由壳聚糖/聚氧化乙烯/高氯酸钠/粉煤灰复合材料制备固体聚合物电解质

The Fabrication of Solid Polymer Electrolyte from CS/PEO/NaClO/Fly Ash Composite.

作者信息

Ni'mah Yatim Lailun, Saputra Mohamat Ashar Eka, Suprapto Suprapto, Fansuri Hamzah, Suwarta Putu, Subhan Achmad, Pradanawati Sylvia Ayu

机构信息

Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia.

Mechanical Engineering Department, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia.

出版信息

Polymers (Basel). 2022 Nov 8;14(22):4792. doi: 10.3390/polym14224792.

Solid polymer electrolytes (SPEs) have been successfully fabricated from CS/PEO/NaClO/Fly ash composite. Chitosan (CS), an organic polymer, was blended with polyethylene oxide (PEO) to enhance its electrochemical properties. However, SPEs based on CS/PEO composites have low conductivity. Fly ash (FA) has been studied to be used as a filler to increase the ionic conductivity of SPEs. In this study, polymer composites based on CS and PEO were developed with the addition of FA as a filler using the solution casting method. The interactions between CS, PEO, NaClO, and fly ash were observed using FTIR. The SPE characterization using XRD and DSC showed a decrease in crystallinity after the addition of NaClO and FA. The SPE composite morphology and elemental distribution were investigated using SEM. SPE conductivity analysis using EIS showed the optimum results for SPE fabricated with a ratio of CS:PEO:NaClO = 3:2:7.5, which was 1.02 × 10 S cm at 30 °C and increased to 2.13 × 10 S cm at 60 °C. The addition of FA (5 wt.%) increased the conductivity to 3.20 × 10 S cm at 30 °C and increased to 4.34 × 10 S cm at 60 °C.

固态聚合物电解质（SPEs）已成功由壳聚糖/聚环氧乙烷/高氯酸钠/粉煤灰复合材料制备而成。壳聚糖（CS）作为一种有机聚合物，与聚环氧乙烷（PEO）共混以增强其电化学性能。然而，基于CS/PEO复合材料的固态聚合物电解质电导率较低。粉煤灰（FA）已被研究用作填料以提高固态聚合物电解质的离子电导率。在本研究中，采用溶液浇铸法，通过添加粉煤灰作为填料，制备了基于壳聚糖和聚环氧乙烷的聚合物复合材料。利用傅里叶变换红外光谱（FTIR）观察了壳聚糖、聚环氧乙烷、高氯酸钠和粉煤灰之间的相互作用。使用X射线衍射（XRD）和差示扫描量热法（DSC）对固态聚合物电解质进行表征，结果表明添加高氯酸钠和粉煤灰后结晶度降低。利用扫描电子显微镜（SEM）研究了固态聚合物电解质复合材料的形态和元素分布。使用电化学阻抗谱（EIS）对固态聚合物电解质进行电导率分析，结果表明，当壳聚糖：聚环氧乙烷：高氯酸钠的比例为3:2:7.5时制备的固态聚合物电解质具有最佳结果，在30℃时电导率为1.02×10⁻⁵ S/cm，在60℃时增加到2.13×10⁻⁵ S/cm。添加5 wt.%的粉煤灰后，在30℃时电导率提高到3.20×10⁻⁵ S/cm，在60℃时增加到4.34×10⁻⁵ S/cm。