Hierarchical nanoarchitectonics of porous carbon from rice straw via K2CO3-activation for high-energy symmetric supercapacitors

Key Points

• High-energy storage is achieved with porous carbon developed from rice straw.
• The porous carbon shows significant performance improvements when activated with K2CO3.
• Activation using K2CO3 leads to enhanced supercapacitor efficiency across various charge-discharge cycles.
• Highlights transitioning to sustainable materials for energy storage, with rice straw serving as a renewable resource.