Fabrication and Characterization of Flexible Cotton Fabric/Carbon Nanotubes/MnO₂ Nanocomposite-Based Electrodes for Energy Storage Application.

Flexible cotton fabric based electrodes were fabricated using multi-walled carbon nanotubes (MWCNTs) and manganese dioxide (MnO₂) nanocomposite which was prepared using wet chemical synthesis. Characterization of CNT/MnO₂ nanocomposite was done by Transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photon spectroscopy (XPS), Raman spectroscopy and BET analysis. Their electrochemical properties were investigated using three electrode systems. The high specific capacitance of 634.35 F/g was obtained for the nanocomposite coated cotton fabric prepared via dipping method. The high capacitance was attributed to its high specific surface area 678.9 m₂/g. The electrode exhibited high cyclic performance showing retention of 84% of its initial capacity in 0.5 M sodium sulphate (Na₂SO₄) solution. The demonstrated high specific capacitance of CNT/MnO₂ nanocomposite makes it a promising electrode material for energy storage applications due to its low cost and flexibility.