Elektroda karbon dari biomassa ampas daun cincau hijau(premna oblongifolia me…

Supercapacitors are energy storage devices known for their rapid charging time, long cycle life, and high electrochemical stability. One of the key components in a supercapacitor is the carbon electrode. This study aims to synthesize carbon electrodes derived from green grass jelly leaf biomass (Premna oblongifolia Merr) by incorporating nitrogen doping using thiourea. The synthesis process beg…