Interconnected honeycomb-like porous carbon derived from plane tree fluff for high performance supercapacitors

摘要: Three-dimensional interconnected honeycomb-like porous carbon (IHPC-800) is successfully fabricated via activated and graphitized plane tree fluff with the aid of Co2+ KOH in a synthetic process at 800 °C. The as-prepared IHPC-800 exhibits advantageous structural features for application supercapacitors (SCs), including pathways, high specific surface area (1154 m2 g−1), large pore volume (0.78 cm3 heteroatom doping, full graphitization. This material possesses very charge storage capacity capacitance 493 F g−1 2 M H2SO4 three-electrode system current density 0.2 A g−1. It excellent cycle stability, even over 10 000 cycles retention more than 96%. energy 42.8 W h kg−1 also verified 1 LiPF6 EC/DEC as organic electrolyte power 299 kg−1. electrochemical performance facile effective synthesis bio-derived materials point to an economical feasible strategy large-scale production SCs.