A High Performance Supercapacitor Based on Green Synthesis Manganese Dioxide on Vertically Aligned Carbon Nanotube Scaffold

This research demonstrates the successful fabrication of a flexible, high-performance supercapacitor. It involves green and facile synthesis of ۳D MnO۲ nanoflakes on vertically aligned carbon nanotubes, which are themselves grown on stainless steel. The resulting electrode exhibits a significantly higher specific capacitance (۱۱۳۰ F/g) compared to a bare carbon nanotube electrode (۲۱۷ F/g) when tested at ۰.۲۵ A/g in ۰.۵ mol.L-۱ sodium sulfate electrolyte. This improvement is attributed to the synergistic effect of the hierarchical structure and the high electrochemical activity of MnO۲.

کلیدواژه ها:

Supercapacitor ، Manganese Dioxide ، Carbon nanotube ، Nano Flake