Chai K L, Aung Min Min, Noor I M, Lim H N, Abdullah L C
Higher Education Centre of Excellence (HiCoE), Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia (UPM), 43400, Serdang, Selangor, Malaysia.
Department of Chemistry, Faculty of Science, Universiti Putra Malaysia (UPM), 43400, Serdang, Malaysia.
Sci Rep. 2022 Jan 7;12(1):124. doi: 10.1038/s41598-021-03965-7.
Jatropha oil-based polyurethane acylate gel polymer electrolyte was mixed with different concentrations of tetrabutylammonium iodide salt (TBAI). The temperature dependences of ionic conductivity, dielectric modulus and relaxation time were studied in the range of 298 to 393 K. The highest ionic conductivity of (1.88 ± 0.020) × 10 Scm at 298 K was achieved when the gel contained 30 wt% of TBAI and 2.06 wt% of I. Furthermore, the study found that conductivity-temperature dependence followed the Vogel-Tammann Fulcher equation. From that, it could be clearly observed that 30 wt% TBAI indicated the lowest activation energy of 6.947 kJ mol. By using the fitting method on the Nyquist plot, the number density, mobility and diffusion coefficient of the charge carrier were determined. The charge properties were analysed using the dielectric permittivity, modulus and dissipation factor. Apart from this, the stoke drag and capacitance were determined.
基于麻风树油的聚氨酯酰化物凝胶聚合物电解质与不同浓度的四丁基碘化铵盐（TBAI）混合。在298至393 K范围内研究了离子电导率、介电模量和弛豫时间的温度依赖性。当凝胶含有30 wt%的TBAI和2.06 wt%的I时，在298 K时实现了最高离子电导率（1.88±0.020）×10 S/cm。此外，研究发现电导率-温度依赖性遵循Vogel-Tammann-Fulcher方程。由此可以清楚地观察到，30 wt%的TBAI表明最低活化能为6.947 kJ/mol。通过在奈奎斯特图上使用拟合方法，确定了电荷载流子的数密度、迁移率和扩散系数。使用介电常数、模量和损耗因子分析了电荷特性。除此之外，还确定了斯托克斯阻力和电容。
