Synthesis of nanocarbon on snake fruit-peel’s activated carbon from waste cooking oil palm was conducted by a nebulized spray pyrolysis process (NSP) by varying the processing temperature from 650 -750 ºC. Ferrocene was used as a catalyst with fix concentration of 0.015 g/ml on each experiment variation. The structure of nanocarbon was formed as the carbon nanopsheres (CNS). As the temperature was increased from 650 to 750 ºC, the yield of formed CNSs became larger. Based on the characterizations using scanning electron microscopy (SEM), x-ray diffraction (XRD), raman spectroscopy, and BET test results, we determined that the temperature 750 ºC was the optimum condition for the growth of nanocarbon. Material from NSP process at 750 ºC was tested by its performance as an electrodes in lithium base supercapacitor with cyclic voltammetry method and we obtained a specificcapacitance of 79.57 F / g at a scan rate of 0.1 mV / s and voltage range from 2.5 - 4 V.