Aziz Shujahadeen B, Dannoun Elham M A, Hamsan M H, Abdulwahid Rebar T, Mishra Kuldeep, Nofal Muaffaq M, Kadir M F Z
Hameed Majid Advanced Polymeric Materials Research Lab., Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Kurdistan Regional Government, Iraq.
Department of Civil Engineering, College of Engineering, Komar University of Science and Technology, Sulaimani 46001, Kurdistan Regional Government, Iraq.
Membranes (Basel). 2021 Apr 14;11(4):289. doi: 10.3390/membranes11040289.
The current work shows the preparation of plasticized chitosan-magnesium acetate Mg(CHCOO)-based polymer electrolyte dispersed with nickel (Ni) metal complexes via solution casting. Investigations of electrical and electrochemical properties of the prepared polymer composite electrolyte were carried out. The structural and optical properties of the samples were studied using X-ray diffraction (XRD) and UV-Vis spectroscopy techniques. The structural and optical outcomes revealed a clear enhancement in both absorbance and amorphous nature of the samples upon the addition of Ni metal complexes. Through the simulation of impedance data, various ion transport parameters were calculated. The electrochemical performance of the sample was examined by means of transference number measurement (TNM), linear sweep voltammetry (LSV) and cyclic voltammetry (CV) measurements. The TNM analysis confirmed the dominance of ions as the main charge carrier in the electrolyte with t of (0.96) compared to only (0.04) for t. The present electrolyte was stable in the range of 0 V to 2.4 V, which was obtained from linear sweep voltammetry (LSV). A result from CV proved that the electrical double-layer capacitor (EDLC) has a capacitive behavior as no redox peaks could be observed. The presence of Ni improved the charge-discharge cycle of the EDLC due to its amorphous behavior. The average performances of the EDLC were recorded as 41.7 F/g, 95%, 5.86 Wh/kg and 628 W/kg for specific capacitance, coulombic efficiency, energy and power densities, respectively. The fabricated EDLC device was found to be stable up to 1000 cycles.
当前工作展示了通过溶液浇铸法制备的增塑壳聚糖 - 醋酸镁Mg(CHCOO)基聚合物电解质，其中分散有镍（Ni）金属配合物。对所制备的聚合物复合电解质的电学和电化学性质进行了研究。使用X射线衍射（XRD）和紫外 - 可见光谱技术研究了样品的结构和光学性质。结构和光学结果表明，添加Ni金属配合物后，样品的吸光度和非晶性质均有明显增强。通过对阻抗数据的模拟，计算了各种离子传输参数。通过迁移数测量（TNM）、线性扫描伏安法（LSV）和循环伏安法（CV）测量对样品的电化学性能进行了检测。TNM分析证实了离子作为电解质中主要电荷载流子的主导地位，t为（0.96），而t仅为（0.04）。从线性扫描伏安法（LSV）获得，当前电解质在0 V至2.4 V范围内稳定。CV结果证明，由于未观察到氧化还原峰，双电层电容器（EDLC）具有电容行为。Ni的存在因其非晶行为改善了EDLC的充放电循环。EDLC的平均性能记录为比电容41.7 F/g、库仑效率95%、能量密度5.86 Wh/kg和功率密度628 W/kg。所制备的EDLC器件在高达1000次循环时被发现是稳定的。
