studied. A conductivity of 1.59 x 10(-4) S cm(-1) was achieved for the PUA incorporated with 25 weight% KI at room temperature. The dielectric study indicated the non-Debye nature of the materials. It has been shown, via transference number measurement that the conducting species in this work were predominantly ions, with only 4% contribution from electrons. An electrochemical stability window of 2.0 V was obtained by using linear sweep voltammetry for the highest conducting gel electrolyte.
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