Abstract

This study reports the electrochemical properties of Manganese dioxide (MnO₂) with four types of conducting polymers such as polyaniline (PANi), polythiophene (PTh), polypyyrole, and polyindole (PIn) by preparing their composites. All four conducting polymers were prepared by chemical oxidative polymerization approach. The prepared composites were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), Raman spectroscopy, ultra–violate visible (UV–VIS) spectroscopy, and photoluminance (PL). Similarly, the supercapacitive properties such, cyclic voltammetry (CV) curve, capacitance retention and cycle stability of composite materials were investigated. The highest value of specific capacitance was obtained for MnO₂-PANi (Mn-PANi) composite, which was found to be 633.75 Fg⁻¹.

摘要

本研究通过制备复合材料，报告了二氧化锰 (MnO ₂ ) 与四种导电聚合物如聚苯胺 (PANi)、聚噻吩 (PTh)、聚吡咯和聚吲哚 (PIn)的电化学性能。所有四种导电聚合物均通过化学氧化聚合方法制备。制备的复合材料通过 X 射线衍射 (XRD)、扫描电子显微镜 (SEM)、拉曼光谱、紫外可见 (UV-VIS) 光谱和光致发光 (PL) 进行表征。同样，研究了复合材料的超级电容特性，如循环伏安 (CV) 曲线、电容保持率和循环稳定性。MnO ₂获得最高比电容值-PANi (Mn-PANi) 复合材料，发现其为 633.75 Fg ^-1。