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MnS2/carbon nanotube electrode for improved supercapacitor performance
Solid State Sciences ( IF 3.5 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.solidstatesciences.2020.106449
Rahul B. Pujari , Abhishek C. Lokhande , Abhijeet R. Shelke , Shital B. Kale , Dong-Weon Lee , Chandrakant D. Lokhande

Abstract Manganese sulfide is promising material for electrochemical applications. In this work, crystalline, porous, and nanostructured MnS2 and MnS2/carbon nanotube electrodes are prepared using dip dry and successive ionic layer adsorption and reaction (SILAR) methods at room temperature (300 K). Comparative charge storage of MnS2 and MnS2/carbon nanotube is examined in aqueous Na2SO4 and KOH electrolytes. The superior charge storage of MnS2/CNT in Na2SO4 is observed with highest specific capacitance of 855 F g-1 at 1 mA cm-2 current density and 90.1 % capacitance retention for continuous 5000 charge discharge cycles. The improvement in electrochemical charge storage of MnS2/CNT is associated with reduced electron transfer path and low equivalent series resistance (ESR) in Na2SO4.

中文翻译:

用于改善超级电容器性能的 MnS2/碳纳米管电极

摘要 硫化锰是一种很有前景的电化学应用材料。在这项工作中,在室温 (300 K) 下,使用浸干和连续离子层吸附和反应 (SILAR) 方法制备了结晶、多孔和纳米结构的 MnS2 和 MnS2/碳纳米管电极。在水性 Na2SO4 和 KOH 电解质中检查了 MnS2 和 MnS2/碳纳米管的比较电荷存储。MnS2/CNT 在 Na2SO4 中的卓越电荷存储被观察到,在 1 mA cm-2 电流密度下具有最高的 855 F g-1 比电容和 90.1% 的电容保持率,连续 5000 次充电放电循环。MnS2/CNT 电化学电荷存储的改进与 Na2SO4 中电子转移路径的减少和低等效串联电阻 (ESR) 相关。
更新日期:2021-01-01
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