Mango-Stone-Derived Nitrogen-Doped Porous Carbon for Supercapacitors

Area of Science:

• Materials Science
• Electrochemistry
• Sustainable Energy

Background:

• Developing advanced electrode materials is crucial for high-performance energy storage.
• Utilizing waste biomass for material synthesis offers a sustainable approach.

Purpose of the Study:

• To synthesize N-doped porous carbon (NC-800) from mango stones.
• To evaluate the electrochemical performance of NC-800 for energy storage applications.

Main Methods:

• Facile carbonization of mango stones at 800 °C to produce NC-800.
• Fabrication and testing of symmetric supercapacitor devices using NC-800 electrodes.

Main Results:

• NC-800 demonstrated high specific capacitance (280 F/g at 1 A/g) and excellent cycle stability (97.8% retention after 5000 cycles).
• The symmetric NC-800//NCs-800 device achieved an energy density of 31.1 Wh/kg at 800 W/kg with a voltage window of 0-1.6 V.

Conclusions:

• Mango stone-derived NC-800 is a highly effective and stable electrode material.
• NC-800 shows significant potential for practical applications in energy storage devices.