Hierarchical pore engineering in waste-derived carbons for supercapacitors: bridging the performance gap from three-electrode evaluation to practical two-electrode devices

Key Points

• This research aims to improve supercapacitor performance by engineering pore structures in waste-derived carbons.
• Developed waste-derived porous carbons with hierarchical pore structures
• Evaluated supercapacitors using three-electrode and two-electrode setups
• Analyzed cost-effectiveness and sustainability of the materials
• Demonstrated enhanced energy density and power delivery in two-electrode devices
• Achieved significant cost reductions due to waste material utilization
• Showed tunable pore structure positively impacts supercapacitor performance