Platanus leaf-based activated carbon(PLAC) was synthesized through high temperature carbonization and KOH chemical activation, using dry platanus leaves as raw materials. Scanning electron microscopy(SEM), energy dispersive spectrometry(EDS), X-ray photoelectron spectroscopy(XPS), Fourier transform infrared spectroscopy(FTIR) and nitrogen adsorption-desorption techniques were used to characterize the morphology, composition, specific surface area and pore size distribution of the PLAC. The cyclic voltammetr...