Abstract This paper reports the facile preparation of silver (Ag)-decorated, PEDOT:PSS-wrapped MnO2 nanowire ternary electrode materials for supercapacitor applications. Surface morphology of Ag–PEDOT:PSS–MnO2 material revealed the presence of Ag nanoparticles onto PEDOT:PSS wrapped MnO2 nanowires. This reduces the charge transfer resistance and improves charge transportation between the current collector and active material. The Ag–PEDOT:PSS–MnO2 electrode exhibited enhanced specific capacitance (838 Fg−1), energy density (0.486 kWh kg−1), and capacitance retention (86.8%). In addition, Ag–PEDOT:PSS–MnO2-based symmetric supercapacitor device exhibited ideal capacitive behavior. This study revealed a facile way to improve the electrochemical activity of MnO2 that can also be adopted for other metal oxides.

中文翻译：

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用于电化学超级电容器应用的银饰 PEDOT：PSS 包裹的 MnO 2 纳米线

摘要 本文报道了用于超级电容器应用的银 (Ag) 装饰、PEDOT:PSS 包裹的 MnO2 纳米线三元电极材料的简便制备。Ag-PEDOT:PSS-MnO2 材料的表面形态表明，在 PEDOT:PSS 包裹的 MnO2 纳米线上存在 Ag 纳米颗粒。这降低了电荷转移阻力并改善了集电器和活性材料之间的电荷转移。Ag-PEDOT:PSS-MnO2 电极表现出增强的比电容（838 Fg-1）、能量密度（0.486 kWh kg-1）和电容保持率（86.8%）。此外，基于 Ag-PEDOT:PSS-MnO2 的对称超级电容器器件表现出理想的电容行为。该研究揭示了一种提高 MnO2 电化学活性的简便方法，该方法也可用于其他金属氧化物。