Hadi Jihad M, Aziz Shujahadeen B, R Saeed Salah, Brza Mohamad A, Abdulwahid Rebar T, Hamsan Muhamad H, M Abdullah Ranjdar, Kadir Mohd F Z, Muzakir S K
Department of Medical Laboratory of Science, College of Health Sciences, University of Human Development, Kurdistan Regional Government, Sulaimani 46001, Iraq.
Hameed Majid Advanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Iraq.
Membranes (Basel). 2020 Nov 21;10(11):363. doi: 10.3390/membranes10110363.
In this study, biopolymer composite electrolytes based on chitosan:ammonium iodide:Zn(II)-complex plasticized with glycerol were successfully prepared using the solution casting technique. Various electrical and electrochemical parameters of the biopolymer composite electrolytes' films were evaluated prior to device application. The highest conducting plasticized membrane was found to have a conductivity of 1.17 × 10 S/cm. It is shown that the number density, mobility, and diffusion coefficient of cations and anions fractions are increased with the glycerol amount. Field emission scanning electron microscope and Fourier transform infrared spectroscopy techniques are used to study the morphology and structure of the films. The non-Debye type of relaxation process was confirmed from the peak appearance of the dielectric relaxation study. The obtained transference number of ions (cations and anions) and electrons for the highest conducting sample were identified to be 0.98 and 0.02, respectively. Linear sweep voltammetry shows that the electrochemical stability of the highest conducting plasticized system is 1.37 V. The cyclic voltammetry response displayed no redox reaction peaks over its entire potential range. It was discovered that the addition of Zn(II)-complex and glycerol plasticizer improved the electric double-layer capacitor device performances. Numerous crucial parameters of the electric double-layer capacitor device were obtained from the charge-discharge profile. The prepared electric double-layer capacitor device showed that the initial values of specific capacitance, equivalence series resistance, energy density, and power density are 36 F/g, 177 Ω, 4.1 Wh/kg, and 480 W/kg, respectively.
在本研究中，采用溶液浇铸技术成功制备了基于壳聚糖：碘化铵：Zn(II)络合物并以甘油增塑的生物聚合物复合电解质。在将生物聚合物复合电解质薄膜应用于器件之前，对其各种电学和电化学参数进行了评估。发现导电性最高的增塑膜的电导率为1.17×10 S/cm。结果表明，阳离子和阴离子部分的数密度、迁移率和扩散系数随甘油含量的增加而增大。用场发射扫描电子显微镜和傅里叶变换红外光谱技术研究了薄膜的形态和结构。从介电弛豫研究的峰值出现确认了非德拜型弛豫过程。对于导电性最高的样品，所测得的离子（阳离子和阴离子）和电子的迁移数分别为0.98和0.02。线性扫描伏安法表明，导电性最高的增塑体系的电化学稳定性为1.37 V。循环伏安响应在其整个电位范围内均未显示氧化还原反应峰。发现添加Zn(II)络合物和甘油增塑剂可改善双电层电容器器件的性能。从充放电曲线获得了双电层电容器器件的许多关键参数。所制备的双电层电容器器件表明，比电容、等效串联电阻、能量密度和功率密度的初始值分别为36 F/g、177 Ω、4.1 Wh/kg和480 W/kg。
