Flute-type porous carbon derived from soybean shells for high-performance all-solid-state symmetric supercapacitors.

Flute-type porous carbon was successfully prepared from soybean shells through convenient methods. The influence of mass ratio on the structure and electrochemical performance of porous carbon obtained from soybean shells was investigated in detail. The obtained porous carbon exhibited a micro-tube morphology structure with a specific surface area of 2802 m g, pore volume of 1.