Farma, RakhmawatiDeraman, MohamadTalibAwitdrusOmar, RamliIshakTaer, ErmanBasri, Nur HamizahDollah, Besek Nurdiana Mohd2015-09-072015-09-072015-09-07wahyu sari yenihttp://scitation.aip.org/content/aip/proceeding/aipcp/10.1063/1.4917095http://repository.unri.ac.id/xmlui/handle/123456789/7518Fibers of oil palm empty fruit bunches were used to produce self-adhesive carbon grains (SACG). The SACG green monoliths were carbonized in N2 environment at 800°C to produce carbon monoliths (CM) and the CM was CO2 activated at 800°C for 4 hour to produce activated carbon monolith electrodes (ACM). The physical properties of the CMs and ACMs were investigated using X-ray diffraction, field emission scanning electron microscopy and nitrogen adsorption-desorption. ACMs were used as electrode to fabricate symmetry supercapacitor cells and the cells which used H2SO4 electrolyte at 0.5, 1.0 and 1.5 M were investigated using electrochemical impedance spectroscopy, cyclic voltammetry and galvanostatic charge-discharge standard techniques. In this paper we report the physical properties of the ACM electrodes and the effect of electrolyte concentration on the electrochemical properties the ACM electrodesenActivated carbon monolithPorosityElectrolyte concentrationSupercapacitorElectrochemical propertiesUR-Scientific Work Lecturer